/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/Problem12_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 10:06:59,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 10:06:59,505 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 10:06:59,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 10:06:59,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 10:06:59,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 10:06:59,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 10:06:59,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 10:06:59,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 10:06:59,534 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 10:06:59,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 10:06:59,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 10:06:59,535 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 10:06:59,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 10:06:59,536 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 10:06:59,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 10:06:59,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 10:06:59,537 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 10:06:59,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 10:06:59,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 10:06:59,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 10:06:59,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 10:06:59,538 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 10:06:59,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 10:06:59,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 10:06:59,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 10:06:59,540 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 10:06:59,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 10:06:59,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 10:06:59,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 10:06:59,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 10:06:59,540 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 10:06:59,540 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 10:06:59,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 10:06:59,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 10:06:59,541 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 10:06:59,541 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 10:06:59,541 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 10:06:59,541 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 10:06:59,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 10:06:59,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 10:06:59,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 10:06:59,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 10:06:59,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 10:06:59,727 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 10:06:59,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label11.c [2023-12-22 10:07:00,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 10:07:01,167 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 10:07:01,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label11.c [2023-12-22 10:07:01,190 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed21ced50/a06b6a14c8ea4981a8d964a03d8c44f7/FLAG3e29db51d [2023-12-22 10:07:01,202 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed21ced50/a06b6a14c8ea4981a8d964a03d8c44f7 [2023-12-22 10:07:01,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 10:07:01,205 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 10:07:01,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 10:07:01,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 10:07:01,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 10:07:01,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:07:01" (1/1) ... [2023-12-22 10:07:01,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6950ac9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:01, skipping insertion in model container [2023-12-22 10:07:01,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:07:01" (1/1) ... [2023-12-22 10:07:01,316 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 10:07:01,489 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/Problem12_label11.c[5009,5022] [2023-12-22 10:07:02,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 10:07:02,218 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 10:07:02,238 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/Problem12_label11.c[5009,5022] [2023-12-22 10:07:02,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 10:07:02,614 INFO L206 MainTranslator]: Completed translation [2023-12-22 10:07:02,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02 WrapperNode [2023-12-22 10:07:02,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 10:07:02,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 10:07:02,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 10:07:02,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 10:07:02,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,782 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4756 [2023-12-22 10:07:02,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 10:07:02,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 10:07:02,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 10:07:02,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 10:07:02,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,814 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,861 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 10:07:02,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:02,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:03,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:03,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:03,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 10:07:03,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 10:07:03,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 10:07:03,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 10:07:03,063 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (1/1) ... [2023-12-22 10:07:03,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 10:07:03,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 10:07:03,111 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 10:07:03,114 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 10:07:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 10:07:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 10:07:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 10:07:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 10:07:03,209 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 10:07:03,211 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 10:07:28,909 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 10:07:28,984 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 10:07:28,985 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 10:07:28,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:07:28 BoogieIcfgContainer [2023-12-22 10:07:28,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 10:07:28,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 10:07:28,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 10:07:28,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 10:07:28,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:07:01" (1/3) ... [2023-12-22 10:07:28,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f82f2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:07:28, skipping insertion in model container [2023-12-22 10:07:28,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:07:02" (2/3) ... [2023-12-22 10:07:28,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f82f2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:07:28, skipping insertion in model container [2023-12-22 10:07:28,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:07:28" (3/3) ... [2023-12-22 10:07:28,993 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label11.c [2023-12-22 10:07:29,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 10:07:29,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 10:07:29,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 10:07:29,068 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;@41f15f9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 10:07:29,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 10:07:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states 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 10:07:29,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-22 10:07:29,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:07:29,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:07:29,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:07:29,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:07:29,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1237556607, now seen corresponding path program 1 times [2023-12-22 10:07:29,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:07:29,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [379418264] [2023-12-22 10:07:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:07:29,111 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 10:07:29,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:07:29,116 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 10:07:29,136 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 