/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 08:46:56,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 08:46:56,240 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 08:46:56,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 08:46:56,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 08:46:56,259 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 08:46:56,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 08:46:56,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 08:46:56,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 08:46:56,261 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 08:46:56,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 08:46:56,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 08:46:56,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 08:46:56,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 08:46:56,262 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 08:46:56,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 08:46:56,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 08:46:56,263 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 08:46:56,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 08:46:56,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 08:46:56,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 08:46:56,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 08:46:56,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 08:46:56,264 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 08:46:56,265 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 08:46:56,265 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 08:46:56,265 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 08:46:56,265 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 08:46:56,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 08:46:56,266 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 08:46:56,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 08:46:56,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 08:46:56,266 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 08:46:56,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 08:46:56,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 08:46:56,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 08:46:56,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 08:46:56,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 08:46:56,267 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 08:46:56,267 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 08:46:56,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 08:46:56,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 08:46:56,268 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 08:46:56,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 08:46:56,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 08:46:56,268 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 08:46:56,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 08:46:56,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 08:46:56,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 08:46:56,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 08:46:56,487 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 08:46:56,487 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 08:46:56,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2023-12-22 08:46:57,473 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 08:46:57,700 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 08:46:57,701 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2023-12-22 08:46:57,722 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5cb8982/9ef488a21ede4c33a35c9afc2f6db9e8/FLAG567b71a54 [2023-12-22 08:46:57,736 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5cb8982/9ef488a21ede4c33a35c9afc2f6db9e8 [2023-12-22 08:46:57,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 08:46:57,741 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 08:46:57,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 08:46:57,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 08:46:57,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 08:46:57,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:46:57" (1/1) ... [2023-12-22 08:46:57,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440af182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:57, skipping insertion in model container [2023-12-22 08:46:57,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:46:57" (1/1) ... [2023-12-22 08:46:57,788 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 08:46:57,944 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label38.c[3802,3815] [2023-12-22 08:46:58,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 08:46:58,079 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 08:46:58,101 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label38.c[3802,3815] [2023-12-22 08:46:58,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 08:46:58,201 INFO L206 MainTranslator]: Completed translation [2023-12-22 08:46:58,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58 WrapperNode [2023-12-22 08:46:58,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 08:46:58,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 08:46:58,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 08:46:58,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 08:46:58,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,269 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 596 [2023-12-22 08:46:58,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 08:46:58,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 08:46:58,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 08:46:58,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 08:46:58,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,297 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 08:46:58,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 08:46:58,334 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 08:46:58,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 08:46:58,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 08:46:58,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (1/1) ... [2023-12-22 08:46:58,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 08:46:58,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 08:46:58,365 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 08:46:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 08:46:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 08:46:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 08:46:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 08:46:58,369 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 08:46:58,446 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 08:46:58,448 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 08:47:00,789 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 08:47:00,840 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 08:47:00,840 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 08:47:00,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:47:00 BoogieIcfgContainer [2023-12-22 08:47:00,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 08:47:00,842 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 08:47:00,842 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 08:47:00,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 08:47:00,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:46:57" (1/3) ... [2023-12-22 08:47:00,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc745c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:47:00, skipping insertion in model container [2023-12-22 08:47:00,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:46:58" (2/3) ... [2023-12-22 08:47:00,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc745c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:47:00, skipping insertion in model container [2023-12-22 08:47:00,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:47:00" (3/3) ... [2023-12-22 08:47:00,847 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label38.c [2023-12-22 08:47:00,859 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 08:47:00,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 08:47:00,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 08:47:00,914 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;@5a73893b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 08:47:00,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 08:47:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:00,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-22 08:47:00,924 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:00,924 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] [2023-12-22 08:47:00,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:00,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1917649995, now seen corresponding path program 1 times [2023-12-22 08:47:00,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:00,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420643937] [2023-12-22 08:47:00,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:00,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 08:47:00,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:00,943 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 08:47:00,951 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 08:47:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:01,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 08:47:01,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:01,062 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 08:47:01,062 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:47:01,062 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:01,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420643937] [2023-12-22 08:47:01,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420643937] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:47:01,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:47:01,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 08:47:01,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206754857] [2023-12-22 08:47:01,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:01,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 08:47:01,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 08:47:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 08:47:01,099 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:01,131 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-12-22 08:47:01,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 08:47:01,135 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2023-12-22 08:47:01,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:01,141 INFO L225 Difference]: With dead ends: 287 [2023-12-22 08:47:01,142 INFO L226 Difference]: Without dead ends: 142 [2023-12-22 08:47:01,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 08:47:01,147 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:01,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 08:47:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-22 08:47:01,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-22 