/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/Problem19_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 17:09:11,024 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 17:09:11,103 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 17:09:11,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 17:09:11,107 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 17:09:11,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 17:09:11,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 17:09:11,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 17:09:11,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 17:09:11,133 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 17:09:11,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 17:09:11,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 17:09:11,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 17:09:11,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 17:09:11,135 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 17:09:11,135 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 17:09:11,136 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 17:09:11,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 17:09:11,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 17:09:11,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 17:09:11,136 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 17:09:11,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 17:09:11,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 17:09:11,137 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 17:09:11,137 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 17:09:11,137 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 17:09:11,137 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 17:09:11,137 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 17:09:11,137 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 17:09:11,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 17:09:11,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 17:09:11,138 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 17:09:11,138 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 17:09:11,139 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 17:09:11,139 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:09:11,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 17:09:11,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 17:09:11,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 17:09:11,139 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 17:09:11,139 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 17:09:11,139 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 17:09:11,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 17:09:11,140 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 17:09:11,140 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 17:09:11,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 17:09:11,140 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 17:09:11,140 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 17:09:11,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 17:09:11,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 17:09:11,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 17:09:11,316 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 17:09:11,317 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 17:09:11,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label08.c [2023-12-22 17:09:12,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 17:09:12,713 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 17:09:12,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label08.c [2023-12-22 17:09:12,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c76b176/f08a971688b64d66a1601bd82cffc254/FLAG6628c9365 [2023-12-22 17:09:12,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c76b176/f08a971688b64d66a1601bd82cffc254 [2023-12-22 17:09:12,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 17:09:12,771 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 17:09:12,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 17:09:12,773 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 17:09:12,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 17:09:12,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:09:12" (1/1) ... [2023-12-22 17:09:12,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66344d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:12, skipping insertion in model container [2023-12-22 17:09:12,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:09:12" (1/1) ... [2023-12-22 17:09:12,922 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 17:09:13,139 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/Problem19_label08.c[5076,5089] [2023-12-22 17:09:14,147 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:09:14,161 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 17:09:14,180 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/Problem19_label08.c[5076,5089] [2023-12-22 17:09:14,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 17:09:14,794 INFO L206 MainTranslator]: Completed translation [2023-12-22 17:09:14,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14 WrapperNode [2023-12-22 17:09:14,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 17:09:14,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 17:09:14,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 17:09:14,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 17:09:14,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:14,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,070 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9424 [2023-12-22 17:09:15,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 17:09:15,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 17:09:15,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 17:09:15,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 17:09:15,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,133 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,227 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 17:09:15,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,369 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 17:09:15,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 17:09:15,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 17:09:15,590 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 17:09:15,591 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (1/1) ... [2023-12-22 17:09:15,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 17:09:15,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 17:09:15,615 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 17:09:15,623 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 17:09:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 17:09:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 17:09:15,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 17:09:15,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 17:09:15,686 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 17:09:15,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 17:10:16,166 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 17:10:16,226 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 17:10:16,226 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 17:10:16,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:10:16 BoogieIcfgContainer [2023-12-22 17:10:16,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 17:10:16,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 