10:07:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:07:29,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 10:07:29,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:07:29,201 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 10:07:29,201 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:07:29,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:07:29,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [379418264] [2023-12-22 10:07:29,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [379418264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:07:29,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:07:29,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:07:29,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878661680] [2023-12-22 10:07:29,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:07:29,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 10:07:29,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:07:29,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 10:07:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 10:07:29,234 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 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 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states 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 10:07:29,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:07:29,331 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2023-12-22 10:07:29,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 10:07:29,333 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2023-12-22 10:07:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:07:29,344 INFO L225 Difference]: With dead ends: 1511 [2023-12-22 10:07:29,344 INFO L226 Difference]: Without dead ends: 754 [2023-12-22 10:07:29,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 37 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 10:07:29,362 INFO L413 NwaCegarLoop]: 1438 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, 1438 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 10:07:29,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 10:07:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-22 10:07:29,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-22 10:07:29,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states 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 10:07:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2023-12-22 10:07:29,426 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 38 [2023-12-22 10:07:29,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:07:29,426 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2023-12-22 10:07:29,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states 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 10:07:29,427 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2023-12-22 10:07:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-22 10:07:29,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:07:29,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:07:29,446 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 10:07:29,628 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 10:07:29,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:07:29,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:07:29,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2147299954, now seen corresponding path program 1 times [2023-12-22 10:07:29,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:07:29,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535603856] [2023-12-22 10:07:29,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:07:29,630 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 10:07:29,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:07:29,632 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 10:07:29,639 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 10:07:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:07:29,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:07:29,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:07:29,734 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 10:07:29,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:07:29,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:07:29,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535603856] [2023-12-22 10:07:29,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535603856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:07:29,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:07:29,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:07:29,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934249796] [2023-12-22 10:07:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:07:29,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:07:29,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:07:29,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:07:29,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:07:29,736 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states 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 10:08:04,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:08:04,564 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2023-12-22 10:08:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:08:04,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2023-12-22 10:08:04,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:08:04,570 INFO L225 Difference]: With dead ends: 2258 [2023-12-22 10:08:04,570 INFO L226 Difference]: Without dead ends: 1505 [2023-12-22 10:08:04,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 10:08:04,572 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 740 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 2977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.6s IncrementalHoareTripleChecker+Time [2023-12-22 10:08:04,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 222 Invalid, 2977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 34.6s Time] [2023-12-22 10:08:04,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-12-22 10:08:04,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2023-12-22 10:08:04,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.7746010638297873) internal successors, (2669), 1504 states have internal predecessors, (2669), 0 states have call successors, (0), 0 states 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 10:08:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2669 transitions. [2023-12-22 10:08:04,599 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2669 transitions. Word has length 38 [2023-12-22 10:08:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:08:04,599 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2669 transitions. [2023-12-22 10:08:04,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states 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 10:08:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2669 transitions. [2023-12-22 10:08:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-22 10:08:04,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:08:04,602 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:04,604 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 10:08:04,803 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 10:08:04,804 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:08:04,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:08:04,805 INFO L85 PathProgramCache]: Analyzing trace with hash -309817101, now seen corresponding path program 1 times [2023-12-22 10:08:04,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:08:04,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502066270] [2023-12-22 10:08:04,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:08:04,809 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 10:08:04,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:08:04,810 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 10:08:04,812 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 10:08:04,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:08:04,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:08:04,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:08:05,030 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:08:05,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:08:05,031 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:08:05,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502066270] [2023-12-22 10:08:05,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502066270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:08:05,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:08:05,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:08:05,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543475396] [2023-12-22 10:08:05,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:08:05,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:08:05,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:08:05,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:08:05,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:08:05,033 INFO L87 Difference]: Start difference. First operand 1505 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 10:08:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:08:41,106 INFO L93 Difference]: Finished difference Result 4513 states and 8005 transitions. [2023-12-22 