/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 00:37:41,126 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 00:37:41,216 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 00:37:41,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 00:37:41,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 00:37:41,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 00:37:41,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 00:37:41,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 00:37:41,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 00:37:41,249 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 00:37:41,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 00:37:41,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 00:37:41,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 00:37:41,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 00:37:41,251 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 00:37:41,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 00:37:41,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 00:37:41,252 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 00:37:41,252 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 00:37:41,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 00:37:41,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 00:37:41,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 00:37:41,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 00:37:41,253 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 00:37:41,254 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 00:37:41,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 00:37:41,254 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 00:37:41,254 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 00:37:41,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 00:37:41,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 00:37:41,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 00:37:41,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 00:37:41,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 00:37:41,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 00:37:41,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:37:41,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 00:37:41,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 00:37:41,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 00:37:41,257 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 00:37:41,258 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 00:37:41,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 00:37:41,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 00:37:41,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 00:37:41,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 00:37:41,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 00:37:41,259 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 00:37:41,259 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 00:37:41,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 00:37:41,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 00:37:41,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 00:37:41,525 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 00:37:41,525 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 00:37:41,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-22 00:37:42,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 00:37:43,267 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 00:37:43,268 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-22 00:37:43,304 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6afd61857/98eeaba03b4d424ba3d00916ea03f13b/FLAGe65c563ca [2023-12-22 00:37:43,321 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6afd61857/98eeaba03b4d424ba3d00916ea03f13b [2023-12-22 00:37:43,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 00:37:43,325 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 00:37:43,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 00:37:43,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 00:37:43,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 00:37:43,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:37:43" (1/1) ... [2023-12-22 00:37:43,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c066b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:43, skipping insertion in model container [2023-12-22 00:37:43,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:37:43" (1/1) ... [2023-12-22 00:37:43,446 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 00:37:43,735 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[8786,8799] [2023-12-22 00:37:43,845 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[16076,16089] [2023-12-22 00:37:44,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:37:44,540 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 00:37:44,600 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[8786,8799] [2023-12-22 00:37:44,613 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c[16076,16089] [2023-12-22 00:37:45,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 00:37:45,048 INFO L206 MainTranslator]: Completed translation [2023-12-22 00:37:45,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45 WrapperNode [2023-12-22 00:37:45,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 00:37:45,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 00:37:45,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 00:37:45,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 00:37:45,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,353 INFO L138 Inliner]: procedures = 37, calls = 21, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 5012 [2023-12-22 00:37:45,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 00:37:45,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 00:37:45,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 00:37:45,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 00:37:45,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,398 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,474 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-22 00:37:45,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 00:37:45,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 00:37:45,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 00:37:45,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 00:37:45,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (1/1) ... [2023-12-22 00:37:45,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 00:37:45,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 00:37:45,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-22 00:37:45,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-22 00:37:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 00:37:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 00:37:45,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 00:37:45,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 00:37:45,861 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 00:37:45,863 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 00:38:12,327 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 00:38:12,378 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 00:38:12,378 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-22 00:38:12,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:38:12 BoogieIcfgContainer [2023-12-22 00:38:12,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 00:38:12,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 00:38:12,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 00:38:12,383 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 00:38:12,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:37:43" (1/3) ... [2023-12-22 00:38:12,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44440c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:38:12, skipping insertion in model container [2023-12-22 00:38:12,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:37:45" (2/3) ... [2023-12-22 00:38:12,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44440c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:38:12, skipping insertion in model container [2023-12-22 00:38:12,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:38:12" (3/3) ... [2023-12-22 00:38:12,385 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4_overflow.ufo.UNBOUNDED.pals+Problem12_label02.c [2023-12-22 00:38:12,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 00:38:12,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-22 00:38:12,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 00:38:12,468 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;@4da27079, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 00:38:12,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-22 00:38:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:38:12,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:12,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:38:12,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:12,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1425616648, now seen corresponding path program 1 times [2023-12-22 00:38:12,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:12,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371550150] [2023-12-22 00:38:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:12,504 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:12,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:12,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:12,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 00:38:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:12,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 00:38:12,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:12,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:12,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:12,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371550150] [2023-12-22 00:38:12,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371550150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:12,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:12,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:38:12,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354050204] [2023-12-22 00:38:12,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:12,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 00:38:12,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:12,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 00:38:12,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:38:12,679 INFO L87 Difference]: Start difference. First operand has 820 states, 817 states have (on average 1.97796817625459) internal successors, (1616), 819 states have internal predecessors, (1616), 0 states have call successors, (0), 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:12,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:12,800 INFO L93 Difference]: Finished difference Result 1612 states and 3179 transitions. [2023-12-22 00:38:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 00:38:12,806 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-22 00:38:12,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:12,822 INFO L225 Difference]: With dead ends: 1612 [2023-12-22 00:38:12,822 INFO L226 Difference]: Without dead ends: 816 [2023-12-22 00:38:12,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 00:38:12,834 INFO L413 NwaCegarLoop]: 1544 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, 1544 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:12,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1544 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2023-12-22 00:38:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2023-12-22 00:38:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.898034398034398) internal successors, (1545), 815 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1545 transitions. [2023-12-22 00:38:12,907 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1545 transitions. Word has length 19 [2023-12-22 00:38:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:12,908 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1545 transitions. [2023-12-22 00:38:12,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1545 transitions. [2023-12-22 00:38:12,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-22 00:38:12,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:12,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:38:12,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:13,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:13,113 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:13,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:13,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1589486970, now seen corresponding path program 1 times [2023-12-22 00:38:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:13,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648919259] [2023-12-22 00:38:13,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:13,115 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:13,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:13,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-22 00:38:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:13,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:38:13,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:13,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:13,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:13,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:13,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648919259] [2023-12-22 00:38:13,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648919259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:13,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:13,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:38:13,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20899895] [2023-12-22 00:38:13,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:13,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:38:13,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:13,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:38:13,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:38:13,231 INFO L87 Difference]: Start difference. First operand 816 states and 1545 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:13,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:13,318 INFO L93 Difference]: Finished difference Result 854 states and 1604 transitions. [2023-12-22 00:38:13,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:38:13,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2023-12-22 00:38:13,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:13,329 INFO L225 Difference]: With dead ends: 854 [2023-12-22 00:38:13,329 INFO L226 Difference]: Without dead ends: 816 [2023-12-22 00:38:13,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:38:13,332 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 0 mSDsluCounter, 3057 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:13,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4599 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2023-12-22 00:38:13,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2023-12-22 00:38:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 814 states have (on average 1.8697788697788698) internal successors, (1522), 815 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1522 transitions. [2023-12-22 00:38:13,365 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1522 transitions. Word has length 19 [2023-12-22 00:38:13,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:13,366 INFO L495 AbstractCegarLoop]: Abstraction has 816 states and 1522 transitions. [2023-12-22 00:38:13,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:13,366 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1522 transitions. [2023-12-22 00:38:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-22 00:38:13,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:13,370 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] [2023-12-22 00:38:13,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 00:38:13,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:13,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:13,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:13,575 INFO L85 PathProgramCache]: Analyzing trace with hash 775575541, now seen corresponding path program 1 times [2023-12-22 00:38:13,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:13,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152338191] [2023-12-22 00:38:13,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:13,575 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 [2023-12-22 00:38:13,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:13,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:13,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-22 00:38:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:13,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:38:13,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:14,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:14,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:14,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152338191] [2023-12-22 00:38:14,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152338191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:14,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:14,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:38:14,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584867026] [2023-12-22 00:38:14,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:14,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:38:14,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:14,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:38:14,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:38:14,210 INFO L87 Difference]: Start difference. First operand 816 states and 1522 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:14,399 INFO L93 Difference]: Finished difference Result 991 states and 1802 transitions. [2023-12-22 00:38:14,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:38:14,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2023-12-22 00:38:14,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:14,404 INFO L225 Difference]: With dead ends: 991 [2023-12-22 00:38:14,404 INFO L226 Difference]: Without dead ends: 956 [2023-12-22 00:38:14,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:38:14,406 INFO L413 NwaCegarLoop]: 1516 mSDtfsCounter, 3123 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3123 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:14,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3123 Valid, 1808 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:38:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-12-22 00:38:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 882. [2023-12-22 00:38:14,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 880 states have (on average 1.8511363636363636) internal successors, (1629), 881 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:14,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1629 transitions. [2023-12-22 00:38:14,425 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1629 transitions. Word has length 41 [2023-12-22 00:38:14,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:14,426 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1629 transitions. [2023-12-22 00:38:14,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:14,426 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1629 transitions. [2023-12-22 00:38:14,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-22 00:38:14,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:14,427 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] [2023-12-22 00:38:14,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:14,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:14,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:14,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:14,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2119825339, now seen corresponding path program 1 times [2023-12-22 00:38:14,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:14,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081502414] [2023-12-22 00:38:14,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:14,633 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:14,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:14,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:14,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 00:38:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:14,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:14,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:14,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:14,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:14,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:14,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081502414] [2023-12-22 00:38:14,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081502414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:14,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:14,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:14,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860589641] [2023-12-22 00:38:14,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:14,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:14,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:14,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:14,775 INFO L87 Difference]: Start difference. First operand 882 states and 1629 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:14,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:14,822 INFO L93 Difference]: Finished difference Result 1068 states and 1927 transitions. [2023-12-22 00:38:14,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:14,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2023-12-22 00:38:14,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:14,827 INFO L225 Difference]: With dead ends: 1068 [2023-12-22 00:38:14,827 INFO L226 Difference]: Without dead ends: 