17:10:16,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 17:10:16,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 17:10:16,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:09:12" (1/3) ... [2023-12-22 17:10:16,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4913ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:10:16, skipping insertion in model container [2023-12-22 17:10:16,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:09:14" (2/3) ... [2023-12-22 17:10:16,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4913ba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:10:16, skipping insertion in model container [2023-12-22 17:10:16,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:10:16" (3/3) ... [2023-12-22 17:10:16,232 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label08.c [2023-12-22 17:10:16,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 17:10:16,243 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 17:10:16,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 17:10:16,310 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;@14458e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 17:10:16,310 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 17:10:16,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states 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 17:10:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-22 17:10:16,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:10:16,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:10:16,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:10:16,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:10:16,332 INFO L85 PathProgramCache]: Analyzing trace with hash -775303138, now seen corresponding path program 1 times [2023-12-22 17:10:16,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:10:16,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [131005654] [2023-12-22 17:10:16,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:10:16,355 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 17:10:16,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:10:16,358 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 17:10:16,362 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 17:10:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:10:16,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 17:10:16,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:10:16,419 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 17:10:16,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:10:16,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:10:16,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [131005654] [2023-12-22 17:10:16,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [131005654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:10:16,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:10:16,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:10:16,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314202233] [2023-12-22 17:10:16,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:10:16,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 17:10:16,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:10:16,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 17:10:16,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 17:10:16,446 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 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 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states 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 17:10:16,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:10:16,630 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-22 17:10:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 17:10:16,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2023-12-22 17:10:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:10:16,650 INFO L225 Difference]: With dead ends: 3371 [2023-12-22 17:10:16,650 INFO L226 Difference]: Without dead ends: 1684 [2023-12-22 17:10:16,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 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 17:10:16,660 INFO L413 NwaCegarLoop]: 3138 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, 3138 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 17:10:16,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 17:10:16,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-22 17:10:16,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-22 17:10:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states 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 17:10:16,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-22 17:10:16,750 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 36 [2023-12-22 17:10:16,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:10:16,750 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-22 17:10:16,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states 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 17:10:16,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-22 17:10:16,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-22 17:10:16,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:10:16,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:10:16,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 17:10:16,953 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 17:10:16,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:10:16,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:10:16,955 INFO L85 PathProgramCache]: Analyzing trace with hash 2095173120, now seen corresponding path program 1 times [2023-12-22 17:10:16,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:10:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492859639] [2023-12-22 17:10:16,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:10:16,957 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 17:10:16,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:10:16,958 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 17:10:16,959 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 17:10:17,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:10:17,021 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:10:17,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:10:17,216 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 17:10:17,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:10:17,217 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:10:17,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492859639] [2023-12-22 17:10:17,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492859639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:10:17,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:10:17,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:10:17,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095337925] [2023-12-22 17:10:17,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:10:17,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:10:17,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:10:17,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:10:17,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:10:17,219 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states 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 17:11:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:11:48,704 INFO L93 Difference]: Finished difference Result 4845 states and 9098 transitions. [2023-12-22 17:11:48,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:11:48,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2023-12-22 