08:47:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 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 08:47:01,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-12-22 08:47:01,178 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 31 [2023-12-22 08:47:01,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:01,178 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-12-22 08:47:01,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:01,178 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-12-22 08:47:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-22 08:47:01,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:01,179 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] [2023-12-22 08:47:01,188 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 (2)] Ended with exit code 0 [2023-12-22 08:47:01,381 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 08:47:01,381 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:01,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:01,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1753469091, now seen corresponding path program 1 times [2023-12-22 08:47:01,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:01,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297458912] [2023-12-22 08:47:01,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:01,383 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 08:47:01,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:01,385 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 08:47:01,385 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 08:47:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:01,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:47:01,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:01,509 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 08:47:01,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:47:01,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:01,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [297458912] [2023-12-22 08:47:01,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [297458912] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:47:01,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:47:01,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 08:47:01,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897902921] [2023-12-22 08:47:01,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:01,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:47:01,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:01,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:47:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:47:01,512 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:04,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:04,392 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-12-22 08:47:04,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:47:04,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 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 31 [2023-12-22 08:47:04,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:04,395 INFO L225 Difference]: With dead ends: 422 [2023-12-22 08:47:04,395 INFO L226 Difference]: Without dead ends: 281 [2023-12-22 08:47:04,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 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 08:47:04,396 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 146 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:04,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 34 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-22 08:47:04,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-22 08:47:04,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-12-22 08:47:04,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.45) internal successors, (406), 280 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 406 transitions. [2023-12-22 08:47:04,413 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 406 transitions. Word has length 31 [2023-12-22 08:47:04,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:04,413 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 406 transitions. [2023-12-22 08:47:04,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:04,414 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 406 transitions. [2023-12-22 08:47:04,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-22 08:47:04,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:04,416 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:04,417 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 08:47:04,617 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 08:47:04,618 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:04,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:04,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1721586300, now seen corresponding path program 1 times [2023-12-22 08:47:04,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:04,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551279005] [2023-12-22 08:47:04,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:04,620 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 08:47:04,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:04,627 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 08:47:04,628 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 08:47:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:04,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:47:04,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:04,787 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:47:04,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:47:04,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:04,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551279005] [2023-12-22 08:47:04,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551279005] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:47:04,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:47:04,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 08:47:04,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496294637] [2023-12-22 08:47:04,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:04,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:47:04,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:47:04,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:47:04,795 INFO L87 Difference]: Start difference. First operand 281 states and 406 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:07,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:07,582 INFO L93 Difference]: Finished difference Result 839 states and 1215 transitions. [2023-12-22 08:47:07,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:47:07,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-22 08:47:07,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:07,585 INFO L225 Difference]: With dead ends: 839 [2023-12-22 08:47:07,586 INFO L226 Difference]: Without dead ends: 559 [2023-12-22 08:47:07,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:47:07,587 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:07,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 75 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 08:47:07,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-22 08:47:07,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-12-22 08:47:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2795698924731183) internal successors, (714), 558 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 714 transitions. [2023-12-22 08:47:07,623 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 714 transitions. Word has length 99 [2023-12-22 08:47:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:07,623 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 714 transitions. [2023-12-22 08:47:07,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:07,623 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 714 transitions. [2023-12-22 08:47:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-22 08:47:07,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:07,625 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:07,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 08:47:07,827 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 08:47:07,827 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:07,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash 770807425, now seen corresponding path program 1 times [2023-12-22 08:47:07,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:07,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104590513] [2023-12-22 08:47:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:07,829 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 08:47:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:07,830 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 08:47:07,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 08:47:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:07,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 08:47:07,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:08,264 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:47:08,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:47:10,937 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:47:10,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:10,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104590513] [2023-12-22 08:47:10,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104590513] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 08:47:10,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 08:47:10,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 08:47:10,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603949553] [2023-12-22 08:47:10,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:10,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 08:47:10,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:10,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 08:47:10,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 08:47:10,939 INFO L87 Difference]: Start difference. First operand 559 states and 714 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:26,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:47:30,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:47:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:42,210 INFO L93 Difference]: Finished difference Result 1553 states and 1999 transitions. [2023-12-22 08:47:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 08:47:42,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2023-12-22 08:47:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:42,218 INFO L225 Difference]: With dead ends: 1553 [2023-12-22 08:47:42,218 INFO L226 Difference]: Without dead ends: 976 [2023-12-22 08:47:42,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 08:47:42,220 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 77 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:42,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 14 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 31.2s Time] [2023-12-22 08:47:42,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-12-22 08:47:42,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 559. [2023-12-22 