967 [2023-12-22 00:38:14,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:14,831 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1472 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:14,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 1568 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-12-22 00:38:14,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 965. [2023-12-22 00:38:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 963 states have (on average 1.8255451713395638) internal successors, (1758), 964 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1758 transitions. [2023-12-22 00:38:14,855 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1758 transitions. Word has length 43 [2023-12-22 00:38:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:14,856 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1758 transitions. [2023-12-22 00:38:14,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:14,856 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1758 transitions. [2023-12-22 00:38:14,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-22 00:38:14,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:14,858 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] [2023-12-22 00:38:14,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:15,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:15,062 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:15,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:15,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1351966150, now seen corresponding path program 1 times [2023-12-22 00:38:15,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:15,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736283653] [2023-12-22 00:38:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:15,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:15,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:15,064 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:15,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-22 00:38:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:15,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:38:15,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:15,179 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:15,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:15,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736283653] [2023-12-22 00:38:15,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736283653] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:15,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:15,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-22 00:38:15,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230054764] [2023-12-22 00:38:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:15,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:38:15,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:15,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:38:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:38:15,181 INFO L87 Difference]: Start difference. First operand 965 states and 1758 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:15,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:15,239 INFO L93 Difference]: Finished difference Result 979 states and 1775 transitions. [2023-12-22 00:38:15,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:38:15,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2023-12-22 00:38:15,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:15,244 INFO L225 Difference]: With dead ends: 979 [2023-12-22 00:38:15,245 INFO L226 Difference]: Without dead ends: 977 [2023-12-22 00:38:15,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:38:15,246 INFO L413 NwaCegarLoop]: 1518 mSDtfsCounter, 1 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4546 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 [2023-12-22 00:38:15,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4546 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:15,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-12-22 00:38:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 973. [2023-12-22 00:38:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 971 states have (on average 1.8177136972193615) internal successors, (1765), 972 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1765 transitions. [2023-12-22 00:38:15,267 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1765 transitions. Word has length 44 [2023-12-22 00:38:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:15,267 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1765 transitions. [2023-12-22 00:38:15,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1765 transitions. [2023-12-22 00:38:15,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:38:15,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:15,268 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] [2023-12-22 00:38:15,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:15,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:15,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:15,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:15,473 INFO L85 PathProgramCache]: Analyzing trace with hash -302650947, now seen corresponding path program 1 times [2023-12-22 00:38:15,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:15,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085043005] [2023-12-22 00:38:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:15,473 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:15,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:15,474 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:15,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-22 00:38:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:15,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:15,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:15,622 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:15,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:15,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1085043005] [2023-12-22 00:38:15,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1085043005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:15,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:15,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:15,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931894390] [2023-12-22 00:38:15,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:15,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:15,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:15,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:15,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:15,625 INFO L87 Difference]: Start difference. First operand 973 states and 1765 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:15,663 INFO L93 Difference]: Finished difference Result 1177 states and 2085 transitions. [2023-12-22 00:38:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:38:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:15,668 INFO L225 Difference]: With dead ends: 1177 [2023-12-22 00:38:15,668 INFO L226 Difference]: Without dead ends: 1070 [2023-12-22 00:38:15,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:15,671 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 1484 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:15,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:15,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2023-12-22 00:38:15,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2023-12-22 00:38:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1066 states have (on average 1.7926829268292683) internal successors, (1911), 1067 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1911 transitions. [2023-12-22 00:38:15,695 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1911 transitions. Word has length 45 [2023-12-22 00:38:15,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:15,696 INFO L495 AbstractCegarLoop]: Abstraction has 1068 states and 1911 transitions. [2023-12-22 00:38:15,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1911 transitions. [2023-12-22 00:38:15,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:38:15,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:15,698 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] [2023-12-22 00:38:15,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:15,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:15,908 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:15,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:15,908 INFO L85 PathProgramCache]: Analyzing trace with hash -888363075, now seen corresponding path program 1 times [2023-12-22 00:38:15,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:15,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908405437] [2023-12-22 00:38:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:15,910 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:15,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:15,911 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:15,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 00:38:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:15,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:15,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:16,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:16,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:16,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:16,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908405437] [2023-12-22 00:38:16,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [908405437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:16,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:16,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:16,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556439898] [2023-12-22 00:38:16,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:16,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:16,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:16,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:16,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:16,045 INFO L87 Difference]: Start difference. First operand 1068 states and 1911 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:16,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:16,086 INFO L93 Difference]: Finished difference Result 1602 states and 2734 transitions. [2023-12-22 00:38:16,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:16,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:38:16,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:16,093 INFO L225 Difference]: With dead ends: 1602 [2023-12-22 00:38:16,093 INFO L226 Difference]: Without dead ends: 1317 [2023-12-22 00:38:16,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:16,094 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 1480 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:16,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 1615 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:16,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-12-22 00:38:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1315. [2023-12-22 00:38:16,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1313 states have (on average 1.7372429550647372) internal successors, (2281), 1314 states have internal predecessors, (2281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:16,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 2281 transitions. [2023-12-22 00:38:16,122 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 2281 transitions. Word has length 45 [2023-12-22 00:38:16,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:16,122 INFO L495 AbstractCegarLoop]: Abstraction has 1315 states and 2281 transitions. [2023-12-22 00:38:16,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 2281 transitions. [2023-12-22 00:38:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:38:16,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:16,123 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] [2023-12-22 00:38:16,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:16,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:16,336 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:16,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:16,336 INFO L85 PathProgramCache]: Analyzing trace with hash 370365, now seen corresponding path program 1 times [2023-12-22 00:38:16,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:16,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552709195] [2023-12-22 00:38:16,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:16,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:16,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:16,338 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:16,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 00:38:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:16,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:16,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:16,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:16,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:16,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552709195] [2023-12-22 00:38:16,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552709195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:16,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:16,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:16,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112692102] [2023-12-22 00:38:16,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:16,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:16,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:16,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:16,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:16,463 INFO L87 Difference]: Start difference. First operand 1315 states and 2281 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:16,511 INFO L93 Difference]: Finished difference Result 2307 states and 3781 transitions. [2023-12-22 00:38:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:38:16,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:16,518 INFO L225 Difference]: With dead ends: 2307 [2023-12-22 00:38:16,519 INFO L226 Difference]: Without dead ends: 1775 [2023-12-22 00:38:16,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:16,520 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1478 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:16,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:16,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2023-12-22 00:38:16,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1773. [2023-12-22 00:38:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1771 states have (on average 1.6651609260304912) internal successors, (2949), 1772 states have internal predecessors, (2949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:16,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2949 transitions. [2023-12-22 00:38:16,559 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2949 transitions. Word has length 45 [2023-12-22 00:38:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:16,559 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 2949 transitions. [2023-12-22 00:38:16,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2949 transitions. [2023-12-22 00:38:16,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-22 00:38:16,560 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:16,560 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] [2023-12-22 00:38:16,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:16,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:16,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:16,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:16,764 INFO L85 PathProgramCache]: Analyzing trace with hash -262707011, now seen corresponding path program 1 times [2023-12-22 00:38:16,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:16,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879490410] [2023-12-22 00:38:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:16,765 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:16,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:16,767 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:16,800 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 (10)] Waiting until timeout for monitored process [2023-12-22 00:38:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:16,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:16,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:16,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:16,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:16,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879490410] [2023-12-22 00:38:16,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879490410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:16,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:16,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:16,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21759925] [2023-12-22 00:38:16,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:16,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:16,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:16,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:16,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:16,906 INFO L87 Difference]: Start difference. First operand 1773 states and 2949 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:16,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:16,964 INFO L93 Difference]: Finished difference Result 3609 states and 5659 transitions. [2023-12-22 00:38:16,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:16,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2023-12-22 00:38:16,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:16,974 INFO L225 Difference]: With dead ends: 3609 [2023-12-22 00:38:16,974 INFO L226 Difference]: Without dead ends: 2619 [2023-12-22 00:38:16,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:16,978 INFO L413 NwaCegarLoop]: 1561 mSDtfsCounter, 1482 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1621 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:16,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1621 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:16,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2023-12-22 00:38:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2617. [2023-12-22 00:38:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2615 states have (on average 1.5835564053537285) internal successors, (4141), 2616 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:17,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 4141 transitions. [2023-12-22 00:38:17,136 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 4141 transitions. Word has length 45 [2023-12-22 00:38:17,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:17,137 INFO L495 AbstractCegarLoop]: Abstraction has 2617 states and 4141 transitions. [2023-12-22 00:38:17,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:17,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 4141 transitions. [2023-12-22 00:38:17,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 00:38:17,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:17,138 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] [2023-12-22 00:38:17,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:17,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:17,342 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:17,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:17,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1070420117, now seen corresponding path program 1 times [2023-12-22 00:38:17,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:17,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068042797] [2023-12-22 00:38:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:17,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:17,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:17,344 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:17,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 00:38:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:17,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:38:17,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:18,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:38:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:18,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:18,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068042797] [2023-12-22 00:38:18,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068042797] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:38:18,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:38:18,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:38:18,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054855560] [2023-12-22 00:38:18,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:38:18,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:38:18,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:18,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:38:18,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:38:18,524 INFO L87 Difference]: Start difference. First operand 2617 states and 4141 transitions. Second operand has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:20,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:20,399 INFO L93 Difference]: Finished difference Result 6667 states and 9962 transitions. [2023-12-22 00:38:20,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:38:20,400 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-12-22 00:38:20,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:20,416 INFO L225 Difference]: With dead ends: 6667 [2023-12-22 00:38:20,416 INFO L226 Difference]: Without dead ends: 5369 [2023-12-22 00:38:20,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2023-12-22 00:38:20,422 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 2175 mSDsluCounter, 9191 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 10712 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:20,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 