17:11:48,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:11:48,714 INFO L225 Difference]: With dead ends: 4845 [2023-12-22 17:11:48,714 INFO L226 Difference]: Without dead ends: 3162 [2023-12-22 17:11:48,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 17:11:48,718 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 1494 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 4611 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 4611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.1s IncrementalHoareTripleChecker+Time [2023-12-22 17:11:48,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1468 Invalid, 5674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1063 Valid, 4611 Invalid, 0 Unknown, 0 Unchecked, 91.1s Time] [2023-12-22 17:11:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2023-12-22 17:11:48,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3122. [2023-12-22 17:11:48,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3122 states, 3121 states have (on average 1.6270426145466197) internal successors, (5078), 3121 states have internal predecessors, (5078), 0 states have call successors, (0), 0 states 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 17:11:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3122 states to 3122 states and 5078 transitions. [2023-12-22 17:11:48,770 INFO L78 Accepts]: Start accepts. Automaton has 3122 states and 5078 transitions. Word has length 36 [2023-12-22 17:11:48,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:11:48,771 INFO L495 AbstractCegarLoop]: Abstraction has 3122 states and 5078 transitions. [2023-12-22 17:11:48,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states 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 17:11:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 3122 states and 5078 transitions. [2023-12-22 17:11:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-22 17:11:48,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:11:48,775 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:11:48,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 17:11:48,977 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 17:11:48,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:11:48,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:11:48,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1228231752, now seen corresponding path program 1 times [2023-12-22 17:11:48,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:11:48,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915046956] [2023-12-22 17:11:48,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:11:48,980 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 17:11:48,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:11:48,981 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 17:11:48,983 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 17:11:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:11:49,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:11:49,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:11:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:11:49,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:11:49,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:11:49,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915046956] [2023-12-22 17:11:49,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915046956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:11:49,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:11:49,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:11:49,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073348371] [2023-12-22 17:11:49,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:11:49,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:11:49,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:11:49,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:11:49,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:11:49,518 INFO L87 Difference]: Start difference. First operand 3122 states and 5078 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:13:21,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:13:21,969 INFO L93 Difference]: Finished difference Result 9036 states and 14796 transitions. [2023-12-22 17:13:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:13:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-22 17:13:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:13:22,016 INFO L225 Difference]: With dead ends: 9036 [2023-12-22 17:13:22,016 INFO L226 Difference]: Without dead ends: 5915 [2023-12-22 17:13:22,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:13:22,035 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 1514 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 4741 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 5651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.1s IncrementalHoareTripleChecker+Time [2023-12-22 17:13:22,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1540 Invalid, 5651 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [910 Valid, 4741 Invalid, 0 Unknown, 0 Unchecked, 92.1s Time] [2023-12-22 17:13:22,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2023-12-22 17:13:22,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5885. [2023-12-22 17:13:22,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5885 states, 5884 states have (on average 1.424201223657376) internal successors, (8380), 5884 states have internal predecessors, (8380), 0 states have call successors, (0), 0 states 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 17:13:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5885 states to 5885 states and 8380 transitions. [2023-12-22 17:13:22,167 INFO L78 Accepts]: Start accepts. Automaton has 5885 states and 8380 transitions. Word has length 107 [2023-12-22 17:13:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:13:22,169 INFO L495 AbstractCegarLoop]: Abstraction has 5885 states and 8380 transitions. [2023-12-22 17:13:22,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:13:22,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5885 states and 8380 transitions. [2023-12-22 17:13:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-22 17:13:22,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:13:22,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:13:22,178 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 17:13:22,378 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 17:13:22,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:13:22,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:13:22,381 INFO L85 PathProgramCache]: Analyzing trace with hash -936352681, now seen corresponding path program 1 times [2023-12-22 17:13:22,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:13:22,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58313761] [2023-12-22 17:13:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:13:22,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:13:22,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:13:22,384 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 17:13:22,416 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 17:13:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:13:22,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:13:22,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:13:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:13:23,001 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:13:23,001 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:13:23,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58313761] [2023-12-22 