10:08:41,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:08:41,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-22 10:08:41,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:08:41,127 INFO L225 Difference]: With dead ends: 4513 [2023-12-22 10:08:41,127 INFO L226 Difference]: Without dead ends: 3009 [2023-12-22 10:08:41,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 10:08:41,130 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 926 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 2860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.9s IncrementalHoareTripleChecker+Time [2023-12-22 10:08:41,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 352 Invalid, 2860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 35.9s Time] [2023-12-22 10:08:41,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2023-12-22 10:08:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 3007. [2023-12-22 10:08:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.5834996673320028) internal successors, (4760), 3006 states have internal predecessors, (4760), 0 states have call successors, (0), 0 states 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 10:08:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4760 transitions. [2023-12-22 10:08:41,174 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4760 transitions. Word has length 103 [2023-12-22 10:08:41,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:08:41,174 INFO L495 AbstractCegarLoop]: Abstraction has 3007 states and 4760 transitions. [2023-12-22 10:08:41,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 0 states have call successors, (0), 0 states 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 10:08:41,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4760 transitions. [2023-12-22 10:08:41,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-22 10:08:41,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:08:41,176 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:08:41,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 10:08:41,379 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 10:08:41,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:08:41,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:08:41,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1942746210, now seen corresponding path program 1 times [2023-12-22 10:08:41,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:08:41,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534734018] [2023-12-22 10:08:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:08:41,381 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 10:08:41,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:08:41,382 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 10:08:41,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-22 10:08:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:08:41,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 10:08:41,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:08:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:08:42,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:08:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:08:42,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:08:42,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534734018] [2023-12-22 10:08:42,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534734018] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 10:08:42,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 10:08:42,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-22 10:08:42,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152306945] [2023-12-22 10:08:42,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 10:08:42,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 10:08:42,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:08:42,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 10:08:42,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 10:08:42,727 INFO L87 Difference]: Start difference. First operand 3007 states and 4760 transitions. Second operand has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:10:08,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:10:08,945 INFO L93 Difference]: Finished difference Result 16638 states and 25864 transitions. [2023-12-22 10:10:08,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-22 10:10:08,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-22 10:10:08,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:10:08,980 INFO L225 Difference]: With dead ends: 16638 [2023-12-22 10:10:08,981 INFO L226 Difference]: Without dead ends: 13632 [2023-12-22 10:10:08,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-22 10:10:08,987 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 6430 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 8393 mSolverCounterSat, 2729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6430 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 11122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2729 IncrementalHoareTripleChecker+Valid, 8393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.7s IncrementalHoareTripleChecker+Time [2023-12-22 10:10:08,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6430 Valid, 288 Invalid, 11122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2729 Valid, 8393 Invalid, 0 Unknown, 0 Unchecked, 85.7s Time] [2023-12-22 10:10:08,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13632 states. [2023-12-22 10:10:09,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13632 to 12019. [2023-12-22 10:10:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12019 states, 12018 states have (on average 1.2932268264270261) internal successors, (15542), 12018 states have internal predecessors, (15542), 0 states have call successors, (0), 0 states 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 10:10:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12019 states to 12019 states and 15542 transitions. [2023-12-22 10:10:09,144 INFO L78 Accepts]: Start accepts. Automaton has 12019 states and 15542 transitions. Word has length 109 [2023-12-22 10:10:09,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:10:09,145 INFO L495 AbstractCegarLoop]: Abstraction has 12019 states and 15542 transitions. [2023-12-22 10:10:09,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.571428571428573) internal successors, (214), 6 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:10:09,145 INFO L276 IsEmpty]: Start isEmpty. Operand 12019 states and 15542 transitions. [2023-12-22 10:10:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-22 10:10:09,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:10:09,147 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:09,150 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 10:10:09,349 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 10:10:09,349 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:10:09,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:10:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2013761783, now seen corresponding path program 1 times [2023-12-22 10:10:09,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:10:09,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835549560] [2023-12-22 10:10:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:10:09,352 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 10:10:09,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:10:09,353 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 10:10:09,379 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 10:10:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:10:09,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:10:09,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:10:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:10:09,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:10:09,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:10:09,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835549560] [2023-12-22 10:10:09,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835549560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:10:09,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:10:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:10:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527582412] [2023-12-22 10:10:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:10:09,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:10:09,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:10:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:10:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:10:09,603 INFO L87 Difference]: Start difference. First operand 12019 states and 15542 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:10:45,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:10:45,898 INFO L93 Difference]: Finished difference Result 30045 states and 39810 transitions. [2023-12-22 10:10:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:10:45,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2023-12-22 10:10:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:10:45,949 INFO L225 Difference]: With dead ends: 30045 [2023-12-22 10:10:45,949 INFO L226 Difference]: Without dead ends: 18027 [2023-12-22 10:10:45,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 10:10:45,965 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 700 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:10:45,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 