10712 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:38:20,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5369 states. [2023-12-22 00:38:20,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5369 to 4449. [2023-12-22 00:38:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4449 states, 4447 states have (on average 1.526647177872723) internal successors, (6789), 4448 states have internal predecessors, (6789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:20,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 6789 transitions. [2023-12-22 00:38:20,548 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 6789 transitions. Word has length 61 [2023-12-22 00:38:20,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:20,549 INFO L495 AbstractCegarLoop]: Abstraction has 4449 states and 6789 transitions. [2023-12-22 00:38:20,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.875) internal successors, (110), 16 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:20,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 6789 transitions. [2023-12-22 00:38:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-22 00:38:20,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:20,556 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] [2023-12-22 00:38:20,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:20,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:20,760 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:20,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash 484707989, now seen corresponding path program 1 times [2023-12-22 00:38:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808334149] [2023-12-22 00:38:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:20,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:20,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:20,762 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:20,765 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 (12)] Waiting until timeout for monitored process [2023-12-22 00:38:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:20,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:20,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:20,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:20,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:20,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:20,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808334149] [2023-12-22 00:38:20,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808334149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:20,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:20,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:20,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423666306] [2023-12-22 00:38:20,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:20,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:20,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:20,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:20,878 INFO L87 Difference]: Start difference. First operand 4449 states and 6789 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:20,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:20,962 INFO L93 Difference]: Finished difference Result 7061 states and 10624 transitions. [2023-12-22 00:38:20,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:20,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-22 00:38:20,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:20,975 INFO L225 Difference]: With dead ends: 7061 [2023-12-22 00:38:20,975 INFO L226 Difference]: Without dead ends: 3395 [2023-12-22 00:38:20,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:20,980 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 39 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:20,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3059 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:20,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2023-12-22 00:38:21,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3388. [2023-12-22 00:38:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3386 states have (on average 1.5499113998818665) internal successors, (5248), 3387 states have internal predecessors, (5248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 5248 transitions. [2023-12-22 00:38:21,075 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 5248 transitions. Word has length 61 [2023-12-22 00:38:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:21,075 INFO L495 AbstractCegarLoop]: Abstraction has 3388 states and 5248 transitions. [2023-12-22 00:38:21,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 5248 transitions. [2023-12-22 00:38:21,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-22 00:38:21,076 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:21,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:38:21,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:21,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:21,280 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:21,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1794718171, now seen corresponding path program 1 times [2023-12-22 00:38:21,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:21,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402074057] [2023-12-22 00:38:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:21,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:21,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:21,283 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:21,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 00:38:21,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:21,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:21,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:21,445 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:21,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:21,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402074057] [2023-12-22 00:38:21,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402074057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:21,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:21,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:38:21,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175337159] [2023-12-22 00:38:21,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:21,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:21,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:21,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:21,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:21,447 INFO L87 Difference]: Start difference. First operand 3388 states and 5248 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:54,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:54,888 INFO L93 Difference]: Finished difference Result 4892 states and 8121 transitions. [2023-12-22 00:38:54,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-12-22 00:38:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:54,901 INFO L225 Difference]: With dead ends: 4892 [2023-12-22 00:38:54,902 INFO L226 Difference]: Without dead ends: 4139 [2023-12-22 00:38:54,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:54,903 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 800 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:54,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 304 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 33.3s Time] [2023-12-22 00:38:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4139 states. [2023-12-22 00:38:54,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4139 to 4139. [2023-12-22 00:38:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4139 states, 4137 states have (on average 1.566110708242688) internal successors, (6479), 4138 states have internal predecessors, (6479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:55,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4139 states to 4139 states and 6479 transitions. [2023-12-22 00:38:55,019 INFO L78 Accepts]: Start accepts. Automaton has 4139 states and 6479 transitions. Word has length 62 [2023-12-22 00:38:55,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:55,020 INFO L495 AbstractCegarLoop]: Abstraction has 4139 states and 6479 transitions. [2023-12-22 00:38:55,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:55,020 INFO L276 IsEmpty]: Start isEmpty. Operand 4139 states and 6479 transitions. [2023-12-22 00:38:55,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-22 00:38:55,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:55,021 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] [2023-12-22 00:38:55,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:55,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:55,229 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:55,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:55,230 INFO L85 PathProgramCache]: Analyzing trace with hash -2046146071, now seen corresponding path program 1 times [2023-12-22 00:38:55,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:55,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381836307] [2023-12-22 00:38:55,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:55,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:55,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:55,232 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:55,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 00:38:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:55,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:55,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:55,345 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:55,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:55,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:55,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381836307] [2023-12-22 00:38:55,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381836307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:55,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:55,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:55,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678743131] [2023-12-22 00:38:55,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:55,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:55,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:55,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:55,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:55,347 INFO L87 Difference]: Start difference. First operand 4139 states and 6479 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:55,405 INFO L93 Difference]: Finished difference Result 5439 states and 8365 transitions. [2023-12-22 00:38:55,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:55,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-12-22 00:38:55,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:55,424 INFO L225 Difference]: With dead ends: 5439 [2023-12-22 00:38:55,424 INFO L226 Difference]: Without dead ends: 2845 [2023-12-22 00:38:55,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:55,428 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:55,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3044 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:55,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2023-12-22 00:38:55,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2843. [2023-12-22 00:38:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 2841 states have (on average 1.608940513903555) internal successors, (4571), 2842 states have internal predecessors, (4571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 4571 transitions. [2023-12-22 00:38:55,493 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 4571 transitions. Word has length 63 [2023-12-22 00:38:55,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:55,493 INFO L495 AbstractCegarLoop]: Abstraction has 2843 states and 4571 transitions. [2023-12-22 00:38:55,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 4571 transitions. [2023-12-22 00:38:55,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-22 00:38:55,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:55,496 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] [2023-12-22 00:38:55,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:55,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:55,700 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:55,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:55,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1289319727, now seen corresponding path program 1 times [2023-12-22 00:38:55,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:55,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143845417] [2023-12-22 00:38:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:55,701 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:55,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:55,703 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:55,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 00:38:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:55,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:38:55,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:56,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:56,760 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:38:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:57,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:57,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143845417] [2023-12-22 00:38:57,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143845417] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:38:57,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:38:57,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:38:57,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605384744] [2023-12-22 00:38:57,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:38:57,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:38:57,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:57,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:38:57,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:38:57,110 INFO L87 Difference]: Start difference. First operand 2843 states and 4571 transitions. Second operand has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:58,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:58,569 INFO L93 Difference]: Finished difference Result 6475 states and 9711 transitions. [2023-12-22 00:38:58,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:38:58,569 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-12-22 00:38:58,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:58,579 INFO L225 Difference]: With dead ends: 6475 [2023-12-22 00:38:58,579 INFO L226 Difference]: Without dead ends: 5177 [2023-12-22 00:38:58,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:38:58,583 INFO L413 NwaCegarLoop]: 1557 mSDtfsCounter, 3301 mSDsluCounter, 10677 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 12234 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:58,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3301 Valid, 12234 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-22 00:38:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2023-12-22 00:38:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 4283. [2023-12-22 00:38:58,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 1.5302499416024293) internal successors, (6551), 4282 states have internal predecessors, (6551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 6551 transitions. [2023-12-22 00:38:58,739 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 6551 transitions. Word has length 64 [2023-12-22 00:38:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:58,739 INFO L495 AbstractCegarLoop]: Abstraction has 4283 states and 6551 transitions. [2023-12-22 00:38:58,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.375) internal successors, (118), 16 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 6551 transitions. [2023-12-22 00:38:58,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-22 00:38:58,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:58,742 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] [2023-12-22 00:38:58,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:58,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:58,946 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:58,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:58,946 INFO L85 PathProgramCache]: Analyzing trace with hash -924458161, now seen corresponding path program 1 times [2023-12-22 00:38:58,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:58,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537172734] [2023-12-22 00:38:58,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:58,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:58,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:58,948 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:58,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 00:38:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:59,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:38:59,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:38:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:38:59,053 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:38:59,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:38:59,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537172734] [2023-12-22 00:38:59,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537172734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:38:59,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:38:59,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:38:59,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054982972] [2023-12-22 00:38:59,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:38:59,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:38:59,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:38:59,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:38:59,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:59,055 INFO L87 Difference]: Start difference. First operand 4283 states and 6551 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:38:59,103 INFO L93 Difference]: Finished difference Result 5655 states and 8473 transitions. [2023-12-22 00:38:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:38:59,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-12-22 00:38:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:38:59,109 INFO L225 Difference]: With dead ends: 5655 [2023-12-22 00:38:59,109 INFO L226 Difference]: Without dead ends: 2917 [2023-12-22 00:38:59,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:38:59,112 INFO L413 NwaCegarLoop]: 1537 mSDtfsCounter, 31 mSDsluCounter, 1492 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:38:59,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3029 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:38:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2023-12-22 00:38:59,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2915. [2023-12-22 00:38:59,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2913 states have (on average 1.581531067627875) internal successors, (4607), 2914 states have internal predecessors, (4607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4607 transitions. [2023-12-22 00:38:59,173 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4607 transitions. Word has length 66 [2023-12-22 00:38:59,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:38:59,174 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4607 transitions. [2023-12-22 00:38:59,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:38:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4607 transitions. [2023-12-22 00:38:59,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-22 00:38:59,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:38:59,175 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] [2023-12-22 00:38:59,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 00:38:59,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:59,378 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:38:59,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:38:59,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1076250505, now seen corresponding path program 1 times [2023-12-22 00:38:59,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:38:59,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542137458] [2023-12-22 00:38:59,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:38:59,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:38:59,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:38:59,381 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:38:59,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 00:38:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:38:59,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:38:59,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:00,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:00,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:00,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542137458] [2023-12-22 00:39:00,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542137458] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:00,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:00,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:39:00,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951626297] [2023-12-22 00:39:00,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:00,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:39:00,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:00,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:39:00,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:39:00,600 INFO L87 Difference]: Start difference. First operand 2915 states and 4607 transitions. Second operand has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:01,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:01,890 INFO L93 Difference]: Finished difference Result 6547 states and 9579 transitions. [2023-12-22 00:39:01,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 00:39:01,891 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 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 