17:13:23,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58313761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:13:23,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:13:23,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:13:23,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554018713] [2023-12-22 17:13:23,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:13:23,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:13:23,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:13:23,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:13:23,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:13:23,003 INFO L87 Difference]: Start difference. First operand 5885 states and 8380 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:15:00,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:15:00,375 INFO L93 Difference]: Finished difference Result 17446 states and 24868 transitions. [2023-12-22 17:15:00,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:15:00,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2023-12-22 17:15:00,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:15:00,425 INFO L225 Difference]: With dead ends: 17446 [2023-12-22 17:15:00,425 INFO L226 Difference]: Without dead ends: 11562 [2023-12-22 17:15:00,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 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 17:15:00,431 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1746 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 4710 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 1805 SdHoareTripleChecker+Invalid, 5653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 4710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.0s IncrementalHoareTripleChecker+Time [2023-12-22 17:15:00,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 1805 Invalid, 5653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [943 Valid, 4710 Invalid, 0 Unknown, 0 Unchecked, 97.0s Time] [2023-12-22 17:15:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11562 states. [2023-12-22 17:15:00,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11562 to 11545. [2023-12-22 17:15:00,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11545 states, 11544 states have (on average 1.2802321552321552) internal successors, (14779), 11544 states have internal predecessors, (14779), 0 states have call successors, (0), 0 states 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 17:15:00,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11545 states to 11545 states and 14779 transitions. [2023-12-22 17:15:00,571 INFO L78 Accepts]: Start accepts. Automaton has 11545 states and 14779 transitions. Word has length 133 [2023-12-22 17:15:00,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:15:00,572 INFO L495 AbstractCegarLoop]: Abstraction has 11545 states and 14779 transitions. [2023-12-22 17:15:00,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:15:00,572 INFO L276 IsEmpty]: Start isEmpty. Operand 11545 states and 14779 transitions. [2023-12-22 17:15:00,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-22 17:15:00,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:15:00,573 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:15:00,580 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-22 17:15:00,778 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 17:15:00,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:15:00,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:15:00,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1066648811, now seen corresponding path program 1 times [2023-12-22 17:15:00,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:15:00,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956065995] [2023-12-22 17:15:00,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:15:00,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 17:15:00,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:15:00,782 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 17:15:00,788 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 17:15:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:15:00,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:15:00,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:15:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:15:01,309 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:15:01,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:15:01,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956065995] [2023-12-22 17:15:01,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1956065995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:15:01,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:15:01,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:15:01,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766093659] [2023-12-22 17:15:01,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:15:01,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:15:01,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:15:01,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:15:01,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:15:01,310 INFO L87 Difference]: Start difference. First operand 11545 states and 14779 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states 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 17:16:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:16:45,857 INFO L93 Difference]: Finished difference Result 34048 states and 43521 transitions. [2023-12-22 17:16:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:16:45,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2023-12-22 17:16:45,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:16:45,926 INFO L225 Difference]: With dead ends: 34048 [2023-12-22 17:16:45,927 INFO L226 Difference]: Without dead ends: 22504 [2023-12-22 17:16:45,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 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 17:16:45,939 INFO L413 NwaCegarLoop]: 1677 mSDtfsCounter, 1356 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 4628 mSolverCounterSat, 1139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 5767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1139 IncrementalHoareTripleChecker+Valid, 4628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 104.1s IncrementalHoareTripleChecker+Time [2023-12-22 17:16:45,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1879 Invalid, 5767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1139 Valid, 4628 Invalid, 0 Unknown, 0 Unchecked, 104.1s Time] [2023-12-22 17:16:45,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22504 states. [2023-12-22 17:16:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22504 to 22499. [2023-12-22 17:16:46,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22499 states, 22498 states have (on average 1.1801048982131745) internal successors, (26550), 22498 states have internal predecessors, (26550), 0 states have call successors, (0), 0 states 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 17:16:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22499 states to 22499 states and 26550 transitions. [2023-12-22 17:16:46,224 INFO L78 Accepts]: Start accepts. Automaton has 22499 states and 26550 transitions. Word has length 141 [2023-12-22 17:16:46,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:16:46,225 INFO L495 AbstractCegarLoop]: Abstraction has 22499 states and 26550 transitions. [2023-12-22 17:16:46,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states 