08:47:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2724014336917562) internal successors, (710), 558 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 710 transitions. [2023-12-22 08:47:42,233 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 710 transitions. Word has length 106 [2023-12-22 08:47:42,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:42,234 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 710 transitions. [2023-12-22 08:47:42,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:42,234 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 710 transitions. [2023-12-22 08:47:42,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-22 08:47:42,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:42,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 08:47:42,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-22 08:47:42,436 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 08:47:42,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:42,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:42,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1860507440, now seen corresponding path program 1 times [2023-12-22 08:47:42,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:42,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668260750] [2023-12-22 08:47:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:42,441 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 08:47:42,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:42,442 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 08:47:42,454 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 08:47:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:42,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:47:42,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:42,590 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:47:42,590 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:47:42,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:42,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668260750] [2023-12-22 08:47:42,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668260750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:47:42,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:47:42,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 08:47:42,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504608481] [2023-12-22 08:47:42,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:42,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:47:42,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:42,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:47:42,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:47:42,592 INFO L87 Difference]: Start difference. First operand 559 states and 710 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:45,330 INFO L93 Difference]: Finished difference Result 1395 states and 1821 transitions. [2023-12-22 08:47:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:47:45,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2023-12-22 08:47:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:45,334 INFO L225 Difference]: With dead ends: 1395 [2023-12-22 08:47:45,334 INFO L226 Difference]: Without dead ends: 837 [2023-12-22 08:47:45,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 08:47:45,335 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 76 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:45,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 211 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-22 08:47:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-12-22 08:47:45,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 698. [2023-12-22 08:47:45,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.2324246771879483) internal successors, (859), 697 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:45,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 859 transitions. [2023-12-22 08:47:45,344 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 859 transitions. Word has length 165 [2023-12-22 08:47:45,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:45,345 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 859 transitions. [2023-12-22 08:47:45,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:45,345 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 859 transitions. [2023-12-22 08:47:45,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-22 08:47:45,347 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:45,347 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 08:47:45,352 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 08:47:45,548 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 08:47:45,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:45,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:45,549 INFO L85 PathProgramCache]: Analyzing trace with hash -509995283, now seen corresponding path program 1 times [2023-12-22 08:47:45,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:45,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976730672] [2023-12-22 08:47:45,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:45,550 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 08:47:45,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:45,551 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 08:47:45,552 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 08:47:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:45,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:47:45,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:45,705 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 08:47:45,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:47:45,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:45,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976730672] [2023-12-22 08:47:45,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [976730672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:47:45,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:47:45,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 08:47:45,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236879583] [2023-12-22 08:47:45,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:45,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:47:45,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:45,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:47:45,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:47:45,707 INFO L87 Difference]: Start difference. First operand 698 states and 859 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:47,648 INFO L93 Difference]: Finished difference Result 1534 states and 1865 transitions. [2023-12-22 08:47:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:47:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 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 172 [2023-12-22 08:47:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:47,651 INFO L225 Difference]: With dead ends: 1534 [2023-12-22 08:47:47,651 INFO L226 Difference]: Without dead ends: 837 [2023-12-22 08:47:47,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 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 08:47:47,652 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:47,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 80 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-22 08:47:47,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-12-22 08:47:47,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2023-12-22 08:47:47,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.1985645933014355) internal successors, (1002), 836 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:47,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1002 transitions. [2023-12-22 08:47:47,662 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1002 transitions. Word has length 172 [2023-12-22 08:47:47,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:47,663 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1002 transitions. [2023-12-22 08:47:47,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 2 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:47,663 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1002 transitions. [2023-12-22 08:47:47,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-22 08:47:47,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:47,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:47,668 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 08:47:47,868 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 08:47:47,868 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:47,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash 762401230, now seen corresponding path program 1 times [2023-12-22 08:47:47,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:47,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365536253] [2023-12-22 08:47:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:47,870 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 08:47:47,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:47,871 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 08:47:47,873 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 08:47:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:47,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:47:47,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-22 08:47:47,997 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:47:47,998 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:47,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365536253] [2023-12-22 08:47:47,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365536253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:47:47,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:47:47,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 08:47:47,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181368670] [2023-12-22 08:47:47,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:47,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:47:47,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:47,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:47:47,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:47:47,999 INFO L87 Difference]: Start difference. First operand 837 states and 1002 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:50,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:50,545 INFO L93 Difference]: Finished difference Result 1812 states and 2232 transitions. [2023-12-22 08:47:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:47:50,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 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 210 [2023-12-22 08:47:50,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:50,548 INFO L225 Difference]: With dead ends: 1812 [2023-12-22 08:47:50,548 INFO L226 Difference]: Without dead ends: 1115 [2023-12-22 08:47:50,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 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 08:47:50,550 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:50,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 207 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-22 08:47:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2023-12-22 