67 [2023-12-22 00:39:01,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:01,898 INFO L225 Difference]: With dead ends: 6547 [2023-12-22 00:39:01,898 INFO L226 Difference]: Without dead ends: 5177 [2023-12-22 00:39:01,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=573, Unknown=0, NotChecked=0, Total=756 [2023-12-22 00:39:01,900 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 4756 mSDsluCounter, 12145 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 13684 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:01,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 13684 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:39:01,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2023-12-22 00:39:02,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 4427. [2023-12-22 00:39:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4427 states, 4425 states have (on average 1.496723163841808) internal successors, (6623), 4426 states have internal predecessors, (6623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4427 states to 4427 states and 6623 transitions. [2023-12-22 00:39:02,022 INFO L78 Accepts]: Start accepts. Automaton has 4427 states and 6623 transitions. Word has length 67 [2023-12-22 00:39:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:02,022 INFO L495 AbstractCegarLoop]: Abstraction has 4427 states and 6623 transitions. [2023-12-22 00:39:02,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.875) internal successors, (126), 16 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4427 states and 6623 transitions. [2023-12-22 00:39:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-22 00:39:02,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:02,024 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] [2023-12-22 00:39:02,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:02,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:02,227 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:02,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:02,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1093001867, now seen corresponding path program 1 times [2023-12-22 00:39:02,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:02,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932054777] [2023-12-22 00:39:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:02,228 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 [2023-12-22 00:39:02,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:02,229 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:02,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-22 00:39:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:02,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:39:02,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:02,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:39:02,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:02,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932054777] [2023-12-22 00:39:02,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932054777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:39:02,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:39:02,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:39:02,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785977520] [2023-12-22 00:39:02,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:39:02,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:39:02,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:02,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:39:02,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:39:02,356 INFO L87 Difference]: Start difference. First operand 4427 states and 6623 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:02,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:02,464 INFO L93 Difference]: Finished difference Result 5805 states and 8482 transitions. [2023-12-22 00:39:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:39:02,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2023-12-22 00:39:02,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:02,470 INFO L225 Difference]: With dead ends: 5805 [2023-12-22 00:39:02,470 INFO L226 Difference]: Without dead ends: 2923 [2023-12-22 00:39:02,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:39:02,474 INFO L413 NwaCegarLoop]: 1530 mSDtfsCounter, 27 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:02,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3014 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 00:39:02,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2023-12-22 00:39:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2921. [2023-12-22 00:39:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2919 states have (on average 1.5570400822199384) internal successors, (4545), 2920 states have internal predecessors, (4545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:02,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4545 transitions. [2023-12-22 00:39:02,530 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4545 transitions. Word has length 69 [2023-12-22 00:39:02,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:02,530 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4545 transitions. [2023-12-22 00:39:02,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:02,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4545 transitions. [2023-12-22 00:39:02,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-22 00:39:02,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:02,532 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-22 00:39:02,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:02,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:02,738 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:02,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:02,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1035096355, now seen corresponding path program 1 times [2023-12-22 00:39:02,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:02,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343976347] [2023-12-22 00:39:02,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:02,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:02,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:02,740 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:02,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-22 00:39:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:02,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 00:39:02,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:03,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:03,829 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:03,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:03,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343976347] [2023-12-22 00:39:03,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343976347] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:03,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:03,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2023-12-22 00:39:03,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031530295] [2023-12-22 00:39:03,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:03,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-22 00:39:03,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:03,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-22 00:39:03,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-22 00:39:03,831 INFO L87 Difference]: Start difference. First operand 2921 states and 4545 transitions. Second operand has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:05,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:05,061 INFO L93 Difference]: Finished difference Result 5531 states and 7976 transitions. [2023-12-22 00:39:05,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-22 00:39:05,062 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 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 70 [2023-12-22 00:39:05,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:05,068 INFO L225 Difference]: With dead ends: 5531 [2023-12-22 00:39:05,069 INFO L226 Difference]: Without dead ends: 4155 [2023-12-22 00:39:05,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2023-12-22 00:39:05,073 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 3255 mSDsluCounter, 13512 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3255 SdHoareTripleChecker+Valid, 15033 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:05,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3255 Valid, 15033 Invalid, 568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-22 00:39:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4155 states. [2023-12-22 00:39:05,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4155 to 3905. [2023-12-22 00:39:05,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3903 states have (on average 1.485523955931335) internal successors, (5798), 3904 states have internal predecessors, (5798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:05,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 5798 transitions. [2023-12-22 00:39:05,175 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 5798 transitions. Word has length 70 [2023-12-22 00:39:05,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:05,175 INFO L495 AbstractCegarLoop]: Abstraction has 3905 states and 5798 transitions. [2023-12-22 00:39:05,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 8.375) internal successors, (134), 16 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:05,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 5798 transitions. [2023-12-22 00:39:05,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-22 00:39:05,177 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:05,177 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] [2023-12-22 00:39:05,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:05,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:05,386 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:05,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:05,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1680204251, now seen corresponding path program 1 times [2023-12-22 00:39:05,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:05,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171797660] [2023-12-22 00:39:05,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:05,387 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:05,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:05,388 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:05,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-22 00:39:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:05,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 00:39:05,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:39:05,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:05,747 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-22 00:39:05,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:05,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171797660] [2023-12-22 00:39:05,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171797660] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:05,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:05,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 00:39:05,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821798652] [2023-12-22 00:39:05,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:05,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:39:05,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:05,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:39:05,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:39:05,749 INFO L87 Difference]: Start difference. First operand 3905 states and 5798 transitions. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:06,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:06,038 INFO L93 Difference]: Finished difference Result 10665 states and 14454 transitions. [2023-12-22 00:39:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:39:06,039 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 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 [2023-12-22 00:39:06,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:06,053 INFO L225 Difference]: With dead ends: 10665 [2023-12-22 00:39:06,053 INFO L226 Difference]: Without dead ends: 8305 [2023-12-22 00:39:06,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 00:39:06,057 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 3011 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3011 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:06,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3011 Valid, 3185 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:39:06,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8305 states. [2023-12-22 00:39:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8305 to 8099. [2023-12-22 00:39:06,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3343213535877485) internal successors, (10804), 8098 states have internal predecessors, (10804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10804 transitions. [2023-12-22 00:39:06,303 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10804 transitions. Word has length 72 [2023-12-22 00:39:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:06,303 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10804 transitions. [2023-12-22 00:39:06,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:06,303 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10804 transitions. [2023-12-22 00:39:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 00:39:06,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:06,307 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:06,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:06,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:06,513 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:06,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:06,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1283376003, now seen corresponding path program 1 times [2023-12-22 00:39:06,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:06,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [547461775] [2023-12-22 00:39:06,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:06,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:06,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:06,515 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:06,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-22 00:39:06,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:06,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:39:06,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:07,770 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:07,770 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:08,374 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:08,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:08,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [547461775] [2023-12-22 00:39:08,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [547461775] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:08,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:08,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:39:08,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960579511] [2023-12-22 00:39:08,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:08,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:39:08,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:08,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:39:08,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:39:08,377 INFO L87 Difference]: Start difference. First operand 8099 states and 10804 transitions. Second operand has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:10,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:10,627 INFO L93 Difference]: Finished difference Result 12487 states and 16291 transitions. [2023-12-22 00:39:10,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 00:39:10,627 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-22 00:39:10,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:10,637 INFO L225 Difference]: With dead ends: 12487 [2023-12-22 00:39:10,637 INFO L226 Difference]: Without dead ends: 8205 [2023-12-22 00:39:10,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=383, Invalid=1423, Unknown=0, NotChecked=0, Total=1806 [2023-12-22 00:39:10,643 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 15054 mSDsluCounter, 7757 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15054 SdHoareTripleChecker+Valid, 9265 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:10,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15054 Valid, 9265 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:39:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8205 states. [2023-12-22 00:39:10,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8205 to 8099. [2023-12-22 00:39:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3208595776213412) internal successors, (10695), 8098 states have internal predecessors, (10695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:10,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10695 transitions. [2023-12-22 00:39:10,987 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10695 transitions. Word has length 111 [2023-12-22 00:39:10,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:10,987 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10695 transitions. [2023-12-22 00:39:10,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.769230769230769) internal successors, (202), 25 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:10,987 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10695 transitions. [2023-12-22 00:39:10,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-22 00:39:10,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:10,991 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:10,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:11,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:11,195 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:11,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:11,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1764056059, now seen corresponding path program 1 times [2023-12-22 00:39:11,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:11,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217315200] [2023-12-22 00:39:11,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:11,196 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 [2023-12-22 00:39:11,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:11,205 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:11,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-22 00:39:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:11,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:39:11,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:12,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:13,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:13,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217315200] [2023-12-22 00:39:13,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217315200] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:13,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:13,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:39:13,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792154192] [2023-12-22 00:39:13,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:13,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:39:13,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:39:13,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:39:13,471 INFO L87 Difference]: Start difference. First operand 8099 states and 10695 transitions. Second operand has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:15,721 INFO L93 Difference]: Finished difference Result 11771 states and 15258 transitions. [2023-12-22 00:39:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:39:15,722 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 states have internal predecessors, (208), 0 states have call successors, (0), 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 112 [2023-12-22 00:39:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:15,729 INFO L225 Difference]: With dead ends: 11771 [2023-12-22 00:39:15,730 INFO L226 Difference]: Without dead ends: 8989 [2023-12-22 00:39:15,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=417, Invalid=1563, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:39:15,734 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 17852 mSDsluCounter, 6275 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17852 SdHoareTripleChecker+Valid, 7783 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:15,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17852 Valid, 7783 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-22 00:39:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2023-12-22 00:39:16,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8099. [2023-12-22 00:39:16,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3144374459676422) internal successors, (10643), 8098 states have internal predecessors, (10643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10643 transitions. [2023-12-22 00:39:16,076 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10643 transitions. Word has length 112 [2023-12-22 00:39:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:16,076 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10643 transitions. [2023-12-22 00:39:16,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.0) internal successors, (208), 25 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10643 transitions. [2023-12-22 00:39:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-22 00:39:16,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:16,080 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:16,087 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 [2023-12-22 00:39:16,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:16,284 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:16,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:16,284 