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 17:16:46,226 INFO L276 IsEmpty]: Start isEmpty. Operand 22499 states and 26550 transitions. [2023-12-22 17:16:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-22 17:16:46,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:16:46,234 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:16:46,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 17:16:46,439 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 17:16:46,439 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:16:46,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:16:46,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2056701926, now seen corresponding path program 1 times [2023-12-22 17:16:46,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:16:46,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097847413] [2023-12-22 17:16:46,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:16:46,442 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 17:16:46,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:16:46,457 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 17:16:46,500 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 17:16:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:16:46,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:16:46,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:16:47,447 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-22 17:16:47,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:16:47,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:16:47,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097847413] [2023-12-22 17:16:47,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097847413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:16:47,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:16:47,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:16:47,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826121786] [2023-12-22 17:16:47,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:16:47,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:16:47,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:16:47,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:16:47,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:16:47,449 INFO L87 Difference]: Start difference. First operand 22499 states and 26550 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 17:18:48,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:18:48,906 INFO L93 Difference]: Finished difference Result 47682 states and 57969 transitions. [2023-12-22 17:18:48,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:18:48,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 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 218 [2023-12-22 17:18:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:18:48,944 INFO L225 Difference]: With dead ends: 47682 [2023-12-22 17:18:48,944 INFO L226 Difference]: Without dead ends: 26549 [2023-12-22 17:18:48,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 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 17:18:48,968 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 2469 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 5282 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 5547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 5282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.0s IncrementalHoareTripleChecker+Time [2023-12-22 17:18:48,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 984 Invalid, 5547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [265 Valid, 5282 Invalid, 0 Unknown, 0 Unchecked, 121.0s Time] [2023-12-22 17:18:48,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26549 states. [2023-12-22 17:18:49,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26549 to 26546. [2023-12-22 17:18:49,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26546 states, 26545 states have (on average 1.1935204369937842) internal successors, (31682), 26545 states have internal predecessors, (31682), 0 states have call successors, (0), 0 states 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 17:18:49,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26546 states to 26546 states and 31682 transitions. [2023-12-22 17:18:49,371 INFO L78 Accepts]: Start accepts. Automaton has 26546 states and 31682 transitions. Word has length 218 [2023-12-22 17:18:49,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:18:49,371 INFO L495 AbstractCegarLoop]: Abstraction has 26546 states and 31682 transitions. [2023-12-22 17:18:49,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states 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 17:18:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 26546 states and 31682 transitions. [2023-12-22 17:18:49,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-22 17:18:49,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:18:49,374 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:18:49,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-22 17:18:49,583 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 17:18:49,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:18:49,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:18:49,584 INFO L85 PathProgramCache]: Analyzing trace with hash 781869268, now seen corresponding path program 1 times [2023-12-22 17:18:49,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:18:49,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328795311] [2023-12-22 17:18:49,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:18:49,585 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 17:18:49,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:18:49,586 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 17:18:49,621 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 17:18:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:18:49,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 17:18:49,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:18:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:18:52,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:18:52,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:18:52,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328795311] [2023-12-22 17:18:52,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328795311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:18:52,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:18:52,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 17:18:52,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262363569] [2023-12-22 17:18:52,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:18:52,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:18:52,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:18:52,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:18:52,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:18:52,678 INFO L87 Difference]: Start difference. First operand 26546 states and 31682 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 17:20:12,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:20:12,458 INFO L93 Difference]: Finished difference Result 44887 states and 54555 transitions. [2023-12-22 17:20:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:20:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 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 243 [2023-12-22 17:20:12,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:20:12,501 INFO L225 Difference]: With dead ends: 44887 [2023-12-22 17:20:12,501 INFO L226 Difference]: Without dead ends: 27911 [2023-12-22 