08:47:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2023-12-22 08:47:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.180430879712747) internal successors, (1315), 1114 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1315 transitions. [2023-12-22 08:47:50,563 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1315 transitions. Word has length 210 [2023-12-22 08:47:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:50,563 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1315 transitions. [2023-12-22 08:47:50,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:50,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1315 transitions. [2023-12-22 08:47:50,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-22 08:47:50,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:50,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:47:50,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-22 08:47:50,768 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 08:47:50,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:50,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:50,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1243709035, now seen corresponding path program 1 times [2023-12-22 08:47:50,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:50,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905410200] [2023-12-22 08:47:50,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:50,770 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 08:47:50,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:50,771 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 08:47:50,772 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 08:47:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:50,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 08:47:50,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:47:50,954 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 08:47:50,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:47:50,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905410200] [2023-12-22 08:47:50,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905410200] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 08:47:50,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 08:47:50,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 08:47:50,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919743449] [2023-12-22 08:47:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:47:50,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:47:50,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:47:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:47:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 08:47:50,956 INFO L87 Difference]: Start difference. First operand 1115 states and 1315 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:47:53,362 INFO L93 Difference]: Finished difference Result 2368 states and 2888 transitions. [2023-12-22 08:47:53,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:47:53,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2023-12-22 08:47:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:47:53,369 INFO L225 Difference]: With dead ends: 2368 [2023-12-22 08:47:53,369 INFO L226 Difference]: Without dead ends: 1393 [2023-12-22 08:47:53,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 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 08:47:53,370 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 75 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-22 08:47:53,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 192 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-22 08:47:53,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-12-22 08:47:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1393. [2023-12-22 08:47:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 1.1767241379310345) internal successors, (1638), 1392 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1638 transitions. [2023-12-22 08:47:53,405 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1638 transitions. Word has length 220 [2023-12-22 08:47:53,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:47:53,406 INFO L495 AbstractCegarLoop]: Abstraction has 1393 states and 1638 transitions. [2023-12-22 08:47:53,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:47:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1638 transitions. [2023-12-22 08:47:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-22 08:47:53,408 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:47:53,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 08:47:53,422 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 08:47:53,615 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 08:47:53,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:47:53,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:47:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1790562660, now seen corresponding path program 1 times [2023-12-22 08:47:53,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:47:53,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860500929] [2023-12-22 08:47:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:47:53,617 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 08:47:53,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:47:53,618 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 08:47:53,636 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 (10)] Waiting until timeout for monitored process [2023-12-22 08:47:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:47:53,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 08:47:53,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:47:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:47:55,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:48:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:48:32,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:48:32,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860500929] [2023-12-22 08:48:32,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860500929] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:48:32,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:48:32,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 08:48:32,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622037096] [2023-12-22 08:48:32,662 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:48:32,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 08:48:32,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:48:32,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 08:48:32,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-22 08:48:32,664 INFO L87 Difference]: Start difference. First operand 1393 states and 1638 transitions. Second operand has 9 states, 9 states have (on average 60.333333333333336) internal successors, (543), 8 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:48:45,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:48:51,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:48:57,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:48:58,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:01,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:03,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:04,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:09,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:15,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:19,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:21,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:22,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:25,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:30,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:31,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:34,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:40,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:42,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:49:45,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:06,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:13,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:22,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:23,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:25,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:27,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:29,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:32,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:34,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:38,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:41,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:45,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:49,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:50:56,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:01,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:02,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:04,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:17,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:20,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:24,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:25,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:34,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:36,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:41,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:46,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:47,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:51,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:51:54,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:00,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:02,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:06,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:09,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:20,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:22,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:24,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:27,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:30,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:34,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:37,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:39,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:40,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:43,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:44,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:46,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:56,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:57,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:52:59,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:03,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:05,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:10,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:14,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:22,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:24,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:53:25,757 INFO L93 Difference]: Finished difference Result 5460 states and 6580 transitions. [2023-12-22 08:53:25,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-22 08:53:25,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 60.333333333333336) internal successors, (543), 8 states have internal predecessors, (543), 0 states have call successors, (0), 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 279 [2023-12-22 08:53:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:53:25,766 INFO L225 Difference]: With dead ends: 5460 [2023-12-22 08:53:25,766 INFO L226 Difference]: Without dead ends: 3758 [2023-12-22 08:53:25,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-22 08:53:25,770 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1273 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 270.