INFO L85 PathProgramCache]: Analyzing trace with hash 631404563, now seen corresponding path program 1 times [2023-12-22 00:39:16,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:16,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746850605] [2023-12-22 00:39:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:16,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:16,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:16,286 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:16,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-22 00:39:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:16,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-22 00:39:16,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:17,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 22 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:18,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:18,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746850605] [2023-12-22 00:39:18,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746850605] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:18,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:18,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2023-12-22 00:39:18,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524343849] [2023-12-22 00:39:18,213 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:18,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:39:18,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:39:18,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=555, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:39:18,214 INFO L87 Difference]: Start difference. First operand 8099 states and 10643 transitions. Second operand has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:20,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:20,885 INFO L93 Difference]: Finished difference Result 11273 states and 14545 transitions. [2023-12-22 00:39:20,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-22 00:39:20,885 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-22 00:39:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:20,892 INFO L225 Difference]: With dead ends: 11273 [2023-12-22 00:39:20,892 INFO L226 Difference]: Without dead ends: 8617 [2023-12-22 00:39:20,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=416, Invalid=1564, Unknown=0, NotChecked=0, Total=1980 [2023-12-22 00:39:20,894 INFO L413 NwaCegarLoop]: 1508 mSDtfsCounter, 14955 mSDsluCounter, 7850 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14955 SdHoareTripleChecker+Valid, 9358 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:20,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14955 Valid, 9358 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-22 00:39:20,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8617 states. [2023-12-22 00:39:21,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8617 to 8099. [2023-12-22 00:39:21,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8097 states have (on average 1.3077683092503396) internal successors, (10589), 8098 states have internal predecessors, (10589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10589 transitions. [2023-12-22 00:39:21,190 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10589 transitions. Word has length 113 [2023-12-22 00:39:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:21,190 INFO L495 AbstractCegarLoop]: Abstraction has 8099 states and 10589 transitions. [2023-12-22 00:39:21,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.23076923076923) internal successors, (214), 25 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10589 transitions. [2023-12-22 00:39:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:39:21,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:21,194 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:21,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:21,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:21,398 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:21,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:21,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1691167953, now seen corresponding path program 1 times [2023-12-22 00:39:21,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:21,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556374965] [2023-12-22 00:39:21,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:21,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:21,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:21,400 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:21,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-22 00:39:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:21,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:39:21,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:22,702 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:23,247 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:23,248 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:23,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556374965] [2023-12-22 00:39:23,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556374965] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:23,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:23,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:39:23,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887283392] [2023-12-22 00:39:23,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:23,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:39:23,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:23,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:39:23,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:39:23,250 INFO L87 Difference]: Start difference. First operand 8099 states and 10589 transitions. Second operand has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:28,701 INFO L93 Difference]: Finished difference Result 12203 states and 15539 transitions. [2023-12-22 00:39:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-22 00:39:28,701 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:39:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:28,711 INFO L225 Difference]: With dead ends: 12203 [2023-12-22 00:39:28,711 INFO L226 Difference]: Without dead ends: 11033 [2023-12-22 00:39:28,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1010 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=804, Invalid=4026, Unknown=0, NotChecked=0, Total=4830 [2023-12-22 00:39:28,714 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 3731 mSDsluCounter, 20377 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 21984 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:28,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 21984 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 00:39:28,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11033 states. [2023-12-22 00:39:28,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11033 to 5947. [2023-12-22 00:39:28,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 5945 states have (on average 1.3473507148864592) internal successors, (8010), 5946 states have internal predecessors, (8010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:28,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 8010 transitions. [2023-12-22 00:39:28,963 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 8010 transitions. Word has length 114 [2023-12-22 00:39:28,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:28,963 INFO L495 AbstractCegarLoop]: Abstraction has 5947 states and 8010 transitions. [2023-12-22 00:39:28,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.346153846153847) internal successors, (217), 26 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:28,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 8010 transitions. [2023-12-22 00:39:28,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:39:28,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:28,966 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:28,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:29,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:29,172 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:29,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2045873525, now seen corresponding path program 1 times [2023-12-22 00:39:29,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:29,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248382069] [2023-12-22 00:39:29,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:29,173 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:29,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:29,174 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:29,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-22 00:39:29,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:29,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:39:29,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:30,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 13 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:31,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:31,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248382069] [2023-12-22 00:39:31,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248382069] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:31,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:31,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:39:31,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908554042] [2023-12-22 00:39:31,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:31,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:39:31,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:31,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:39:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:39:31,398 INFO L87 Difference]: Start difference. First operand 5947 states and 8010 transitions. Second operand has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:36,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:36,886 INFO L93 Difference]: Finished difference Result 13579 states and 17042 transitions. [2023-12-22 00:39:36,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-12-22 00:39:36,886 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:39:36,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:36,895 INFO L225 Difference]: With dead ends: 13579 [2023-12-22 00:39:36,895 INFO L226 Difference]: Without dead ends: 11435 [2023-12-22 00:39:36,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=760, Invalid=3796, Unknown=0, NotChecked=0, Total=4556 [2023-12-22 00:39:36,898 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 3457 mSDsluCounter, 21897 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3457 SdHoareTripleChecker+Valid, 23491 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:36,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3457 Valid, 23491 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-22 00:39:36,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11435 states. [2023-12-22 00:39:37,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11435 to 6663. [2023-12-22 00:39:37,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6663 states, 6661 states have (on average 1.3250262723314818) internal successors, (8826), 6662 states have internal predecessors, (8826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6663 states to 6663 states and 8826 transitions. [2023-12-22 00:39:37,219 INFO L78 Accepts]: Start accepts. Automaton has 6663 states and 8826 transitions. Word has length 114 [2023-12-22 00:39:37,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:37,219 INFO L495 AbstractCegarLoop]: Abstraction has 6663 states and 8826 transitions. [2023-12-22 00:39:37,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.538461538461538) internal successors, (222), 26 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 6663 states and 8826 transitions. [2023-12-22 00:39:37,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:39:37,221 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:37,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:37,228 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 [2023-12-22 00:39:37,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:37,425 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:37,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:37,426 INFO L85 PathProgramCache]: Analyzing trace with hash 94714123, now seen corresponding path program 1 times [2023-12-22 00:39:37,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:37,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272736813] [2023-12-22 00:39:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:37,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:37,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:37,428 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:37,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-22 00:39:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:37,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:39:37,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 31 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:38,747 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 31 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:39,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:39,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272736813] [2023-12-22 00:39:39,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272736813] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:39,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:39,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:39:39,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896928447] [2023-12-22 00:39:39,420 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:39,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:39:39,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:39,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:39:39,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:39:39,421 INFO L87 Difference]: Start difference. First operand 6663 states and 8826 transitions. Second operand has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:45,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:45,892 INFO L93 Difference]: Finished difference Result 10668 states and 13619 transitions. [2023-12-22 00:39:45,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-22 00:39:45,892 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:39:45,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:45,900 INFO L225 Difference]: With dead ends: 10668 [2023-12-22 00:39:45,900 INFO L226 Difference]: Without dead ends: 9370 [2023-12-22 00:39:45,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1054 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=881, Invalid=4089, Unknown=0, NotChecked=0, Total=4970 [2023-12-22 00:39:45,904 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 2018 mSDsluCounter, 21989 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 23603 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:45,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 23603 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-22 00:39:45,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9370 states. [2023-12-22 00:39:46,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9370 to 7698. [2023-12-22 00:39:46,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7698 states, 7696 states have (on average 1.304054054054054) internal successors, (10036), 7697 states have internal predecessors, (10036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7698 states to 7698 states and 10036 transitions. [2023-12-22 00:39:46,256 INFO L78 Accepts]: Start accepts. Automaton has 7698 states and 10036 transitions. Word has length 114 [2023-12-22 00:39:46,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:46,256 INFO L495 AbstractCegarLoop]: Abstraction has 7698 states and 10036 transitions. [2023-12-22 00:39:46,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.153846153846153) internal successors, (212), 26 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:46,256 INFO L276 IsEmpty]: Start isEmpty. Operand 7698 states and 10036 transitions. [2023-12-22 00:39:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-22 00:39:46,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:46,258 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:46,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:46,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:46,462 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:46,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:46,463 INFO L85 PathProgramCache]: Analyzing trace with hash 592714927, now seen corresponding path program 1 times [2023-12-22 00:39:46,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:46,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [337807285] [2023-12-22 00:39:46,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:46,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:46,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:46,464 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:46,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-22 00:39:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:46,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-22 00:39:46,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:48,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:39:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:48,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:48,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [337807285] [2023-12-22 00:39:48,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [337807285] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:39:48,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:39:48,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2023-12-22 00:39:48,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220468853] [2023-12-22 00:39:48,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:39:48,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-22 00:39:48,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:48,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-22 00:39:48,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-22 00:39:48,984 INFO L87 Difference]: Start difference. First operand 7698 states and 10036 transitions. Second operand has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:56,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:39:56,617 INFO L93 Difference]: Finished difference Result 19283 states and 23575 transitions. [2023-12-22 00:39:56,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2023-12-22 00:39:56,618 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-22 00:39:56,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:39:56,634 INFO L225 Difference]: With dead ends: 19283 [2023-12-22 00:39:56,634 INFO L226 Difference]: Without dead ends: 17437 [2023-12-22 00:39:56,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1371 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1011, Invalid=4995, Unknown=0, NotChecked=0, Total=6006 [2023-12-22 00:39:56,639 INFO L413 NwaCegarLoop]: 1619 mSDtfsCounter, 2006 mSDsluCounter, 25259 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 26878 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:39:56,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 26878 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-22 00:39:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17437 states. [2023-12-22 00:39:57,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17437 to 13191. [2023-12-22 00:39:57,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13191 states, 13189 states have (on average 1.2461141860641443) internal successors, (16435), 13190 states have internal predecessors, (16435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 16435 transitions. [2023-12-22 00:39:57,412 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 16435 transitions. Word has length 114 [2023-12-22 00:39:57,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:39:57,413 INFO L495 AbstractCegarLoop]: Abstraction has 13191 states and 16435 transitions. [2023-12-22 00:39:57,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.961538461538462) internal successors, (207), 26 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:39:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 16435 transitions. [2023-12-22 00:39:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-22 00:39:57,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:39:57,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:39:57,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-22 00:39:57,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:57,620 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:39:57,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:39:57,620 INFO L85 PathProgramCache]: Analyzing trace with hash 339510033, now seen corresponding path program 1 times [2023-12-22 00:39:57,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:39:57,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797805744] [2023-12-22 00:39:57,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:39:57,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:39:57,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:39:57,621 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:39:57,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-22 00:39:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:39:57,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 00:39:57,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:39:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:39:57,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:39:57,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:39:57,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797805744] [2023-12-22 00:39:57,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797805744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:39:57,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:39:57,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 00:39:57,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205511291] [2023-12-22 