426 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 36.0s Time] [2023-12-22 10:10:45,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18027 states. [2023-12-22 10:10:46,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18027 to 16525. [2023-12-22 10:10:46,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16525 states, 16524 states have (on average 1.2586540789155167) internal successors, (20798), 16524 states have internal predecessors, (20798), 0 states have call successors, (0), 0 states 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 10:10:46,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16525 states to 16525 states and 20798 transitions. [2023-12-22 10:10:46,216 INFO L78 Accepts]: Start accepts. Automaton has 16525 states and 20798 transitions. Word has length 154 [2023-12-22 10:10:46,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:10:46,217 INFO L495 AbstractCegarLoop]: Abstraction has 16525 states and 20798 transitions. [2023-12-22 10:10:46,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:10:46,219 INFO L276 IsEmpty]: Start isEmpty. Operand 16525 states and 20798 transitions. [2023-12-22 10:10:46,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-12-22 10:10:46,228 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:10:46,228 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:10:46,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 10:10:46,432 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 10:10:46,433 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:10:46,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:10:46,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1146334374, now seen corresponding path program 1 times [2023-12-22 10:10:46,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:10:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817495083] [2023-12-22 10:10:46,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:10:46,434 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 10:10:46,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:10:46,435 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 10:10:46,437 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 10:10:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:10:46,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:10:46,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:10:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 73 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:10:46,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:10:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:10:47,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:10:47,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817495083] [2023-12-22 10:10:47,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817495083] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 10:10:47,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 10:10:47,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 10:10:47,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487011731] [2023-12-22 10:10:47,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:10:47,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:10:47,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:10:47,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:10:47,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:10:47,216 INFO L87 Difference]: Start difference. First operand 16525 states and 20798 transitions. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 10:10:53,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:12:29,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:12:29,872 INFO L93 Difference]: Finished difference Result 40559 states and 52635 transitions. [2023-12-22 10:12:29,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:12:29,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 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 272 [2023-12-22 10:12:29,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:12:29,921 INFO L225 Difference]: With dead ends: 40559 [2023-12-22 10:12:29,921 INFO L226 Difference]: Without dead ends: 24035 [2023-12-22 10:12:29,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:12:29,937 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 717 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2284 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 3130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 2284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.4s IncrementalHoareTripleChecker+Time [2023-12-22 10:12:29,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 375 Invalid, 3130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 2284 Invalid, 0 Unknown, 0 Unchecked, 102.4s Time] [2023-12-22 10:12:29,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24035 states. [2023-12-22 10:12:30,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24035 to 24035. [2023-12-22 10:12:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24035 states, 24034 states have (on average 1.2982441541150038) internal successors, (31202), 24034 states have internal predecessors, (31202), 0 states have call successors, (0), 0 states 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 10:12:30,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24035 states to 24035 states and 31202 transitions. [2023-12-22 10:12:30,188 INFO L78 Accepts]: Start accepts. Automaton has 24035 states and 31202 transitions. Word has length 272 [2023-12-22 10:12:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:12:30,189 INFO L495 AbstractCegarLoop]: Abstraction has 24035 states and 31202 transitions. [2023-12-22 10:12:30,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 10:12:30,189 INFO L276 IsEmpty]: Start isEmpty. Operand 24035 states and 31202 transitions. [2023-12-22 10:12:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-22 10:12:30,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:12:30,192 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:12:30,200 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 10:12:30,395 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 10:12:30,396 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:12:30,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:12:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1027880624, now seen corresponding path program 1 times [2023-12-22 10:12:30,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:12:30,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555791777] [2023-12-22 10:12:30,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:12:30,398 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 10:12:30,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:12:30,399 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 10:12:30,404 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 10:12:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:12:30,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:12:30,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:12:30,661 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:12:30,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:12:30,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:12:30,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555791777] [2023-12-22 10:12:30,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555791777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:12:30,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:12:30,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:12:30,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642286696] [2023-12-22 10:12:30,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:12:30,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:12:30,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:12:30,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:12:30,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:12:30,662 INFO L87 Difference]: Start difference. First operand 24035 states and 31202 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 10:13:07,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:13:07,892 INFO L93 Difference]: Finished difference Result 58583 states and 76031 transitions. [2023-12-22 10:13:07,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:13:07,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 276 [2023-12-22 10:13:07,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:13:07,987 INFO L225 Difference]: With dead ends: 58583 [2023-12-22 10:13:07,987 INFO L226 Difference]: Without dead ends: 34549 [2023-12-22 10:13:08,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 274 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 10:13:08,011 INFO L413 NwaCegarLoop]: 1188 mSDtfsCounter, 680 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2433 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 3084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2023-12-22 10:13:08,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1194 Invalid, 3084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2433 Invalid, 0 Unknown, 0 Unchecked, 36.9s Time] [2023-12-22 10:13:08,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34549 states. [2023-12-22 10:13:08,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34549 to 33047. [2023-12-22 10:13:08,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33047 states, 33046 states have (on average 1.2619379047388488) internal successors, (41702), 