17:20:12,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 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 17:20:12,522 INFO L413 NwaCegarLoop]: 1775 mSDtfsCounter, 1161 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4338 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 4343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.3s IncrementalHoareTripleChecker+Time [2023-12-22 17:20:12,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1945 Invalid, 4343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 4338 Invalid, 0 Unknown, 0 Unchecked, 79.3s Time] [2023-12-22 17:20:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27911 states. [2023-12-22 17:20:12,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27911 to 27911. [2023-12-22 17:20:12,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27911 states, 27910 states have (on average 1.184270870655679) internal successors, (33053), 27910 states have internal predecessors, (33053), 0 states have call successors, (0), 0 states 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 17:20:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27911 states to 27911 states and 33053 transitions. [2023-12-22 17:20:12,965 INFO L78 Accepts]: Start accepts. Automaton has 27911 states and 33053 transitions. Word has length 243 [2023-12-22 17:20:12,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:20:12,966 INFO L495 AbstractCegarLoop]: Abstraction has 27911 states and 33053 transitions. [2023-12-22 17:20:12,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states 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 17:20:12,966 INFO L276 IsEmpty]: Start isEmpty. Operand 27911 states and 33053 transitions. [2023-12-22 17:20:12,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2023-12-22 17:20:12,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:20:12,970 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:20:12,975 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 17:20:13,173 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 17:20:13,173 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:20:13,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:20:13,175 INFO L85 PathProgramCache]: Analyzing trace with hash 223947110, now seen corresponding path program 1 times [2023-12-22 17:20:13,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:20:13,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093220355] [2023-12-22 17:20:13,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:20:13,177 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 17:20:13,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:20:13,178 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 17:20:13,213 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 17:20:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:20:13,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 17:20:13,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:20:19,825 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-22 17:20:19,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:20:19,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:20:19,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093220355] [2023-12-22 17:20:19,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093220355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:20:19,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:20:19,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 17:20:19,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328909264] [2023-12-22 17:20:19,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:20:19,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 17:20:19,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:20:19,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 17:20:19,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 17:20:19,829 INFO L87 Difference]: Start difference. First operand 27911 states and 33053 transitions. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 17:21:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:21:43,266 INFO L93 Difference]: Finished difference Result 44918 states and 54574 transitions. [2023-12-22 17:21:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 17:21:43,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 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 431 [2023-12-22 17:21:43,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:21:43,295 INFO L225 Difference]: With dead ends: 44918 [2023-12-22 17:21:43,296 INFO L226 Difference]: Without dead ends: 19707 [2023-12-22 17:21:43,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 17:21:43,307 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1151 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5714 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 5722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:21:43,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1949 Invalid, 5722 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 5714 Invalid, 0 Unknown, 0 Unchecked, 82.9s Time] [2023-12-22 17:21:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19707 states. [2023-12-22 17:21:43,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19707 to 19707. [2023-12-22 17:21:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19707 states, 19706 states have (on average 1.229371764944687) internal successors, (24226), 19706 states have internal predecessors, (24226), 0 states have call successors, (0), 0 states 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 17:21:43,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19707 states to 19707 states and 24226 transitions. [2023-12-22 17:21:43,482 INFO L78 Accepts]: Start accepts. Automaton has 19707 states and 24226 transitions. Word has length 431 [2023-12-22 17:21:43,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:21:43,482 INFO L495 AbstractCegarLoop]: Abstraction has 19707 states and 24226 transitions. [2023-12-22 17:21:43,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 17:21:43,482 INFO L276 IsEmpty]: Start isEmpty. Operand 19707 states and 24226 transitions. [2023-12-22 17:21:43,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2023-12-22 17:21:43,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:21:43,491 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:21:43,498 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 17:21:43,694 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 17:21:43,695 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:21:43,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:21:43,695 INFO L85 PathProgramCache]: Analyzing trace with hash 724545516, now seen corresponding path program 1 times [2023-12-22 17:21:43,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:21:43,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032224382] [2023-12-22 17:21:43,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:21:43,699 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 17:21:43,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:21:43,700 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 17:21:43,701 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 17:21:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:21:43,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 17:21:43,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:21:48,085 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 69 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:21:48,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:21:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 17:21:48,817 