00:39:57,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:39:57,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 00:39:57,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:39:57,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 00:39:57,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:39:57,787 INFO L87 Difference]: Start difference. First operand 13191 states and 16435 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:40:33,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:40:33,469 INFO L93 Difference]: Finished difference Result 16197 states and 21770 transitions. [2023-12-22 00:40:33,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 00:40:33,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2023-12-22 00:40:33,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:40:33,489 INFO L225 Difference]: With dead ends: 16197 [2023-12-22 00:40:33,489 INFO L226 Difference]: Without dead ends: 14693 [2023-12-22 00:40:33,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 00:40:33,491 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 812 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:40:33,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 588 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 35.0s Time] [2023-12-22 00:40:33,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14693 states. [2023-12-22 00:40:34,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14693 to 14693. [2023-12-22 00:40:34,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14693 states, 14691 states have (on average 1.252807841535634) internal successors, (18405), 14692 states have internal predecessors, (18405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:40:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14693 states to 14693 states and 18405 transitions. [2023-12-22 00:40:34,157 INFO L78 Accepts]: Start accepts. Automaton has 14693 states and 18405 transitions. Word has length 127 [2023-12-22 00:40:34,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:40:34,157 INFO L495 AbstractCegarLoop]: Abstraction has 14693 states and 18405 transitions. [2023-12-22 00:40:34,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:40:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 14693 states and 18405 transitions. [2023-12-22 00:40:34,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 00:40:34,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:40:34,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:40:34,171 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 [2023-12-22 00:40:34,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:40:34,364 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:40:34,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:40:34,364 INFO L85 PathProgramCache]: Analyzing trace with hash 435412418, now seen corresponding path program 1 times [2023-12-22 00:40:34,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:40:34,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971375391] [2023-12-22 00:40:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:40:34,365 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:40:34,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:40:34,366 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:40:34,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-22 00:40:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:40:34,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 00:40:34,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:40:34,997 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:40:34,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:40:34,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:40:34,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971375391] [2023-12-22 00:40:34,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971375391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:40:34,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:40:34,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 00:40:34,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299476287] [2023-12-22 00:40:34,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:40:34,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 00:40:34,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:40:34,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 00:40:34,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:40:34,999 INFO L87 Difference]: Start difference. First operand 14693 states and 18405 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:41:02,832 INFO L93 Difference]: Finished difference Result 18486 states and 24022 transitions. [2023-12-22 00:41:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 00:41:02,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 [2023-12-22 00:41:02,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:41:02,854 INFO L225 Difference]: With dead ends: 18486 [2023-12-22 00:41:02,854 INFO L226 Difference]: Without dead ends: 15444 [2023-12-22 00:41:02,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 00:41:02,858 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 770 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 2999 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 3153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 2999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:41:02,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 822 Invalid, 3153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 2999 Invalid, 0 Unknown, 0 Unchecked, 27.1s Time] [2023-12-22 00:41:02,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15444 states. [2023-12-22 00:41:03,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15444 to 15444. [2023-12-22 00:41:03,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15444 states, 15442 states have (on average 1.242908949617925) internal successors, (19193), 15443 states have internal predecessors, (19193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15444 states to 15444 states and 19193 transitions. [2023-12-22 00:41:03,588 INFO L78 Accepts]: Start accepts. Automaton has 15444 states and 19193 transitions. Word has length 133 [2023-12-22 00:41:03,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:41:03,589 INFO L495 AbstractCegarLoop]: Abstraction has 15444 states and 19193 transitions. [2023-12-22 00:41:03,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:03,589 INFO L276 IsEmpty]: Start isEmpty. Operand 15444 states and 19193 transitions. [2023-12-22 00:41:03,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:41:03,593 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:41:03,593 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:41:03,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-22 00:41:03,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:03,794 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:41:03,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:41:03,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1408268439, now seen corresponding path program 2 times [2023-12-22 00:41:03,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:41:03,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648736918] [2023-12-22 00:41:03,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:41:03,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:03,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:41:03,796 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:41:03,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-22 00:41:03,858 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:41:03,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:41:03,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:41:03,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:41:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-12-22 00:41:04,680 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:41:04,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:41:04,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648736918] [2023-12-22 00:41:04,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648736918] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:41:04,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:41:04,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:41:04,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600258961] [2023-12-22 00:41:04,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:41:04,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:41:04,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:41:04,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:41:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:04,681 INFO L87 Difference]: Start difference. First operand 15444 states and 19193 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:05,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:41:05,533 INFO L93 Difference]: Finished difference Result 18848 states and 23431 transitions. [2023-12-22 00:41:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:41:05,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2023-12-22 00:41:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:41:05,546 INFO L225 Difference]: With dead ends: 18848 [2023-12-22 00:41:05,546 INFO L226 Difference]: Without dead ends: 17835 [2023-12-22 00:41:05,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:05,550 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 1598 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 3220 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:41:05,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 3220 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:41:05,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17835 states. [2023-12-22 00:41:06,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17835 to 17112. [2023-12-22 00:41:06,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17112 states, 17110 states have (on average 1.2345996493278784) internal successors, (21124), 17111 states have internal predecessors, (21124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:06,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17112 states to 17112 states and 21124 transitions. [2023-12-22 00:41:06,405 INFO L78 Accepts]: Start accepts. Automaton has 17112 states and 21124 transitions. Word has length 158 [2023-12-22 00:41:06,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:41:06,406 INFO L495 AbstractCegarLoop]: Abstraction has 17112 states and 21124 transitions. [2023-12-22 00:41:06,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:06,406 INFO L276 IsEmpty]: Start isEmpty. Operand 17112 states and 21124 transitions. [2023-12-22 00:41:06,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:41:06,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:41:06,411 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:41:06,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-22 00:41:06,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:06,612 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:41:06,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:41:06,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1053562867, now seen corresponding path program 2 times [2023-12-22 00:41:06,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:41:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835823286] [2023-12-22 00:41:06,613 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:41:06,613 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:06,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:41:06,614 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:41:06,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-22 00:41:06,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:41:06,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:41:06,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:41:06,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:41:07,673 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2023-12-22 00:41:07,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:41:07,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:41:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835823286] [2023-12-22 00:41:07,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835823286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:41:07,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:41:07,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:41:07,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880962892] [2023-12-22 00:41:07,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:41:07,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:41:07,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:41:07,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:41:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:07,674 INFO L87 Difference]: Start difference. First operand 17112 states and 21124 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:41:08,498 INFO L93 Difference]: Finished difference Result 19479 states and 24136 transitions. [2023-12-22 00:41:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:41:08,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2023-12-22 00:41:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:41:08,514 INFO L225 Difference]: With dead ends: 19479 [2023-12-22 00:41:08,514 INFO L226 Difference]: Without dead ends: 16856 [2023-12-22 00:41:08,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:08,518 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 4506 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4506 SdHoareTripleChecker+Valid, 3187 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:41:08,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4506 Valid, 3187 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:41:08,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16856 states. [2023-12-22 00:41:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16856 to 16133. [2023-12-22 00:41:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16133 states, 16131 states have (on average 1.2311078048478086) internal successors, (19859), 16132 states have internal predecessors, (19859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:09,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16133 states to 16133 states and 19859 transitions. [2023-12-22 00:41:09,293 INFO L78 Accepts]: Start accepts. Automaton has 16133 states and 19859 transitions. Word has length 158 [2023-12-22 00:41:09,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:41:09,293 INFO L495 AbstractCegarLoop]: Abstraction has 16133 states and 19859 transitions. [2023-12-22 00:41:09,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 16133 states and 19859 transitions. [2023-12-22 00:41:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:41:09,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:41:09,298 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:41:09,304 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 [2023-12-22 00:41:09,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:09,502 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:41:09,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:41:09,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1100816781, now seen corresponding path program 2 times [2023-12-22 00:41:09,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:41:09,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889337383] [2023-12-22 00:41:09,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:41:09,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:09,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:41:09,503 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:41:09,504 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 (32)] Waiting until timeout for monitored process [2023-12-22 00:41:09,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:41:09,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:41:09,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:41:09,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:41:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-12-22 00:41:10,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:41:10,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:41:10,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889337383] [2023-12-22 00:41:10,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889337383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:41:10,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:41:10,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:41:10,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210573025] [2023-12-22 00:41:10,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:41:10,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:41:10,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:41:10,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:41:10,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:10,518 INFO L87 Difference]: Start difference. First operand 16133 states and 19859 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:11,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:41:11,490 INFO L93 Difference]: Finished difference Result 18422 states and 22769 transitions. [2023-12-22 00:41:11,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:41:11,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2023-12-22 00:41:11,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:41:11,507 INFO L225 Difference]: With dead ends: 18422 [2023-12-22 00:41:11,507 INFO L226 Difference]: Without dead ends: 17395 [2023-12-22 00:41:11,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:11,512 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 3031 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3031 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:41:11,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3031 Valid, 3236 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:41:11,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17395 states. [2023-12-22 00:41:12,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17395 to 16901. [2023-12-22 00:41:12,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16901 states, 16899 states have (on average 1.2268181549204096) internal successors, (20732), 16900 states have internal predecessors, (20732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16901 states to 16901 states and 20732 transitions. [2023-12-22 00:41:12,295 INFO L78 Accepts]: Start accepts. Automaton has 16901 states and 20732 transitions. Word has length 158 [2023-12-22 00:41:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:41:12,296 INFO L495 AbstractCegarLoop]: Abstraction has 16901 states and 20732 transitions. [2023-12-22 00:41:12,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 16901 states and 20732 transitions. [2023-12-22 00:41:12,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-22 00:41:12,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:41:12,301 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:41:12,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-22 00:41:12,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:12,502 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:41:12,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:41:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash -602815977, now seen corresponding path program 2 times [2023-12-22 00:41:12,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:41:12,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846066134] [2023-12-22 00:41:12,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:41:12,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:12,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:41:12,504 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:41:12,504 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 (33)] Waiting until timeout for monitored process [2023-12-22 00:41:12,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-22 00:41:12,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:41:12,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 00:41:12,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:41:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-12-22 00:41:13,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 00:41:13,490 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:41:13,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846066134] [2023-12-22 00:41:13,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846066134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 00:41:13,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 00:41:13,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-22 00:41:13,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674624317] [2023-12-22 00:41:13,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 00:41:13,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 00:41:13,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:41:13,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 00:41:13,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:13,491 INFO L87 Difference]: Start difference. First operand 16901 states and 20732 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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) [2023-12-22 00:41:14,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:41:14,287 INFO L93 Difference]: Finished difference Result 19232 states and 23691 transitions. [2023-12-22 00:41:14,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-22 00:41:14,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 158 [2023-12-22 00:41:14,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:41:14,303 INFO L225 Difference]: With dead ends: 19232 [2023-12-22 00:41:14,303 INFO L226 Difference]: Without dead ends: 18175 [2023-12-22 00:41:14,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-22 00:41:14,307 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 4472 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4472 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-22 00:41:14,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4472 Valid, 3202 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-22 00:41:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18175 states. [2023-12-22 00:41:15,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18175 to 17681. [2023-12-22 00:41:15,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17681 states, 17679 states have (on average 1.2228632841224052) internal successors, (21619), 17680 states have internal predecessors, (21619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17681 states to 17681 states and 21619 transitions. [2023-12-22 00:41:15,278 INFO L78 Accepts]: Start accepts. Automaton has 17681 states and 21619 transitions. Word has length 158 [2023-12-22 00:41:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:41:15,278 INFO L495 AbstractCegarLoop]: Abstraction has 17681 states and 21619 transitions. [2023-12-22 00:41:15,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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) [2023-12-22 00:41:15,278 INFO L276 IsEmpty]: Start isEmpty. Operand 17681 states and 21619 transitions. [2023-12-22 00:41:15,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:41:15,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:41:15,284 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:41:15,287 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 [2023-12-22 00:41:15,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:15,484 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:41:15,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:41:15,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1990639489, now seen corresponding path program 1 times [2023-12-22 00:41:15,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:41:15,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878062913] [2023-12-22 00:41:15,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:41:15,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:15,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:41:15,486 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:41:15,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-22 00:41:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:41:15,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:41:15,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:41:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:41:17,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:41:19,011 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 38 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:41:19,012 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:41:19,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878062913] [2023-12-22 00:41:19,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878062913] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:41:19,012 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:41:19,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:41:19,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111931356] [2023-12-22 00:41:19,012 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:41:19,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:41:19,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:41:19,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:41:19,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:41:19,014 INFO L87 Difference]: Start difference. First operand 17681 states and 21619 transitions. Second operand has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:38,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:41:38,801 INFO L93 Difference]: Finished difference Result 22368 states and 27115 transitions. [2023-12-22 00:41:38,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-12-22 00:41:38,801 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2023-12-22 00:41:38,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:41:38,816 INFO L225 Difference]: With dead ends: 22368 [2023-12-22 00:41:38,817 INFO L226 Difference]: Without dead ends: 20510 [2023-12-22 00:41:38,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4488 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=2331, Invalid=14961, Unknown=0, NotChecked=0, Total=17292 [2023-12-22 00:41:38,822 INFO L413 NwaCegarLoop]: 1686 mSDtfsCounter, 3801 mSDsluCounter, 32841 mSDsCounter, 0 mSdLazyCounter, 5542 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3801 SdHoareTripleChecker+Valid, 34527 SdHoareTripleChecker+Invalid, 5568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:41:38,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3801 Valid, 34527 Invalid, 5568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 5542 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-12-22 00:41:38,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20510 states. [2023-12-22 00:41:39,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20510 to 11414. [2023-12-22 00:41:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11414 states, 11412 states have (on average 1.2584998247458816) internal successors, (14362), 11413 states have internal predecessors, (14362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11414 states to 11414 states and 14362 transitions. [2023-12-22 00:41:39,359 INFO L78 Accepts]: Start accepts. Automaton has 11414 states and 14362 transitions. Word has length 159 [2023-12-22 00:41:39,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:41:39,360 INFO L495 AbstractCegarLoop]: Abstraction has 11414 states and 14362 transitions. [2023-12-22 00:41:39,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.5) internal successors, (306), 36 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:41:39,360 INFO L276 IsEmpty]: Start isEmpty. Operand 11414 states and 14362 transitions. [2023-12-22 00:41:39,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:41:39,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:41:39,363 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:41:39,366 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 [2023-12-22 00:41:39,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:39,563 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:41:39,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:41:39,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1518408997, now seen corresponding path program 1 times [2023-12-22 00:41:39,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:41:39,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677301578] [2023-12-22 00:41:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:41:39,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:41:39,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:41:39,565 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:41:39,566 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 (35)] Waiting until timeout for monitored process [2023-12-22 00:41:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:41:39,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:41:39,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:41:41,670 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:41:41,670 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:41:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 54 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:41:42,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:41:42,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677301578] [2023-12-22 00:41:42,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677301578] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:41:42,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:41:42,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:41:42,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930008530] [2023-12-22 00:41:42,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:41:42,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:41:42,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:41:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:41:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:41:42,672 INFO L87 Difference]: Start difference. First operand 11414 states and 14362 transitions. Second operand has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:03,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:03,042 INFO L93 Difference]: Finished difference Result 15781 states and 19464 transitions. [2023-12-22 00:42:03,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2023-12-22 00:42:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2023-12-22 00:42:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:03,054 INFO L225 Difference]: With dead ends: 15781 [2023-12-22 00:42:03,054 INFO L226 Difference]: Without dead ends: 13904 [2023-12-22 00:42:03,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6304 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=2857, Invalid=19195, Unknown=0, NotChecked=0, Total=22052 [2023-12-22 00:42:03,059 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 5238 mSDsluCounter, 34032 mSDsCounter, 0 mSdLazyCounter, 5044 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5238 SdHoareTripleChecker+Valid, 35716 SdHoareTripleChecker+Invalid, 5079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 5044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-22 00:42:03,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5238 Valid, 35716 Invalid, 5079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 5044 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-22 00:42:03,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13904 states. [2023-12-22 00:42:03,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13904 to 11826. [2023-12-22 00:42:03,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11826 states, 11824 states have (on average 1.2539749661705006) internal successors, (14827), 11825 states have internal predecessors, (14827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:03,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11826 states to 11826 states and 14827 transitions. [2023-12-22 00:42:03,691 INFO L78 Accepts]: Start accepts. Automaton has 11826 states and 14827 transitions. Word has length 159 [2023-12-22 00:42:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:03,691 INFO L495 AbstractCegarLoop]: Abstraction has 11826 states and 14827 transitions. [2023-12-22 00:42:03,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.36111111111111) internal successors, (301), 36 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:03,692 INFO L276 IsEmpty]: Start isEmpty. Operand 11826 states and 14827 transitions. [2023-12-22 00:42:03,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-22 00:42:03,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:03,695 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:42:03,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-22 00:42:03,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:42:03,895 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:03,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash -223435263, now seen corresponding path program 1 times [2023-12-22 00:42:03,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:03,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1615227863] [2023-12-22 00:42:03,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:03,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:42:03,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:03,898 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:42:03,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-22 00:42:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:04,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:42:04,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:06,510 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:42:06,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:42:07,437 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 70 proven. 186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:42:07,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:07,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1615227863] [2023-12-22 00:42:07,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1615227863] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:42:07,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:42:07,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:42:07,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82732283] [2023-12-22 00:42:07,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:42:07,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:42:07,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:07,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:42:07,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:42:07,439 INFO L87 Difference]: Start difference. First operand 11826 states and 14827 transitions. Second operand has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:31,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:31,078 INFO L93 Difference]: Finished difference Result 16586 states and 20336 transitions. [2023-12-22 00:42:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-22 00:42:31,079 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2023-12-22 00:42:31,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:31,092 INFO L225 Difference]: With dead ends: 16586 [2023-12-22 00:42:31,092 INFO L226 Difference]: Without dead ends: 14665 [2023-12-22 00:42:31,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6993 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=3125, Invalid=21367, Unknown=0, NotChecked=0, Total=24492 [2023-12-22 00:42:31,096 INFO L413 NwaCegarLoop]: 1721 mSDtfsCounter, 5280 mSDsluCounter, 36328 mSDsCounter, 0 mSdLazyCounter, 6560 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5280 SdHoareTripleChecker+Valid, 38049 SdHoareTripleChecker+Invalid, 6594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 6560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:42:31,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5280 Valid, 38049 Invalid, 6594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34 Valid, 6560 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-12-22 00:42:31,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14665 states. [2023-12-22 00:42:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14665 to 12013. [2023-12-22 00:42:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12013 states, 12011 states have (on average 1.2513529264840564) internal successors, (15030), 12012 states have internal predecessors, (15030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12013 states to 12013 states and 15030 transitions. [2023-12-22 00:42:31,732 INFO L78 Accepts]: Start accepts. Automaton has 12013 states and 15030 transitions. Word has length 159 [2023-12-22 00:42:31,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:31,732 INFO L495 AbstractCegarLoop]: Abstraction has 12013 states and 15030 transitions. [2023-12-22 00:42:31,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.222222222222221) internal successors, (296), 36 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 12013 states and 15030 transitions. [2023-12-22 00:42:31,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-22 00:42:31,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:31,735 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:42:31,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2023-12-22 00:42:31,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:42:31,936 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:31,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:31,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1259832453, now seen corresponding path program 1 times [2023-12-22 00:42:31,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:31,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969865190] [2023-12-22 00:42:31,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:42:31,937 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:42:31,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:31,938 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:42:31,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-22 00:42:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:42:32,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-22 00:42:32,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:34,308 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 32 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:42:34,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:42:35,285 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 32 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:42:35,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:42:35,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969865190] [2023-12-22 00:42:35,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969865190] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:42:35,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:42:35,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-22 00:42:35,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090836512] [2023-12-22 00:42:35,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:42:35,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-22 00:42:35,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:42:35,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-22 00:42:35,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1152, Unknown=0, NotChecked=0, Total=1260 [2023-12-22 00:42:35,287 INFO L87 Difference]: Start difference. First operand 12013 states and 15030 transitions. Second operand has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:55,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:42:55,588 INFO L93 Difference]: Finished difference Result 24428 states and 29354 transitions. [2023-12-22 00:42:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-12-22 00:42:55,589 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2023-12-22 00:42:55,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:42:55,608 INFO L225 Difference]: With dead ends: 24428 [2023-12-22 00:42:55,608 INFO L226 Difference]: Without dead ends: 22680 [2023-12-22 00:42:55,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4172 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2091, Invalid=14165, Unknown=0, NotChecked=0, Total=16256 [2023-12-22 00:42:55,614 INFO L413 NwaCegarLoop]: 1684 mSDtfsCounter, 2153 mSDsluCounter, 39019 mSDsCounter, 0 mSdLazyCounter, 5989 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2153 SdHoareTripleChecker+Valid, 40703 SdHoareTripleChecker+Invalid, 6009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-22 00:42:55,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2153 Valid, 40703 Invalid, 6009 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 5989 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-12-22 00:42:55,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22680 states. [2023-12-22 00:42:56,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22680 to 20294. [2023-12-22 00:42:56,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20294 states, 20292 states have (on average 1.2107234378080032) internal successors, (24568), 20293 states have internal predecessors, (24568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:56,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20294 states to 20294 states and 24568 transitions. [2023-12-22 00:42:56,944 INFO L78 Accepts]: Start accepts. Automaton has 20294 states and 24568 transitions. Word has length 160 [2023-12-22 00:42:56,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:42:56,944 INFO L495 AbstractCegarLoop]: Abstraction has 20294 states and 24568 transitions. [2023-12-22 00:42:56,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.666666666666666) internal successors, (312), 36 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:42:56,945 INFO L276 IsEmpty]: Start isEmpty. Operand 20294 states and 24568 transitions. [2023-12-22 00:42:56,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:42:56,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:42:56,958 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:42:56,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-22 00:42:57,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:42:57,158 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:42:57,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:42:57,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1276984551, now seen corresponding path program 2 times [2023-12-22 00:42:57,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:42:57,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31012881] [2023-12-22 00:42:57,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-22 00:42:57,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:42:57,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:42:57,160 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:42:57,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-22 00:42:57,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-22 00:42:57,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-22 00:42:57,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:42:57,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:42:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 77 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:42:59,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 77 proven. 415 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:43:01,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:01,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31012881] [2023-12-22 00:43:01,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31012881] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:01,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:01,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:43:01,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955439022] [2023-12-22 00:43:01,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:01,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:43:01,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:01,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:43:01,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:43:01,702 INFO L87 Difference]: Start difference. First operand 20294 states and 24568 transitions. Second operand has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:54,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:43:54,099 INFO L93 Difference]: Finished difference Result 26345 states and 31656 transitions. [2023-12-22 00:43:54,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2023-12-22 00:43:54,104 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 0 states have call successors, (0), 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 203 [2023-12-22 00:43:54,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:43:54,123 INFO L225 Difference]: With dead ends: 26345 [2023-12-22 00:43:54,123 INFO L226 Difference]: Without dead ends: 22547 [2023-12-22 00:43:54,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 304 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33486 ImplicationChecksByTransitivity, 41.5s TimeCoverageRelationStatistics Valid=9253, Invalid=84077, Unknown=0, NotChecked=0, Total=93330 [2023-12-22 00:43:54,132 INFO L413 NwaCegarLoop]: 1742 mSDtfsCounter, 37704 mSDsluCounter, 19985 mSDsCounter, 0 mSdLazyCounter, 6851 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37704 SdHoareTripleChecker+Valid, 21727 SdHoareTripleChecker+Invalid, 6952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 6851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-22 00:43:54,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37704 Valid, 21727 Invalid, 6952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 6851 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-22 00:43:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22547 states. [2023-12-22 00:43:55,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22547 to 21090. [2023-12-22 00:43:55,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21090 states, 21088 states have (on average 1.2073691198786038) internal successors, (25461), 21089 states have internal predecessors, (25461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21090 states to 21090 states and 25461 transitions. [2023-12-22 00:43:55,600 INFO L78 Accepts]: Start accepts. Automaton has 21090 states and 25461 transitions. Word has length 203 [2023-12-22 00:43:55,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:43:55,600 INFO L495 AbstractCegarLoop]: Abstraction has 21090 states and 25461 transitions. [2023-12-22 00:43:55,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.818181818181818) internal successors, (388), 44 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:43:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 21090 states and 25461 transitions. [2023-12-22 00:43:55,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:43:55,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:43:55,609 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:43:55,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2023-12-22 00:43:55,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:43:55,810 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:43:55,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:43:55,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1394509471, now seen corresponding path program 1 times [2023-12-22 00:43:55,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:43:55,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658750002] [2023-12-22 00:43:55,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:43:55,811 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:43:55,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:43:55,812 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:43:55,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-22 00:43:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:43:55,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-22 00:43:55,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:43:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 100 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:43:57,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:43:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 100 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 00:43:59,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:43:59,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1658750002] [2023-12-22 00:43:59,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1658750002] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:43:59,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:43:59,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:43:59,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116404659] [2023-12-22 00:43:59,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:43:59,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:43:59,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:43:59,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:43:59,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1737, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:43:59,551 INFO L87 Difference]: Start difference. First operand 21090 states and 25461 transitions. Second operand has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:47,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:44:47,745 INFO L93 Difference]: Finished difference Result 26355 states and 31599 transitions. [2023-12-22 00:44:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2023-12-22 00:44:47,746 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 0 states have call successors, (0), 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 203 [2023-12-22 00:44:47,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:44:47,764 INFO L225 Difference]: With dead ends: 26355 [2023-12-22 00:44:47,764 INFO L226 Difference]: Without dead ends: 21671 [2023-12-22 00:44:47,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30215 ImplicationChecksByTransitivity, 36.2s TimeCoverageRelationStatistics Valid=8481, Invalid=77075, Unknown=0, NotChecked=0, Total=85556 [2023-12-22 00:44:47,773 INFO L413 NwaCegarLoop]: 1765 mSDtfsCounter, 29075 mSDsluCounter, 22560 mSDsCounter, 0 mSdLazyCounter, 8007 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29075 SdHoareTripleChecker+Valid, 24325 SdHoareTripleChecker+Invalid, 8099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 8007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:44:47,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29075 Valid, 24325 Invalid, 8099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [92 Valid, 8007 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-12-22 00:44:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21671 states. [2023-12-22 00:44:49,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21671 to 20491. [2023-12-22 00:44:49,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20491 states, 20489 states have (on average 1.2061594026062765) internal successors, (24713), 20490 states have internal predecessors, (24713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20491 states to 20491 states and 24713 transitions. [2023-12-22 00:44:49,319 INFO L78 Accepts]: Start accepts. Automaton has 20491 states and 24713 transitions. Word has length 203 [2023-12-22 00:44:49,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:44:49,319 INFO L495 AbstractCegarLoop]: Abstraction has 20491 states and 24713 transitions. [2023-12-22 00:44:49,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 8.704545454545455) internal successors, (383), 44 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:44:49,320 INFO L276 IsEmpty]: Start isEmpty. Operand 20491 states and 24713 transitions. [2023-12-22 00:44:49,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-12-22 00:44:49,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:44:49,329 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:44:49,333 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 [2023-12-22 00:44:49,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:44:49,530 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:44:49,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:44:49,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1350471655, now seen corresponding path program 1 times [2023-12-22 00:44:49,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:44:49,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [709717665] [2023-12-22 00:44:49,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:44:49,531 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:44:49,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:44:49,532 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:44:49,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-22 00:44:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:44:49,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-22 00:44:49,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:44:53,841 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 260 proven. 186 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:44:53,841 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:44:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 260 proven. 186 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-12-22 00:44:55,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:44:55,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [709717665] [2023-12-22 00:44:55,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [709717665] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:44:55,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:44:55,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2023-12-22 00:44:55,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292864913] [2023-12-22 00:44:55,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:44:55,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-12-22 00:44:55,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:44:55,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-12-22 00:44:55,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1722, Unknown=0, NotChecked=0, Total=1892 [2023-12-22 00:44:55,956 INFO L87 Difference]: Start difference. First operand 20491 states and 24713 transitions. Second operand has 44 states, 44 states have (on average 7.045454545454546) internal successors, (310), 44 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:22,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 00:51:22,157 INFO L93 Difference]: Finished difference Result 53506 states and 62464 transitions. [2023-12-22 00:51:22,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 720 states. [2023-12-22 00:51:22,159 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 7.045454545454546) internal successors, (310), 44 states have internal predecessors, (310), 0 states have call successors, (0), 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 203 [2023-12-22 00:51:22,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 00:51:22,213 INFO L225 Difference]: With dead ends: 53506 [2023-12-22 00:51:22,214 INFO L226 Difference]: Without dead ends: 50024 [2023-12-22 00:51:22,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 755 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258684 ImplicationChecksByTransitivity, 339.2s TimeCoverageRelationStatistics Valid=40708, Invalid=531584, Unknown=0, NotChecked=0, Total=572292 [2023-12-22 00:51:22,240 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 26671 mSDsluCounter, 33631 mSDsCounter, 0 mSdLazyCounter, 14143 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26671 SdHoareTripleChecker+Valid, 35680 SdHoareTripleChecker+Invalid, 14304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 14143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.5s IncrementalHoareTripleChecker+Time [2023-12-22 00:51:22,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26671 Valid, 35680 Invalid, 14304 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [161 Valid, 14143 Invalid, 0 Unknown, 0 Unchecked, 44.5s Time] [2023-12-22 00:51:22,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50024 states. [2023-12-22 00:51:24,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50024 to 26188. [2023-12-22 00:51:24,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26188 states, 26186 states have (on average 1.1921255632780876) internal successors, (31217), 26187 states have internal predecessors, (31217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:24,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26188 states to 26188 states and 31217 transitions. [2023-12-22 00:51:24,571 INFO L78 Accepts]: Start accepts. Automaton has 26188 states and 31217 transitions. Word has length 203 [2023-12-22 00:51:24,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 00:51:24,572 INFO L495 AbstractCegarLoop]: Abstraction has 26188 states and 31217 transitions. [2023-12-22 00:51:24,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.045454545454546) internal successors, (310), 44 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 00:51:24,572 INFO L276 IsEmpty]: Start isEmpty. Operand 26188 states and 31217 transitions. [2023-12-22 00:51:24,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-22 00:51:24,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 00:51:24,589 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-22 00:51:24,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-22 00:51:24,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:51:24,794 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 00:51:24,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 00:51:24,795 INFO L85 PathProgramCache]: Analyzing trace with hash -19906547, now seen corresponding path program 1 times [2023-12-22 00:51:24,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 00:51:24,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649362376] [2023-12-22 00:51:24,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 00:51:24,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:51:24,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 00:51:24,796 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 00:51:24,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-22 00:51:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 00:51:24,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-22 00:51:24,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 00:51:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 279 proven. 74 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-22 00:51:27,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 00:51:29,396 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 279 proven. 74 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-22 00:51:29,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 00:51:29,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649362376] [2023-12-22 00:51:29,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649362376] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 00:51:29,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 00:51:29,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20] total 40 [2023-12-22 00:51:29,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100056211] [2023-12-22 00:51:29,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 00:51:29,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-12-22 00:51:29,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 00:51:29,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-12-22 00:51:29,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=1409, Unknown=0, NotChecked=0, Total=1560 [2023-12-22 00:51:29,398 INFO L87 Difference]: Start difference. First operand 26188 states and 31217 transitions. Second operand has 40 states, 40 states have (on average 6.125) internal successors, (245), 40 states have internal predecessors, (245), 0 states have call successors, (0), 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... [2023-12-22 00:51:38,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-12-22 00:51:38,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=925, Invalid=4927, Unknown=0, NotChecked=0, Total=5852 [2023-12-22 00:51:38,594 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1567 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-22 00:51:38,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 1165 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-22 00:51:38,595 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-22 00:51:38,600 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 (41)] Forceful destruction successful, exit code 0 [2023-12-22 00:51:38,611 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 [2023-12-22 00:51:38,611 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 (41)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 00:51:38,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 00:51:38,796 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (26188states) and FLOYD_HOARE automaton (currently 44 states, 40 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 77 known predicates. [2023-12-22 00:51:38,798 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-22 00:51:38,800 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 00:51:38,802 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 00:51:38,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:51:38 BoogieIcfgContainer [2023-12-22 00:51:38,804 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 00:51:38,804 INFO L158 Benchmark]: Toolchain (without parser) took 835479.51ms. Allocated memory was 312.5MB in the beginning and 2.1GB in the end (delta: 1.7GB). Free memory was 244.1MB in the beginning and 870.6MB in the end (delta: -626.5MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2023-12-22 00:51:38,804 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 00:51:38,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1722.22ms. Allocated memory is still 312.5MB. Free memory was 243.8MB in the beginning and 171.2MB in the end (delta: 72.5MB). Peak memory consumption was 73.8MB. Max. memory is 8.0GB. [2023-12-22 00:51:38,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 302.71ms. Allocated memory is still 312.5MB. Free memory was 171.2MB in the beginning and 228.4MB in the end (delta: -57.1MB). Peak memory consumption was 48.8MB. Max. memory is 8.0GB. [2023-12-22 00:51:38,805 INFO L158 Benchmark]: Boogie Preprocessor took 351.71ms. Allocated memory was 312.5MB in the beginning and 509.6MB in the end (delta: 197.1MB). Free memory was 228.4MB in the beginning and 415.5MB in the end (delta: -187.2MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. [2023-12-22 00:51:38,805 INFO L158 Benchmark]: RCFGBuilder took 26672.28ms. Allocated memory was 509.6MB in the beginning and 683.7MB in the end (delta: 174.1MB). Free memory was 415.5MB in the beginning and 427.1MB in the end (delta: -11.5MB). Peak memory consumption was 220.2MB. Max. memory is 8.0GB. [2023-12-22 00:51:38,805 INFO L158 Benchmark]: TraceAbstraction took 806423.48ms. Allocated memory was 683.7MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 426.0MB in the beginning and 870.6MB in the end (delta: -444.6MB). Peak memory consumption was 933.2MB. Max. memory is 8.0GB. [2023-12-22 00:51:38,806 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 158.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1722.22ms. Allocated memory is still 312.5MB. Free memory was 243.8MB in the beginning and 171.2MB in the end (delta: 72.5MB). Peak memory consumption was 73.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 302.71ms. Allocated memory is still 312.5MB. Free memory was 171.2MB in the beginning and 228.4MB in the end (delta: -57.1MB). Peak memory consumption was 48.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 351.71ms. Allocated memory was 312.5MB in the beginning and 509.6MB in the end (delta: 197.1MB). Free memory was 228.4MB in the beginning and 415.5MB in the end (delta: -187.2MB). Peak memory consumption was 60.8MB. Max. memory is 8.0GB. * RCFGBuilder took 26672.28ms. Allocated memory was 509.6MB in the beginning and 683.7MB in the end (delta: 174.1MB). Free memory was 415.5MB in the beginning and 427.1MB in the end (delta: -11.5MB). Peak memory consumption was 220.2MB. Max. memory is 8.0GB. * TraceAbstraction took 806423.48ms. Allocated memory was 683.7MB in the beginning and 2.1GB in the end (delta: 1.4GB). Free memory was 426.0MB in the beginning and 870.6MB in the end (delta: -444.6MB). Peak memory consumption was 933.2MB. 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: 363]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 363). Cancelled while NwaCegarLoop was constructing difference of abstraction (26188states) and FLOYD_HOARE automaton (currently 44 states, 40 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 77 known predicates. - TimeoutResultAtElement [Line: 567]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 567). Cancelled while NwaCegarLoop was constructing difference of abstraction (26188states) and FLOYD_HOARE automaton (currently 44 states, 40 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 77 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 820 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 806.4s, OverallIterations: 40, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 720.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213701 SdHoareTripleChecker+Valid, 209.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213701 mSDsluCounter, 456340 SdHoareTripleChecker+Invalid, 185.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 397430 mSDsCounter, 2026 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74243 IncrementalHoareTripleChecker+Invalid, 76269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2026 mSolverCounterUnsat, 58910 mSDtfsCounter, 74243 mSolverCounterSat, 1.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8629 GetRequests, 6090 SyntacticMatches, 0 SemanticMatches, 2538 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351567 ImplicationChecksByTransitivity, 505.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26188occurred in iteration=39, InterpolantAutomatonStates: 2101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.5s AutomataMinimizationTime, 39 MinimizatonAttempts, 65530 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 56.3s InterpolantComputationTime, 4135 NumberOfCodeBlocks, 3719 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 6651 ConstructedInterpolants, 1841 QuantifiedInterpolants, 90623 SizeOfPredicates, 208 NumberOfNonLiveVariables, 8807 ConjunctsInSsa, 372 ConjunctsInUnsatCore, 60 InterpolantComputations, 20 PerfectInterpolantSequences, 3846/8658 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