33046 states have internal predecessors, (41702), 0 states have call successors, (0), 0 states 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 10:13:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33047 states to 33047 states and 41702 transitions. [2023-12-22 10:13:08,398 INFO L78 Accepts]: Start accepts. Automaton has 33047 states and 41702 transitions. Word has length 276 [2023-12-22 10:13:08,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:13:08,399 INFO L495 AbstractCegarLoop]: Abstraction has 33047 states and 41702 transitions. [2023-12-22 10:13:08,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states 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 10:13:08,399 INFO L276 IsEmpty]: Start isEmpty. Operand 33047 states and 41702 transitions. [2023-12-22 10:13:08,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-22 10:13:08,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:13:08,403 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 10:13:08,426 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 10:13:08,627 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 10:13:08,628 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:13:08,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:13:08,628 INFO L85 PathProgramCache]: Analyzing trace with hash 468328657, now seen corresponding path program 1 times [2023-12-22 10:13:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:13:08,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706823628] [2023-12-22 10:13:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:13:08,629 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 10:13:08,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:13:08,630 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 10:13:08,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-22 10:13:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:13:08,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 10:13:08,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:13:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 244 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-22 10:13:09,477 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:13:09,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:13:09,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706823628] [2023-12-22 10:13:09,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706823628] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:13:09,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:13:09,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:13:09,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931383054] [2023-12-22 10:13:09,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:13:09,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 10:13:09,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:13:09,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 10:13:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 10:13:09,478 INFO L87 Difference]: Start difference. First operand 33047 states and 41702 transitions. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 10:13:33,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:13:33,732 INFO L93 Difference]: Finished difference Result 66880 states and 84232 transitions. [2023-12-22 10:13:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 10:13:33,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2023-12-22 10:13:33,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:13:33,769 INFO L225 Difference]: With dead ends: 66880 [2023-12-22 10:13:33,769 INFO L226 Difference]: Without dead ends: 33798 [2023-12-22 10:13:33,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 10:13:33,789 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 685 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3679 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 3683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:13:33,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 670 Invalid, 3683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 3679 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2023-12-22 10:13:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33798 states. [2023-12-22 10:13:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33798 to 33798. [2023-12-22 10:13:34,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33798 states, 33797 states have (on average 1.2572121785957333) internal successors, (42490), 33797 states have internal predecessors, (42490), 0 states have call successors, (0), 0 states 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 10:13:34,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33798 states to 33798 states and 42490 transitions. [2023-12-22 10:13:34,095 INFO L78 Accepts]: Start accepts. Automaton has 33798 states and 42490 transitions. Word has length 279 [2023-12-22 10:13:34,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:13:34,095 INFO L495 AbstractCegarLoop]: Abstraction has 33798 states and 42490 transitions. [2023-12-22 10:13:34,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 10:13:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 33798 states and 42490 transitions. [2023-12-22 10:13:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2023-12-22 10:13:34,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:13:34,099 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:13:34,107 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 10:13:34,302 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 10:13:34,303 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:13:34,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:13:34,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1904201176, now seen corresponding path program 1 times [2023-12-22 10:13:34,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:13:34,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688614583] [2023-12-22 10:13:34,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:13:34,304 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 10:13:34,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:13:34,305 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 10:13:34,307 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 10:13:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:13:34,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:13:34,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:13:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-22 10:13:34,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:13:34,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:13:34,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688614583] [2023-12-22 10:13:34,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688614583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:13:34,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:13:34,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:13:34,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934374559] [2023-12-22 10:13:34,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:13:34,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:13:34,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:13:34,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:13:34,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:13:34,950 INFO L87 Difference]: Start difference. First operand 33798 states and 42490 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 10:14:03,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:14:03,218 INFO L93 Difference]: Finished difference Result 66844 states and 84191 transitions. [2023-12-22 10:14:03,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:14:03,224 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 279 [2023-12-22 10:14:03,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:14:03,285 INFO L225 Difference]: With dead ends: 66844 [2023-12-22 10:14:03,285 INFO L226 Difference]: Without dead ends: 33798 [2023-12-22 10:14:03,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 277 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 10:14:03,327 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 610 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2413 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 2499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:14:03,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 683 Invalid, 2499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2413 Invalid, 0 Unknown, 0 Unchecked, 28.0s Time] [2023-12-22 10:14:03,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33798 states. [2023-12-22 10:14:03,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33798 to 33798. [2023-12-22 10:14:03,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33798 states, 33797 states have (on average 1.2531289759446105) internal successors, (42352), 33797 states have internal predecessors, (42352), 0 states have call successors, (0), 0 states 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 10:14:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33798 states to 33798 states and 42352 transitions. [2023-12-22 10:14:03,819 INFO L78 Accepts]: Start accepts. Automaton has 33798 states and 42352 transitions. Word has length 279 [2023-12-22 10:14:03,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:14:03,820 INFO L495 AbstractCegarLoop]: Abstraction has 33798 states and 42352 transitions. [2023-12-22 10:14:03,820 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 10:14:03,820 INFO L276 IsEmpty]: Start isEmpty. Operand 33798 states and 42352 transitions. [2023-12-22 10:14:03,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-22 10:14:03,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:14:03,823 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:14:03,831 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 10:14:04,028 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 10:14:04,030 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:14:04,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:14:04,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1693053868, now seen corresponding path program 1 times [2023-12-22 10:14:04,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:14:04,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136447690] [2023-12-22 10:14:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:14:04,035 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 10:14:04,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:14:04,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:14:04,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-22 10:14:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:14:04,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:14:04,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:14:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-12-22 10:14:04,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:14:04,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:14:04,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136447690] [2023-12-22 10:14:04,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136447690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:14:04,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:14:04,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 10:14:04,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179517983] [2023-12-22 10:14:04,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:14:04,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:14:04,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:14:04,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:14:04,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:14:04,661 INFO L87 Difference]: Start difference. First operand 33798 states and 42352 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:14:41,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:14:41,651 INFO L93 Difference]: Finished difference Result 83366 states and 105478 transitions. [2023-12-22 10:14:41,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:14:41,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 291 [2023-12-22 10:14:41,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:14:41,737 INFO L225 Difference]: With dead ends: 83366 [2023-12-22 10:14:41,738 INFO L226 Difference]: Without dead ends: 49569 [2023-12-22 10:14:41,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 289 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 10:14:41,759 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 612 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 2930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2023-12-22 10:14:41,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 657 Invalid, 2930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 36.5s Time] [2023-12-22 10:14:41,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49569 states. [2023-12-22 10:14:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49569 to 48818. [2023-12-22 10:14:42,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48818 states, 48817 states have (on average 1.199172419444046) internal successors, (58540), 48817 states have internal predecessors, (58540), 0 states have call successors, (0), 0 states 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 10:14:42,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48818 states to 48818 states and 58540 transitions. [2023-12-22 10:14:42,460 INFO L78 Accepts]: Start accepts. Automaton has 48818 states and 58540 transitions. Word has length 291 [2023-12-22 10:14:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:14:42,460 INFO L495 AbstractCegarLoop]: Abstraction has 48818 states and 58540 transitions. [2023-12-22 10:14:42,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:14:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand 48818 states and 58540 transitions. [2023-12-22 10:14:42,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2023-12-22 10:14:42,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:14:42,482 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:14:42,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-22 10:14:42,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:14:42,683 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:14:42,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:14:42,683 INFO L85 PathProgramCache]: Analyzing trace with hash -944560017, now seen corresponding path program 1 times [2023-12-22 10:14:42,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:14:42,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308527556] [2023-12-22 10:14:42,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:14:42,685 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 10:14:42,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:14:42,685 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:14:42,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-22 10:14:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:14:42,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:14:42,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:14:42,930 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-22 10:14:42,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:14:42,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:14:42,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308527556] [2023-12-22 10:14:42,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308527556] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:14:42,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:14:42,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:14:42,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180890023] [2023-12-22 10:14:42,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:14:42,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:14:42,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:14:42,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:14:42,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:14:42,932 INFO L87 Difference]: Start difference. First operand 48818 states and 58540 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states 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 10:15:25,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:15:26,001 INFO L93 Difference]: Finished difference Result 96884 states and 116323 transitions. [2023-12-22 10:15:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:15:26,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 361 [2023-12-22 10:15:26,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:15:26,089 INFO L225 Difference]: With dead ends: 96884 [2023-12-22 10:15:26,089 INFO L226 Difference]: Without dead ends: 48818 [2023-12-22 10:15:26,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 359 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 10:15:26,110 INFO L413 NwaCegarLoop]: 1321 mSDtfsCounter, 681 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2763 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 3131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 2763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2023-12-22 10:15:26,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1328 Invalid, 3131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 2763 Invalid, 0 Unknown, 0 Unchecked, 42.6s Time] [2023-12-22 10:15:26,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48818 states. [2023-12-22 10:15:26,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48818 to 48067. [2023-12-22 10:15:26,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48067 states, 48066 states have (on average 1.179066283859693) internal successors, (56673), 48066 states have internal predecessors, (56673), 0 states have call successors, (0), 0 states 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 10:15:26,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48067 states to 48067 states and 56673 transitions. [2023-12-22 10:15:26,730 INFO L78 Accepts]: Start accepts. Automaton has 48067 states and 56673 transitions. Word has length 361 [2023-12-22 10:15:26,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:15:26,730 INFO L495 AbstractCegarLoop]: Abstraction has 48067 states and 56673 transitions. [2023-12-22 10:15:26,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states 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 10:15:26,731 INFO L276 IsEmpty]: Start isEmpty. Operand 48067 states and 56673 transitions. [2023-12-22 10:15:26,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-12-22 10:15:26,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:15:26,735 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-22 10:15:26,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-12-22 10:15:26,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:15:26,939 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:15:26,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:15:26,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1293673273, now seen corresponding path program 1 times [2023-12-22 10:15:26,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:15:26,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983217172] [2023-12-22 10:15:26,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:15:26,941 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:15:26,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:15:26,954 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:15:26,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-22 10:15:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:15:27,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 10:15:27,106 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:15:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 254 proven. 84 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-22 10:15:27,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:15:27,831 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 338 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-22 10:15:27,831 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:15:27,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983217172] [2023-12-22 10:15:27,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983217172] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 10:15:27,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 10:15:27,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 10:15:27,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006722112] [2023-12-22 10:15:27,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:15:27,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:15:27,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:15:27,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:15:27,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:15:27,833 INFO L87 Difference]: Start difference. First operand 48067 states and 56673 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:16:42,833 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 10:16:45,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:16:45,929 INFO L93 Difference]: Finished difference Result 123169 states and 147314 transitions. [2023-12-22 10:16:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:16:45,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 365 [2023-12-22 10:16:45,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:16:46,014 INFO L225 Difference]: With dead ends: 123169 [2023-12-22 10:16:46,014 INFO L226 Difference]: Without dead ends: 75854 [2023-12-22 10:16:46,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-22 10:16:46,041 INFO L413 NwaCegarLoop]: 1297 mSDtfsCounter, 691 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 3051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.4s IncrementalHoareTripleChecker+Time [2023-12-22 10:16:46,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1304 Invalid, 3051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 77.4s Time] [2023-12-22 10:16:46,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75854 states. [2023-12-22 10:16:46,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75854 to 74352. [2023-12-22 10:16:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74352 states, 74351 states have (on average 1.1604685881830776) internal successors, (86282), 74351 states have internal predecessors, (86282), 0 states have call successors, (0), 0 states 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 10:16:46,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74352 states to 74352 states and 86282 transitions. [2023-12-22 10:16:46,929 INFO L78 Accepts]: Start accepts. Automaton has 74352 states and 86282 transitions. Word has length 365 [2023-12-22 10:16:46,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:16:46,930 INFO L495 AbstractCegarLoop]: Abstraction has 74352 states and 86282 transitions. [2023-12-22 10:16:46,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 10:16:46,931 INFO L276 IsEmpty]: Start isEmpty. Operand 74352 states and 86282 transitions. [2023-12-22 10:16:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2023-12-22 10:16:46,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:16:46,943 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:16:46,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 10:16:47,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:16:47,148 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:16:47,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:16:47,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1442821591, now seen corresponding path program 1 times [2023-12-22 10:16:47,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:16:47,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005442636] [2023-12-22 10:16:47,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:16:47,157 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 10:16:47,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:16:47,159 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:16:47,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-22 10:16:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:16:47,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 10:16:47,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:16:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-22 10:16:47,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 10:16:47,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:16:47,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005442636] [2023-12-22 10:16:47,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005442636] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 10:16:47,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 10:16:47,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 10:16:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561509214] [2023-12-22 10:16:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 10:16:47,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 10:16:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:16:47,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 10:16:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 10:16:47,591 INFO L87 Difference]: Start difference. First operand 74352 states and 86282 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states 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 10:17:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 10:17:26,649 INFO L93 Difference]: Finished difference Result 177992 states and 208309 transitions. [2023-12-22 10:17:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 10:17:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 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 389 [2023-12-22 10:17:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 10:17:26,778 INFO L225 Difference]: With dead ends: 177992 [2023-12-22 10:17:26,779 INFO L226 Difference]: Without dead ends: 104392 [2023-12-22 10:17:26,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 387 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 10:17:26,816 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 667 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2413 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.4s IncrementalHoareTripleChecker+Time [2023-12-22 10:17:26,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1354 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2413 Invalid, 0 Unknown, 0 Unchecked, 38.4s Time] [2023-12-22 10:17:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104392 states. [2023-12-22 10:17:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104392 to 104392. [2023-12-22 10:17:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104392 states, 104391 states have (on average 1.1326263758369974) internal successors, (118236), 104391 states have internal predecessors, (118236), 0 states have call successors, (0), 0 states 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 10:17:28,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104392 states to 104392 states and 118236 transitions. [2023-12-22 10:17:28,281 INFO L78 Accepts]: Start accepts. Automaton has 104392 states and 118236 transitions. Word has length 389 [2023-12-22 10:17:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 10:17:28,282 INFO L495 AbstractCegarLoop]: Abstraction has 104392 states and 118236 transitions. [2023-12-22 10:17:28,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states 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 10:17:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 104392 states and 118236 transitions. [2023-12-22 10:17:28,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-22 10:17:28,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 10:17:28,286 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:28,292 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 (14)] Ended with exit code 0 [2023-12-22 10:17:28,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:17:28,494 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 10:17:28,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 10:17:28,494 INFO L85 PathProgramCache]: Analyzing trace with hash -745118817, now seen corresponding path program 1 times [2023-12-22 10:17:28,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 10:17:28,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717172487] [2023-12-22 10:17:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 10:17:28,587 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 10:17:28,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 10:17:28,588 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-22 10:17:28,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-22 10:17:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 10:17:28,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 10:17:28,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 10:17:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 110 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:17:29,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 10:17:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 318 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 10:17:37,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 10:17:37,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717172487] [2023-12-22 10:17:37,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717172487] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 10:17:37,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 10:17:37,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 10:17:37,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361810919] [2023-12-22 10:17:37,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 10:17:37,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-22 10:17:37,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 10:17:37,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-22 10:17:37,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 10:17:37,361 INFO L87 Difference]: Start difference. First operand 104392 states and 118236 transitions. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states 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 10:17:50,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:10,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:32,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:40,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:45,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:48,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:51,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:54,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:18:59,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:00,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:08,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:11,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:25,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:31,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:37,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:39,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:19:43,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:20:13,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:20:31,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:20:51,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:20:55,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:21:04,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:21:08,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:21:16,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 10:21:19,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 10:21:30,881 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 (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 10:21:30,881 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 10:21:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-22 10:21:31,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 780 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-22 10:21:31,085 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 3542 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 7207 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3542 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 8063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 7207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 233.0s IncrementalHoareTripleChecker+Time [2023-12-22 10:21:31,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3542 Valid, 100 Invalid, 8063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [856 Valid, 7207 Invalid, 0 Unknown, 0 Unchecked, 233.0s Time] [2023-12-22 10:21:31,087 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 10:21:31,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-22 10:21:31,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 10:21:31,288 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (104392states) and FLOYD_HOARE automaton (currently 8 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (43536 states constructed, input type IntersectNwa). [2023-12-22 10:21:31,292 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 10:21:31,293 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 10:21:31,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:21:31 BoogieIcfgContainer [2023-12-22 10:21:31,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 10:21:31,295 INFO L158 Benchmark]: Toolchain (without parser) took 870090.01ms. Allocated memory was 182.5MB in the beginning and 946.9MB in the end (delta: 764.4MB). Free memory was 112.0MB in the beginning and 596.1MB in the end (delta: -484.1MB). Peak memory consumption was 550.0MB. Max. memory is 8.0GB. [2023-12-22 10:21:31,295 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 10:21:31,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1408.37ms. Allocated memory was 182.5MB in the beginning and 267.4MB in the end (delta: 84.9MB). Free memory was 111.7MB in the beginning and 208.5MB in the end (delta: -96.7MB). Peak memory consumption was 128.2MB. Max. memory is 8.0GB. [2023-12-22 10:21:31,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.53ms. Allocated memory is still 267.4MB. Free memory was 208.5MB in the beginning and 173.3MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-22 10:21:31,295 INFO L158 Benchmark]: Boogie Preprocessor took 277.97ms. Allocated memory is still 267.4MB. Free memory was 173.3MB in the beginning and 136.6MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-22 10:21:31,296 INFO L158 Benchmark]: RCFGBuilder took 25923.15ms. Allocated memory was 267.4MB in the beginning and 455.1MB in the end (delta: 187.7MB). Free memory was 136.6MB in the beginning and 262.5MB in the end (delta: -125.8MB). Peak memory consumption was 162.0MB. Max. memory is 8.0GB. [2023-12-22 10:21:31,299 INFO L158 Benchmark]: TraceAbstraction took 842307.52ms. Allocated memory was 455.1MB in the beginning and 946.9MB in the end (delta: 491.8MB). Free memory was 261.9MB in the beginning and 596.1MB in the end (delta: -334.2MB). Peak memory consumption was 426.5MB. Max. memory is 8.0GB. [2023-12-22 10:21:31,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 182.5MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1408.37ms. Allocated memory was 182.5MB in the beginning and 267.4MB in the end (delta: 84.9MB). Free memory was 111.7MB in the beginning and 208.5MB in the end (delta: -96.7MB). Peak memory consumption was 128.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 166.53ms. Allocated memory is still 267.4MB. Free memory was 208.5MB in the beginning and 173.3MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 277.97ms. Allocated memory is still 267.4MB. Free memory was 173.3MB in the beginning and 136.6MB in the end (delta: 36.7MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * RCFGBuilder took 25923.15ms. Allocated memory was 267.4MB in the beginning and 455.1MB in the end (delta: 187.7MB). Free memory was 136.6MB in the beginning and 262.5MB in the end (delta: -125.8MB). Peak memory consumption was 162.0MB. Max. memory is 8.0GB. * TraceAbstraction took 842307.52ms. Allocated memory was 455.1MB in the beginning and 946.9MB in the end (delta: 491.8MB). Free memory was 261.9MB in the beginning and 596.1MB in the end (delta: -334.2MB). Peak memory consumption was 426.5MB. 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: 139]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 139). Cancelled while NwaCegarLoop was constructing difference of abstraction (104392states) and FLOYD_HOARE automaton (currently 8 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (43536 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 756 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 842.3s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 817.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17681 SdHoareTripleChecker+Valid, 811.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17681 mSDsluCounter, 10391 SdHoareTripleChecker+Invalid, 711.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 8756 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43602 IncrementalHoareTripleChecker+Invalid, 52358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8756 mSolverCounterUnsat, 10203 mSDtfsCounter, 43602 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4474 GetRequests, 4443 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104392occurred in iteration=13, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 7623 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.8s InterpolantComputationTime, 3347 NumberOfCodeBlocks, 3347 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4468 ConstructedInterpolants, 0 QuantifiedInterpolants, 14422 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4035 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 3088/3664 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