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1273 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 3310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 287.3s IncrementalHoareTripleChecker+Time [2023-12-22 08:53:25,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1273 Valid, 73 Invalid, 3310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [885 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 287.3s Time] [2023-12-22 08:53:25,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2023-12-22 08:53:25,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 2505. [2023-12-22 08:53:25,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2505 states, 2504 states have (on average 1.2044728434504792) internal successors, (3016), 2504 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:53:25,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2505 states to 2505 states and 3016 transitions. [2023-12-22 08:53:25,817 INFO L78 Accepts]: Start accepts. Automaton has 2505 states and 3016 transitions. Word has length 279 [2023-12-22 08:53:25,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:53:25,818 INFO L495 AbstractCegarLoop]: Abstraction has 2505 states and 3016 transitions. [2023-12-22 08:53:25,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 60.333333333333336) internal successors, (543), 8 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:53:25,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2505 states and 3016 transitions. [2023-12-22 08:53:25,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-22 08:53:25,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:53:25,821 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 08:53:25,832 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 08:53:26,025 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 08:53:26,028 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:53:26,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:53:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash 910747453, now seen corresponding path program 1 times [2023-12-22 08:53:26,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:53:26,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336639911] [2023-12-22 08:53:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:53:26,030 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 08:53:26,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:53:26,031 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 08:53:26,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 08:53:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:53:26,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 08:53:26,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:53:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 227 proven. 82 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 08:53:26,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:53:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 227 proven. 82 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 08:53:35,970 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:53:35,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336639911] [2023-12-22 08:53:35,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336639911] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:53:35,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:53:35,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 08:53:35,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923543907] [2023-12-22 08:53:35,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:53:35,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 08:53:35,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:53:35,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 08:53:35,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 08:53:35,972 INFO L87 Difference]: Start difference. First operand 2505 states and 3016 transitions. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 5 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:53:50,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:54,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:58,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:53:59,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:54:03,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:54:07,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:54:11,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:54:20,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:54:44,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:54:48,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:54:56,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:55:00,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:55:07,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:55:07,045 INFO L93 Difference]: Finished difference Result 5704 states and 6916 transitions. [2023-12-22 08:55:07,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 08:55:07,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 5 states have internal predecessors, (476), 0 states have call successors, (0), 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 311 [2023-12-22 08:55:07,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:55:07,061 INFO L225 Difference]: With dead ends: 5704 [2023-12-22 08:55:07,061 INFO L226 Difference]: Without dead ends: 3617 [2023-12-22 08:55:07,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 08:55:07,064 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 306 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.6s IncrementalHoareTripleChecker+Time [2023-12-22 08:55:07,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 26 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 90.6s Time] [2023-12-22 08:55:07,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2023-12-22 08:55:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 2783. [2023-12-22 08:55:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2782 states have (on average 1.1739755571531272) internal successors, (3266), 2782 states have internal predecessors, (3266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:55:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3266 transitions. [2023-12-22 08:55:07,102 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3266 transitions. Word has length 311 [2023-12-22 08:55:07,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:55:07,102 INFO L495 AbstractCegarLoop]: Abstraction has 2783 states and 3266 transitions. [2023-12-22 08:55:07,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 5 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:55:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3266 transitions. [2023-12-22 08:55:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-12-22 08:55:07,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:55:07,107 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:55:07,115 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 08:55:07,312 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 08:55:07,313 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:55:07,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:55:07,313 INFO L85 PathProgramCache]: Analyzing trace with hash 433023515, now seen corresponding path program 1 times [2023-12-22 08:55:07,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:55:07,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974209820] [2023-12-22 08:55:07,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:55:07,315 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 08:55:07,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:55:07,316 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 08:55:07,339 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 (12)] Waiting until timeout for monitored process [2023-12-22 08:55:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:55:07,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 08:55:07,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:55:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 89 proven. 250 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:55:07,974 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:55:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-22 08:55:08,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:55:08,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974209820] [2023-12-22 08:55:08,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [974209820] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 08:55:08,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 08:55:08,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-22 08:55:08,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241075925] [2023-12-22 08:55:08,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 08:55:08,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 08:55:08,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:55:08,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 08:55:08,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 08:55:08,324 INFO L87 Difference]: Start difference. First operand 2783 states and 3266 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:55:17,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:55:17,704 INFO L93 Difference]: Finished difference Result 6260 states and 7464 transitions. [2023-12-22 08:55:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 08:55:17,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2023-12-22 08:55:17,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:55:17,716 INFO L225 Difference]: With dead ends: 6260 [2023-12-22 08:55:17,716 INFO L226 Difference]: Without dead ends: 3895 [2023-12-22 08:55:17,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 658 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-22 08:55:17,718 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 55 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-22 08:55:17,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 39 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-22 08:55:17,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3895 states. [2023-12-22 08:55:17,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3895 to 3617. [2023-12-22 08:55:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 3616 states have (on average 1.1722898230088497) internal successors, (4239), 3616 states have internal predecessors, (4239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:55:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 4239 transitions. [2023-12-22 08:55:17,758 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 4239 transitions. Word has length 330 [2023-12-22 08:55:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:55:17,759 INFO L495 AbstractCegarLoop]: Abstraction has 3617 states and 4239 transitions. [2023-12-22 08:55:17,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:55:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 4239 transitions. [2023-12-22 08:55:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-22 08:55:17,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:55:17,763 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:55:17,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-22 08:55:17,966 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 08:55:17,969 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:55:17,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:55:17,969 INFO L85 PathProgramCache]: Analyzing trace with hash -415788225, now seen corresponding path program 1 times [2023-12-22 08:55:17,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:55:17,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485968078] [2023-12-22 08:55:17,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:55:17,970 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 08:55:17,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:55:17,972 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 08:55:17,974 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 08:55:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:55:18,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 08:55:18,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:55:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 11 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:55:18,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:55:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 338 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:55:24,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:55:24,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485968078] [2023-12-22 08:55:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485968078] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:55:24,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:55:24,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-22 08:55:24,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535175894] [2023-12-22 08:55:24,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:55:24,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-22 08:55:24,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:55:24,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-22 08:55:24,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-22 08:55:24,012 INFO L87 Difference]: Start difference. First operand 3617 states and 4239 transitions. Second operand has 10 states, 10 states have (on average 71.4) internal successors, (714), 10 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:55:52,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:56:25,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:56:25,454 INFO L93 Difference]: Finished difference Result 8795 states and 10402 transitions. [2023-12-22 08:56:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-22 08:56:25,454 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 71.4) internal successors, (714), 10 states have internal predecessors, (714), 0 states have call successors, (0), 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 367 [2023-12-22 08:56:25,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:56:25,464 INFO L225 Difference]: With dead ends: 8795 [2023-12-22 08:56:25,465 INFO L226 Difference]: Without dead ends: 4868 [2023-12-22 08:56:25,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 731 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2023-12-22 08:56:25,467 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 973 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5101 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 5636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 5101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.8s IncrementalHoareTripleChecker+Time [2023-12-22 08:56:25,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 122 Invalid, 5636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 5101 Invalid, 0 Unknown, 0 Unchecked, 60.8s Time] [2023-12-22 08:56:25,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2023-12-22 08:56:25,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4868. [2023-12-22 08:56:25,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4868 states, 4867 states have (on average 1.1218409697965892) internal successors, (5460), 4867 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:56:25,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 5460 transitions. [2023-12-22 08:56:25,520 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 5460 transitions. Word has length 367 [2023-12-22 08:56:25,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:56:25,521 INFO L495 AbstractCegarLoop]: Abstraction has 4868 states and 5460 transitions. [2023-12-22 08:56:25,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 71.4) internal successors, (714), 10 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:56:25,521 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 5460 transitions. [2023-12-22 08:56:25,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2023-12-22 08:56:25,528 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:56:25,528 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 08:56:25,536 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 08:56:25,735 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 08:56:25,736 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:56:25,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:56:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1357246593, now seen corresponding path program 1 times [2023-12-22 08:56:25,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:56:25,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290903026] [2023-12-22 08:56:25,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:56:25,738 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 08:56:25,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:56:25,739 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 08:56:25,740 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 08:56:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:56:25,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 08:56:25,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:56:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 422 proven. 283 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 08:56:26,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:56:31,608 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 621 proven. 84 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-22 08:56:31,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:56:31,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290903026] [2023-12-22 08:56:31,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290903026] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:56:31,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:56:31,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 08:56:31,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026714663] [2023-12-22 08:56:31,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:56:31,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 08:56:31,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:56:31,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 08:56:31,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-22 08:56:31,610 INFO L87 Difference]: Start difference. First operand 4868 states and 5460 transitions. Second operand has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:08,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:57:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:57:25,793 INFO L93 Difference]: Finished difference Result 9457 states and 10682 transitions. [2023-12-22 08:57:25,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 08:57:25,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 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 502 [2023-12-22 08:57:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:57:25,805 INFO L225 Difference]: With dead ends: 9457 [2023-12-22 08:57:25,805 INFO L226 Difference]: Without dead ends: 5424 [2023-12-22 08:57:25,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 998 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-22 08:57:25,809 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 278 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.9s IncrementalHoareTripleChecker+Time [2023-12-22 08:57:25,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 44 Invalid, 2339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 53.9s Time] [2023-12-22 08:57:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5424 states. [2023-12-22 08:57:25,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5424 to 5146. [2023-12-22 08:57:25,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 5145 states have (on average 1.1226433430515064) internal successors, (5776), 5145 states have internal predecessors, (5776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 5776 transitions. [2023-12-22 08:57:25,892 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 5776 transitions. Word has length 502 [2023-12-22 08:57:25,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:57:25,893 INFO L495 AbstractCegarLoop]: Abstraction has 5146 states and 5776 transitions. [2023-12-22 08:57:25,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.28571428571429) internal successors, (807), 7 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 5776 transitions. [2023-12-22 08:57:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-12-22 08:57:25,901 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:57:25,901 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 08:57:25,906 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 08:57:26,106 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 08:57:26,107 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:57:26,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:57:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash 967603405, now seen corresponding path program 1 times [2023-12-22 08:57:26,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:57:26,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088143223] [2023-12-22 08:57:26,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:57:26,109 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 08:57:26,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:57:26,111 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 08:57:26,112 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 08:57:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:57:26,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 08:57:26,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:57:28,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 168 proven. 813 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-22 08:57:28,626 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:57:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 731 proven. 168 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2023-12-22 08:57:30,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:57:30,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088143223] [2023-12-22 08:57:30,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088143223] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:57:30,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:57:30,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2023-12-22 08:57:30,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763518324] [2023-12-22 08:57:30,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:57:30,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 08:57:30,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:57:30,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 08:57:30,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-22 08:57:30,852 INFO L87 Difference]: Start difference. First operand 5146 states and 5776 transitions. Second operand has 8 states, 8 states have (on average 87.625) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:41,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 08:57:41,893 INFO L93 Difference]: Finished difference Result 10448 states and 11785 transitions. [2023-12-22 08:57:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-22 08:57:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 87.625) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 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 568 [2023-12-22 08:57:41,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 08:57:41,905 INFO L225 Difference]: With dead ends: 10448 [2023-12-22 08:57:41,905 INFO L226 Difference]: Without dead ends: 6276 [2023-12-22 08:57:41,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1146 GetRequests, 1134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-12-22 08:57:41,909 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 324 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4919 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 5150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 4919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-22 08:57:41,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 117 Invalid, 5150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 4919 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-22 08:57:41,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6276 states. [2023-12-22 08:57:41,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6276 to 4868. [2023-12-22 08:57:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4868 states, 4867 states have (on average 1.0780768440517772) internal successors, (5247), 4867 states have internal predecessors, (5247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:41,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 5247 transitions. [2023-12-22 08:57:41,976 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 5247 transitions. Word has length 568 [2023-12-22 08:57:41,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 08:57:41,976 INFO L495 AbstractCegarLoop]: Abstraction has 4868 states and 5247 transitions. [2023-12-22 08:57:41,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.625) internal successors, (701), 8 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:57:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 5247 transitions. [2023-12-22 08:57:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2023-12-22 08:57:41,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 08:57:41,983 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 08:57:41,992 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 08:57:42,189 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 08:57:42,190 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 08:57:42,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 08:57:42,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2131398272, now seen corresponding path program 1 times [2023-12-22 08:57:42,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 08:57:42,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693509340] [2023-12-22 08:57:42,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 08:57:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 08:57:42,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 08:57:42,193 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 08:57:42,198 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 08:57:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 08:57:42,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-22 08:57:42,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 08:57:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 155 proven. 938 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 08:57:48,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 08:58:35,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 731 proven. 271 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-22 08:58:35,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 08:58:35,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693509340] [2023-12-22 08:58:35,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693509340] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 08:58:35,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 08:58:35,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2023-12-22 08:58:35,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439880587] [2023-12-22 08:58:35,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 08:58:35,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-22 08:58:35,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 08:58:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-22 08:58:35,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-12-22 08:58:35,312 INFO L87 Difference]: Start difference. First operand 4868 states and 5247 transitions. Second operand has 20 states, 20 states have (on average 51.0) internal successors, (1020), 20 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 08:58:55,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:02,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:04,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 08:59:55,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:00:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:00:00,176 INFO L93 Difference]: Finished difference Result 9646 states and 10429 transitions. [2023-12-22 09:00:00,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-22 09:00:00,177 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 51.0) internal successors, (1020), 20 states have internal predecessors, (1020), 0 states have call successors, (0), 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 577 [2023-12-22 09:00:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:00:00,183 INFO L225 Difference]: With dead ends: 9646 [2023-12-22 09:00:00,184 INFO L226 Difference]: Without dead ends: 6030 [2023-12-22 09:00:00,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1181 GetRequests, 1142 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=425, Invalid=1215, Unknown=0, NotChecked=0, Total=1640 [2023-12-22 09:00:00,186 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 388 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 5980 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 6201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 5980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.3s IncrementalHoareTripleChecker+Time [2023-12-22 09:00:00,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 149 Invalid, 6201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 5980 Invalid, 0 Unknown, 0 Unchecked, 74.3s Time] [2023-12-22 09:00:00,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6030 states. [2023-12-22 09:00:00,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 4551. [2023-12-22 09:00:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4551 states, 4550 states have (on average 1.0687912087912088) internal successors, (4863), 4550 states have internal predecessors, (4863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:00:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 4863 transitions. [2023-12-22 09:00:00,250 INFO L78 Accepts]: Start accepts. Automaton has 4551 states and 4863 transitions. Word has length 577 [2023-12-22 09:00:00,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:00:00,250 INFO L495 AbstractCegarLoop]: Abstraction has 4551 states and 4863 transitions. [2023-12-22 09:00:00,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 51.0) internal successors, (1020), 20 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:00:00,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4551 states and 4863 transitions. [2023-12-22 09:00:00,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2023-12-22 09:00:00,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 09:00:00,256 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:00:00,268 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 09:00:00,462 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 09:00:00,463 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 09:00:00,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 09:00:00,463 INFO L85 PathProgramCache]: Analyzing trace with hash -587546881, now seen corresponding path program 1 times [2023-12-22 09:00:00,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 09:00:00,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681770833] [2023-12-22 09:00:00,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 09:00:00,465 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 09:00:00,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 09:00:00,466 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 09:00:00,469 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 09:00:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 09:00:00,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 09:00:00,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 09:00:01,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1342 backedges. 744 proven. 403 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-22 09:00:01,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 09:00:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1342 backedges. 833 proven. 314 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-22 09:00:10,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 09:00:10,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681770833] [2023-12-22 09:00:10,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681770833] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 09:00:10,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 09:00:10,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 09:00:10,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970597042] [2023-12-22 09:00:10,229 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 09:00:10,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 09:00:10,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 09:00:10,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 09:00:10,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-22 09:00:10,232 INFO L87 Difference]: Start difference. First operand 4551 states and 4863 transitions. Second operand has 8 states, 8 states have (on average 90.5) internal successors, (724), 7 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:00:26,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 09:01:04,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 09:01:04,233 INFO L93 Difference]: Finished difference Result 7718 states and 8241 transitions. [2023-12-22 09:01:04,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 09:01:04,240 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 90.5) internal successors, (724), 7 states have internal predecessors, (724), 0 states have call successors, (0), 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 594 [2023-12-22 09:01:04,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 09:01:04,241 INFO L225 Difference]: With dead ends: 7718 [2023-12-22 09:01:04,241 INFO L226 Difference]: Without dead ends: 0 [2023-12-22 09:01:04,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1180 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-22 09:01:04,246 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 414 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2023-12-22 09:01:04,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 36 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 53.5s Time] [2023-12-22 09:01:04,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-22 09:01:04,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-22 09:01:04,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:01:04,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-22 09:01:04,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 594 [2023-12-22 09:01:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 09:01:04,247 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-22 09:01:04,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 90.5) internal successors, (724), 7 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 09:01:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-22 09:01:04,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-22 09:01:04,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 09:01:04,259 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 09:01:04,454 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 09:01:04,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-22 09:01:31,162 WARN L293 SmtUtils]: Spent 26.15s on a formula simplification. DAG size of input: 263 DAG size of output: 76 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-22 09:01:31,169 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2023-12-22 09:01:31,170 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,171 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,172 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2023-12-22 09:01:31,173 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 602) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2023-12-22 09:01:31,174 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2023-12-22 09:01:31,175 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2023-12-22 09:01:31,176 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse14 (bvsdiv ~a1~0 (_ bv5 32)))) (let ((.cse5 (bvsdiv (bvmul .cse14 (_ bv5 32)) (_ bv5 32))) (.cse7 (bvslt (_ bv218 32) ~a1~0))) (let ((.cse4 (not .cse7)) (.cse10 (= (_ bv8 32) ~a19~0)) (.cse12 (= (_ bv0 32) ~a10~0)) (.cse11 (bvsle (bvadd (_ bv4294422133 32) (bvsdiv (bvadd (_ bv4547052 32) (bvmul .cse5 (_ bv9 32))) (_ bv10 32))) (_ bv4294967283 32))) (.cse8 (= (_ bv10 32) ~a19~0)) (.cse3 (= (_ bv1 32) ~a10~0)) (.cse0 (bvslt (_ bv218 32) (bvadd (_ bv167120 32) .cse14))) (.cse2 (= (_ bv0 32) ~a12~0)) (.cse1 (= (_ bv14 32) ~a4~0)) (.cse6 (= ~a19~0 (_ bv9 32))) (.cse9 (not (bvslt (_ bv218 32) (bvadd (_ bv4294367077 32) ~a1~0)))) (.cse13 (= (_ bv2 32) ~a10~0))) (or (and .cse0 .cse1 .cse2 (not .cse3) .cse4) (and (not (bvslt (_ bv218 32) (bvadd (_ bv4294872305 32) .cse5))) .cse6 .cse7 .cse1 .cse2) (and .cse0 .cse8 .cse4 .cse3) (and .cse9 .cse6 .cse7 .cse1 .cse2 (= (_ bv3 32) ~a10~0)) (and .cse0 .cse6 .cse1 .cse2 .cse4) (and .cse9 .cse6 .cse7 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse10 (bvsle (bvadd (_ bv4294422133 32) (bvsdiv (bvmul ~a1~0 (_ bv9 32)) (_ bv10 32))) (_ bv4294967283 32)) .cse11) (and .cse7 .cse10 (not .cse12)) (and .cse9 .cse6 .cse12) (and .cse9 (or (and .cse1 .cse2 .cse3 .cse11 (not (bvsle ~a1~0 (_ bv4294967283 32)))) (and .cse7 .cse1 .cse2 .cse8 .cse3))) (and .cse0 .cse13 (or (not .cse2) (not .cse1) (not .cse6))) (and .cse9 .cse13))))) [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,177 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,178 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,178 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,178 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2023-12-22 09:01:31,178 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2023-12-22 09:01:31,178 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2023-12-22 09:01:31,178 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2023-12-22 09:01:31,180 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 09:01:31,182 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 09:01:31,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 09:01:31 BoogieIcfgContainer [2023-12-22 09:01:31,202 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 09:01:31,202 INFO L158 Benchmark]: Toolchain (without parser) took 873461.60ms. Allocated memory was 181.4MB in the beginning and 300.9MB in the end (delta: 119.5MB). Free memory was 135.1MB in the beginning and 173.3MB in the end (delta: -38.3MB). Peak memory consumption was 181.5MB. Max. memory is 8.0GB. [2023-12-22 09:01:31,202 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 181.4MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 09:01:31,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.08ms. Allocated memory is still 181.4MB. Free memory was 134.6MB in the beginning and 103.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-22 09:01:31,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.40ms. Allocated memory is still 181.4MB. Free memory was 103.1MB in the beginning and 97.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-22 09:01:31,203 INFO L158 Benchmark]: Boogie Preprocessor took 63.49ms. Allocated memory is still 181.4MB. Free memory was 97.8MB in the beginning and 92.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-22 09:01:31,203 INFO L158 Benchmark]: RCFGBuilder took 2506.33ms. Allocated memory is still 181.4MB. Free memory was 92.1MB in the beginning and 68.0MB in the end (delta: 24.0MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. [2023-12-22 09:01:31,203 INFO L158 Benchmark]: TraceAbstraction took 870360.29ms. Allocated memory was 181.4MB in the beginning and 300.9MB in the end (delta: 119.5MB). Free memory was 67.0MB in the beginning and 173.3MB in the end (delta: -106.3MB). Peak memory consumption was 112.9MB. Max. memory is 8.0GB. [2023-12-22 09:01:31,204 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 181.4MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 463.08ms. Allocated memory is still 181.4MB. Free memory was 134.6MB in the beginning and 103.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.40ms. Allocated memory is still 181.4MB. Free memory was 103.1MB in the beginning and 97.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.49ms. Allocated memory is still 181.4MB. Free memory was 97.8MB in the beginning and 92.1MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2506.33ms. Allocated memory is still 181.4MB. Free memory was 92.1MB in the beginning and 68.0MB in the end (delta: 24.0MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. * TraceAbstraction took 870360.29ms. Allocated memory was 181.4MB in the beginning and 300.9MB in the end (delta: 119.5MB). Free memory was 67.0MB in the beginning and 173.3MB in the end (delta: -106.3MB). Peak memory consumption was 112.9MB. 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 - PositiveResult [Line: 110]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 870.3s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 705.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 26.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4640 SdHoareTripleChecker+Valid, 686.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4640 mSDsluCounter, 1636 SdHoareTripleChecker+Invalid, 634.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 439 mSDsCounter, 3385 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26530 IncrementalHoareTripleChecker+Invalid, 29915 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3385 mSolverCounterUnsat, 1197 mSDtfsCounter, 26530 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8240 GetRequests, 8125 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 21.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5146occurred in iteration=13, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 6086 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 52 NumberOfFragments, 280 HoareAnnotationTreeSize, 1 FormulaSimplifications, 22959 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 1 FormulaSimplificationsInter, 6707 FormulaSimplificationTreeSizeReductionInter, 26.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 132.1s InterpolantComputationTime, 4562 NumberOfCodeBlocks, 4562 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 8171 ConstructedInterpolants, 0 QuantifiedInterpolants, 61572 SizeOfPredicates, 25 NumberOfNonLiveVariables, 5405 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 25 InterpolantComputations, 9 PerfectInterpolantSequences, 7068/11515 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((((((((((((218 < ((167120 + (a1 / 5)) % 4294967296)) && (14 == a4)) && (0 == a12)) && !((1 == a10))) && !((218 < a1))) || ((((!((218 < ((-94991 + (((a1 / 5) * 5) / 5)) % 4294967296))) && (a19 == 9)) && (218 < a1)) && (14 == a4)) && (0 == a12))) || ((((218 < ((167120 + (a1 / 5)) % 4294967296)) && (10 == a19)) && !((218 < a1))) && (1 == a10))) || (((((!((218 < ((-600219 + a1) % 4294967296))) && (a19 == 9)) && (218 < a1)) && (14 == a4)) && (0 == a12)) && (3 == a10))) || (((((218 < ((167120 + (a1 / 5)) % 4294967296)) && (a19 == 9)) && (14 == a4)) && (0 == a12)) && !((218 < a1)))) || (((((!((218 < ((-600219 + a1) % 4294967296))) && (a19 == 9)) && (218 < a1)) && (14 == a4)) && (0 == a12)) && (1 == a10))) || (((((14 == a4) && (0 == a12)) && (8 == a19)) && (((-545163 + ((a1 * 9) / 10)) % 4294967296) <= -13)) && (((-545163 + (((4547052 + ((((a1 / 5) * 5) / 5) * 9)) % 4294967296) / 10)) % 4294967296) <= -13))) || (((218 < a1) && (8 == a19)) && !((0 == a10)))) || ((!((218 < ((-600219 + a1) % 4294967296))) && (a19 == 9)) && (0 == a10))) || (!((218 < ((-600219 + a1) % 4294967296))) && ((((((14 == a4) && (0 == a12)) && (1 == a10)) && (((-545163 + (((4547052 + ((((a1 / 5) * 5) / 5) * 9)) % 4294967296) / 10)) % 4294967296) <= -13)) && !((a1 <= -13))) || (((((218 < a1) && (14 == a4)) && (0 == a12)) && (10 == a19)) && (1 == a10))))) || (((218 < ((167120 + (a1 / 5)) % 4294967296)) && (2 == a10)) && ((!((0 == a12)) || !((14 == a4))) || !((a19 == 9))))) || (!((218 < ((-600219 + a1) % 4294967296))) && (2 == a10))) RESULT: Ultimate proved your program to be correct! [2023-12-22 09:01:31,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...