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:21:48,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032224382] [2023-12-22 17:21:48,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032224382] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 17:21:48,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 17:21:48,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 17:21:48,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071825211] [2023-12-22 17:21:48,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:21:48,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:21:48,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:21:48,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:21:48,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 17:21:48,819 INFO L87 Difference]: Start difference. First operand 19707 states and 24226 transitions. Second operand has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 0 states have call successors, (0), 0 states 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 17:21:57,313 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 17:21:59,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:22:53,481 WARN L539 Checker$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 17:23:24,479 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 [] Received shutdown request... [2023-12-22 17:23:45,993 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 17:23:45,993 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 17:23:46,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:23:46,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1252 GetRequests, 1249 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 17:23:46,003 INFO L413 NwaCegarLoop]: 944 mSDtfsCounter, 1484 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 3579 mSolverCounterSat, 1294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 4873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1294 IncrementalHoareTripleChecker+Valid, 3579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.7s IncrementalHoareTripleChecker+Time [2023-12-22 17:23:46,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1062 Invalid, 4873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1294 Valid, 3579 Invalid, 0 Unknown, 0 Unchecked, 116.7s Time] [2023-12-22 17:23:46,004 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 17:23:46,012 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 17:23:46,205 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 17:23:46,206 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (19707states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (35984 states constructed, input type IntersectNwa). [2023-12-22 17:23:46,211 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:23:46,213 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 17:23:46,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:23:46 BoogieIcfgContainer [2023-12-22 17:23:46,215 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 17:23:46,215 INFO L158 Benchmark]: Toolchain (without parser) took 873444.54ms. Allocated memory was 227.5MB in the beginning and 954.2MB in the end (delta: 726.7MB). Free memory was 145.9MB in the beginning and 272.9MB in the end (delta: -127.0MB). Peak memory consumption was 734.7MB. Max. memory is 8.0GB. [2023-12-22 17:23:46,215 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 227.5MB. Free memory is still 178.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 17:23:46,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2022.62ms. Allocated memory was 227.5MB in the beginning and 477.1MB in the end (delta: 249.6MB). Free memory was 145.3MB in the beginning and 357.9MB in the end (delta: -212.5MB). Peak memory consumption was 116.1MB. Max. memory is 8.0GB. [2023-12-22 17:23:46,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 274.71ms. Allocated memory is still 477.1MB. Free memory was 357.9MB in the beginning and 288.7MB in the end (delta: 69.2MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2023-12-22 17:23:46,216 INFO L158 Benchmark]: Boogie Preprocessor took 518.42ms. Allocated memory is still 477.1MB. Free memory was 288.7MB in the beginning and 320.1MB in the end (delta: -31.5MB). Peak memory consumption was 127.9MB. Max. memory is 8.0GB. [2023-12-22 17:23:46,216 INFO L158 Benchmark]: RCFGBuilder took 60636.51ms. Allocated memory was 477.1MB in the beginning and 954.2MB in the end (delta: 477.1MB). Free memory was 320.1MB in the beginning and 276.6MB in the end (delta: 43.5MB). Peak memory consumption was 532.7MB. Max. memory is 8.0GB. [2023-12-22 17:23:46,216 INFO L158 Benchmark]: TraceAbstraction took 809986.55ms. Allocated memory is still 954.2MB. Free memory was 276.1MB in the beginning and 272.9MB in the end (delta: 3.1MB). Peak memory consumption was 137.9MB. Max. memory is 8.0GB. [2023-12-22 17:23:46,217 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 227.5MB. Free memory is still 178.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2022.62ms. Allocated memory was 227.5MB in the beginning and 477.1MB in the end (delta: 249.6MB). Free memory was 145.3MB in the beginning and 357.9MB in the end (delta: -212.5MB). Peak memory consumption was 116.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 274.71ms. Allocated memory is still 477.1MB. Free memory was 357.9MB in the beginning and 288.7MB in the end (delta: 69.2MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 518.42ms. Allocated memory is still 477.1MB. Free memory was 288.7MB in the beginning and 320.1MB in the end (delta: -31.5MB). Peak memory consumption was 127.9MB. Max. memory is 8.0GB. * RCFGBuilder took 60636.51ms. Allocated memory was 477.1MB in the beginning and 954.2MB in the end (delta: 477.1MB). Free memory was 320.1MB in the beginning and 276.6MB in the end (delta: 43.5MB). Peak memory consumption was 532.7MB. Max. memory is 8.0GB. * TraceAbstraction took 809986.55ms. Allocated memory is still 954.2MB. Free memory was 276.1MB in the beginning and 272.9MB in the end (delta: 3.1MB). Peak memory consumption was 137.9MB. 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 - TimeoutResultAtElement [Line: 137]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 137). Cancelled while NwaCegarLoop was constructing difference of abstraction (19707states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (35984 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 809.9s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 788.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12375 SdHoareTripleChecker+Valid, 784.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12375 mSDsluCounter, 15770 SdHoareTripleChecker+Invalid, 653.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1602 mSDsCounter, 5627 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37605 IncrementalHoareTripleChecker+Invalid, 43232 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5627 mSolverCounterUnsat, 14168 mSDtfsCounter, 37605 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2589 GetRequests, 2578 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27911occurred in iteration=7, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 95 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 16.9s InterpolantComputationTime, 1972 NumberOfCodeBlocks, 1972 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2589 ConstructedInterpolants, 0 QuantifiedInterpolants, 12356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2356 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 740/843 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown