/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/array-lopstr16/partial_lesser_bound.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 20:06:56,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 20:06:57,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-21 20:06:57,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 20:06:57,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 20:06:57,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 20:06:57,055 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 20:06:57,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 20:06:57,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 20:06:57,061 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 20:06:57,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 20:06:57,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 20:06:57,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 20:06:57,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 20:06:57,062 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 20:06:57,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 20:06:57,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 20:06:57,063 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 20:06:57,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 20:06:57,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 20:06:57,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 20:06:57,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 20:06:57,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 20:06:57,066 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-21 20:06:57,068 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-21 20:06:57,068 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 20:06:57,068 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-21 20:06:57,068 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 20:06:57,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 20:06:57,068 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 20:06:57,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 20:06:57,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 20:06:57,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 20:06:57,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 20:06:57,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 20:06:57,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 20:06:57,070 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 20:06:57,070 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 20:06:57,070 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-21 20:06:57,070 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-21 20:06:57,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 20:06:57,071 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 20:06:57,071 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 20:06:57,071 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 20:06:57,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 20:06:57,071 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-21 20:06:57,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-21 20:06:57,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 20:06:57,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 20:06:57,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 20:06:57,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 20:06:57,290 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 20:06:57,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/partial_lesser_bound.i [2023-12-21 20:06:58,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 20:06:58,472 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 20:06:58,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/partial_lesser_bound.i [2023-12-21 20:06:58,477 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a060eadb1/7c73312980ef4c5292c48144ec5e1da8/FLAGee99fc367 [2023-12-21 20:06:58,485 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a060eadb1/7c73312980ef4c5292c48144ec5e1da8 [2023-12-21 20:06:58,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 20:06:58,489 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 20:06:58,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 20:06:58,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 20:06:58,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 20:06:58,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ff556e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58, skipping insertion in model container [2023-12-21 20:06:58,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,511 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 20:06:58,606 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/partial_lesser_bound.i[813,826] [2023-12-21 20:06:58,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 20:06:58,636 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 20:06:58,644 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/partial_lesser_bound.i[813,826] [2023-12-21 20:06:58,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 20:06:58,665 INFO L206 MainTranslator]: Completed translation [2023-12-21 20:06:58,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58 WrapperNode [2023-12-21 20:06:58,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 20:06:58,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 20:06:58,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 20:06:58,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 20:06:58,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,693 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2023-12-21 20:06:58,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 20:06:58,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 20:06:58,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 20:06:58,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 20:06:58,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,712 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2023-12-21 20:06:58,713 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,719 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 20:06:58,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 20:06:58,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 20:06:58,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 20:06:58,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (1/1) ... [2023-12-21 20:06:58,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 20:06:58,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 20:06:58,750 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) [2023-12-21 20:06:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-12-21 20:06:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-12-21 20:06:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 20:06:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-21 20:06:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-21 20:06:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-12-21 20:06:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-12-21 20:06:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-21 20:06:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 20:06:58,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 20:06:58,754 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 [2023-12-21 20:06:58,844 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 20:06:58,845 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 20:06:58,987 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 20:06:59,010 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 20:06:59,010 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-12-21 20:06:59,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:06:59 BoogieIcfgContainer [2023-12-21 20:06:59,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 20:06:59,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 20:06:59,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 20:06:59,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 20:06:59,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 08:06:58" (1/3) ... [2023-12-21 20:06:59,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2031c5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:06:59, skipping insertion in model container [2023-12-21 20:06:59,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 08:06:58" (2/3) ... [2023-12-21 20:06:59,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2031c5d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 08:06:59, skipping insertion in model container [2023-12-21 20:06:59,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 08:06:59" (3/3) ... [2023-12-21 20:06:59,016 INFO L112 eAbstractionObserver]: Analyzing ICFG partial_lesser_bound.i [2023-12-21 20:06:59,027 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 20:06:59,027 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 20:06:59,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 20:06:59,056 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;@21fd2bad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 20:06:59,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 20:06:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:06:59,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-21 20:06:59,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:06:59,063 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:06:59,063 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:06:59,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:06:59,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2137985797, now seen corresponding path program 1 times [2023-12-21 20:06:59,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:06:59,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487791440] [2023-12-21 20:06:59,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 20:06:59,075 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 [2023-12-21 20:06:59,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:06:59,077 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) [2023-12-21 20:06:59,085 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 [2023-12-21 20:06:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 20:06:59,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 20:06:59,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:06:59,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-21 20:06:59,181 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 20:06:59,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:06:59,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487791440] [2023-12-21 20:06:59,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487791440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 20:06:59,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 20:06:59,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 20:06:59,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438103172] [2023-12-21 20:06:59,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 20:06:59,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 20:06:59,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:06:59,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 20:06:59,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 20:06:59,216 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.8) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:06:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:06:59,268 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2023-12-21 20:06:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 20:06:59,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2023-12-21 20:06:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:06:59,275 INFO L225 Difference]: With dead ends: 29 [2023-12-21 20:06:59,275 INFO L226 Difference]: Without dead ends: 17 [2023-12-21 20:06:59,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 20:06:59,280 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 20:06:59,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 20:06:59,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-12-21 20:06:59,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 12. [2023-12-21 20:06:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:06:59,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2023-12-21 20:06:59,328 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2023-12-21 20:06:59,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:06:59,329 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2023-12-21 20:06:59,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:06:59,329 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-12-21 20:06:59,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-21 20:06:59,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:06:59,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:06:59,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-21 20:06:59,532 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 [2023-12-21 20:06:59,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:06:59,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:06:59,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1914134572, now seen corresponding path program 1 times [2023-12-21 20:06:59,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:06:59,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465961385] [2023-12-21 20:06:59,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 20:06:59,534 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 [2023-12-21 20:06:59,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:06:59,536 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) [2023-12-21 20:06:59,537 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 [2023-12-21 20:06:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 20:06:59,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 20:06:59,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:06:59,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 20:06:59,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:06:59,625 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-21 20:06:59,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:06:59,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465961385] [2023-12-21 20:06:59,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465961385] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:06:59,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:06:59,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-21 20:06:59,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283845891] [2023-12-21 20:06:59,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:06:59,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 20:06:59,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:06:59,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 20:06:59,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 20:06:59,629 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:06:59,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:06:59,737 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2023-12-21 20:06:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 20:06:59,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 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 10 [2023-12-21 20:06:59,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:06:59,738 INFO L225 Difference]: With dead ends: 36 [2023-12-21 20:06:59,738 INFO L226 Difference]: Without dead ends: 27 [2023-12-21 20:06:59,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-21 20:06:59,739 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 19 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 20:06:59,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 15 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 20:06:59,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-12-21 20:06:59,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2023-12-21 20:06:59,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:06:59,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-12-21 20:06:59,743 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2023-12-21 20:06:59,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:06:59,743 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-12-21 20:06:59,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:06:59,743 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-21 20:06:59,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-21 20:06:59,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:06:59,744 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:06:59,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-21 20:06:59,946 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 [2023-12-21 20:06:59,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:06:59,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:06:59,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1611463077, now seen corresponding path program 2 times [2023-12-21 20:06:59,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:06:59,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824543566] [2023-12-21 20:06:59,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 20:06:59,948 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 [2023-12-21 20:06:59,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:06:59,949 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) [2023-12-21 20:06:59,950 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 [2023-12-21 20:07:00,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 20:07:00,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 20:07:00,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 20:07:00,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:07:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-21 20:07:00,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:07:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-21 20:07:00,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:07:00,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824543566] [2023-12-21 20:07:00,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824543566] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:07:00,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:07:00,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-21 20:07:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585164998] [2023-12-21 20:07:00,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:07:00,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 20:07:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:07:00,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 20:07:00,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-21 20:07:00,182 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:00,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:07:00,529 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2023-12-21 20:07:00,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 20:07:00,530 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-21 20:07:00,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:07:00,530 INFO L225 Difference]: With dead ends: 61 [2023-12-21 20:07:00,530 INFO L226 Difference]: Without dead ends: 51 [2023-12-21 20:07:00,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-12-21 20:07:00,531 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 85 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 20:07:00,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 78 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 20:07:00,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-12-21 20:07:00,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 25. [2023-12-21 20:07:00,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:00,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-12-21 20:07:00,537 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 14 [2023-12-21 20:07:00,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:07:00,537 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-12-21 20:07:00,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:00,537 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-12-21 20:07:00,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-21 20:07:00,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:07:00,537 INFO L195 NwaCegarLoop]: trace histogram [10, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:07:00,547 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 [2023-12-21 20:07:00,742 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 [2023-12-21 20:07:00,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:07:00,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:07:00,743 INFO L85 PathProgramCache]: Analyzing trace with hash 936638602, now seen corresponding path program 3 times [2023-12-21 20:07:00,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:07:00,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656104025] [2023-12-21 20:07:00,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-21 20:07:00,744 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 [2023-12-21 20:07:00,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:07:00,745 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) [2023-12-21 20:07:00,747 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 [2023-12-21 20:07:00,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-21 20:07:00,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 20:07:00,876 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 20:07:00,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:07:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-21 20:07:00,923 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:07:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-21 20:07:01,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:07:01,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656104025] [2023-12-21 20:07:01,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656104025] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:07:01,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:07:01,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-12-21 20:07:01,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690643424] [2023-12-21 20:07:01,074 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:07:01,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 20:07:01,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:07:01,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 20:07:01,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-12-21 20:07:01,075 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:01,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:07:01,664 INFO L93 Difference]: Finished difference Result 103 states and 115 transitions. [2023-12-21 20:07:01,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 20:07:01,666 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 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 23 [2023-12-21 20:07:01,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:07:01,666 INFO L225 Difference]: With dead ends: 103 [2023-12-21 20:07:01,667 INFO L226 Difference]: Without dead ends: 90 [2023-12-21 20:07:01,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2023-12-21 20:07:01,668 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 184 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-21 20:07:01,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 127 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-21 20:07:01,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-21 20:07:01,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 34. [2023-12-21 20:07:01,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2023-12-21 20:07:01,679 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2023-12-21 20:07:01,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:07:01,680 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2023-12-21 20:07:01,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2023-12-21 20:07:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-21 20:07:01,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:07:01,681 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:07:01,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-21 20:07:01,884 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 [2023-12-21 20:07:01,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:07:01,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:07:01,885 INFO L85 PathProgramCache]: Analyzing trace with hash -671410501, now seen corresponding path program 4 times [2023-12-21 20:07:01,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:07:01,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76970700] [2023-12-21 20:07:01,886 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-21 20:07:01,886 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 [2023-12-21 20:07:01,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:07:01,890 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) [2023-12-21 20:07:01,891 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 [2023-12-21 20:07:02,040 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-21 20:07:02,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 20:07:02,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 20:07:02,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:07:02,168 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-21 20:07:02,168 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:07:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-21 20:07:02,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:07:02,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76970700] [2023-12-21 20:07:02,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76970700] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:07:02,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:07:02,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2023-12-21 20:07:02,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919757542] [2023-12-21 20:07:02,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:07:02,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-21 20:07:02,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:07:02,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-21 20:07:02,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-12-21 20:07:02,549 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:04,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:07:04,707 INFO L93 Difference]: Finished difference Result 135 states and 153 transitions. [2023-12-21 20:07:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-21 20:07:04,707 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 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 32 [2023-12-21 20:07:04,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:07:04,708 INFO L225 Difference]: With dead ends: 135 [2023-12-21 20:07:04,708 INFO L226 Difference]: Without dead ends: 115 [2023-12-21 20:07:04,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=558, Invalid=1002, Unknown=0, NotChecked=0, Total=1560 [2023-12-21 20:07:04,710 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 521 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 20:07:04,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 510 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 20:07:04,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-21 20:07:04,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 49. [2023-12-21 20:07:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0625) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:04,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2023-12-21 20:07:04,717 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 32 [2023-12-21 20:07:04,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:07:04,718 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2023-12-21 20:07:04,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.25) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:04,718 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2023-12-21 20:07:04,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-21 20:07:04,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:07:04,719 INFO L195 NwaCegarLoop]: trace histogram [26, 13, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:07:04,726 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 [2023-12-21 20:07:04,924 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 [2023-12-21 20:07:04,925 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:07:04,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:07:04,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1264325386, now seen corresponding path program 5 times [2023-12-21 20:07:04,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:07:04,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1638472587] [2023-12-21 20:07:04,926 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-21 20:07:04,926 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 [2023-12-21 20:07:04,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:07:04,927 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) [2023-12-21 20:07:04,928 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 [2023-12-21 20:07:06,319 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2023-12-21 20:07:06,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 20:07:06,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 20:07:06,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:07:06,682 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-21 20:07:06,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:07:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-21 20:07:08,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:07:08,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1638472587] [2023-12-21 20:07:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1638472587] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:07:08,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:07:08,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 55 [2023-12-21 20:07:08,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595515861] [2023-12-21 20:07:08,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:07:08,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-12-21 20:07:08,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:07:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-12-21 20:07:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=838, Invalid=2242, Unknown=0, NotChecked=0, Total=3080 [2023-12-21 20:07:08,299 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 56 states, 56 states have (on average 1.125) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:07:20,680 INFO L93 Difference]: Finished difference Result 248 states and 293 transitions. [2023-12-21 20:07:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-21 20:07:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 1.125) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-12-21 20:07:20,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:07:20,682 INFO L225 Difference]: With dead ends: 248 [2023-12-21 20:07:20,682 INFO L226 Difference]: Without dead ends: 227 [2023-12-21 20:07:20,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=2294, Invalid=4348, Unknown=0, NotChecked=0, Total=6642 [2023-12-21 20:07:20,684 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 1741 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 3081 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 3994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 3081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-21 20:07:20,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 2190 Invalid, 3994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [913 Valid, 3081 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-21 20:07:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-21 20:07:20,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 91. [2023-12-21 20:07:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.0333333333333334) internal successors, (93), 90 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:20,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 93 transitions. [2023-12-21 20:07:20,696 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 93 transitions. Word has length 47 [2023-12-21 20:07:20,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:07:20,697 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 93 transitions. [2023-12-21 20:07:20,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 1.125) internal successors, (63), 55 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:20,697 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 93 transitions. [2023-12-21 20:07:20,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-21 20:07:20,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:07:20,698 INFO L195 NwaCegarLoop]: trace histogram [54, 27, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:07:20,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-21 20:07:20,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-21 20:07:20,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:07:20,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:07:20,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2119512726, now seen corresponding path program 6 times [2023-12-21 20:07:20,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:07:20,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345301380] [2023-12-21 20:07:20,909 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-12-21 20:07:20,909 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 [2023-12-21 20:07:20,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:07:20,910 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) [2023-12-21 20:07:20,910 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 [2023-12-21 20:07:27,252 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2023-12-21 20:07:27,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 20:07:27,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-21 20:07:27,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:07:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 1485 trivial. 0 not checked. [2023-12-21 20:07:27,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:07:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 1485 trivial. 0 not checked. [2023-12-21 20:07:29,747 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:07:29,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345301380] [2023-12-21 20:07:29,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345301380] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:07:29,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:07:29,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 58 [2023-12-21 20:07:29,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312716097] [2023-12-21 20:07:29,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:07:29,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-21 20:07:29,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:07:29,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-21 20:07:29,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=897, Invalid=2409, Unknown=0, NotChecked=0, Total=3306 [2023-12-21 20:07:29,750 INFO L87 Difference]: Start difference. First operand 91 states and 93 transitions. Second operand has 58 states, 58 states have (on average 1.1206896551724137) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:07:44,220 INFO L93 Difference]: Finished difference Result 433 states and 467 transitions. [2023-12-21 20:07:44,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-21 20:07:44,221 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 1.1206896551724137) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 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 89 [2023-12-21 20:07:44,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:07:44,222 INFO L225 Difference]: With dead ends: 433 [2023-12-21 20:07:44,222 INFO L226 Difference]: Without dead ends: 398 [2023-12-21 20:07:44,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=2521, Invalid=4789, Unknown=0, NotChecked=0, Total=7310 [2023-12-21 20:07:44,224 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 3332 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 3340 mSolverCounterSat, 1724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3332 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 5064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1724 IncrementalHoareTripleChecker+Valid, 3340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-21 20:07:44,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3332 Valid, 2437 Invalid, 5064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1724 Valid, 3340 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-21 20:07:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-12-21 20:07:44,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 122. [2023-12-21 20:07:44,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 121 states have (on average 1.024793388429752) internal successors, (124), 121 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:44,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2023-12-21 20:07:44,241 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 89 [2023-12-21 20:07:44,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:07:44,241 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2023-12-21 20:07:44,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 1.1206896551724137) internal successors, (65), 58 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:07:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2023-12-21 20:07:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 20:07:44,243 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:07:44,243 INFO L195 NwaCegarLoop]: trace histogram [56, 56, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:07:44,255 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 [2023-12-21 20:07:44,448 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 [2023-12-21 20:07:44,448 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:07:44,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:07:44,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1729084027, now seen corresponding path program 7 times [2023-12-21 20:07:44,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:07:44,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288174328] [2023-12-21 20:07:44,450 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-21 20:07:44,450 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 [2023-12-21 20:07:44,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:07:44,451 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) [2023-12-21 20:07:44,468 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 [2023-12-21 20:07:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 20:07:45,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-21 20:07:45,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:07:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2023-12-21 20:07:46,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:07:52,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 0 proven. 1596 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2023-12-21 20:07:52,421 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:07:52,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288174328] [2023-12-21 20:07:52,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288174328] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:07:52,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:07:52,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 115 [2023-12-21 20:07:52,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586265437] [2023-12-21 20:07:52,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:07:52,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2023-12-21 20:07:52,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:07:52,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2023-12-21 20:07:52,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3478, Invalid=9862, Unknown=0, NotChecked=0, Total=13340 [2023-12-21 20:07:52,426 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand has 116 states, 116 states have (on average 1.0603448275862069) internal successors, (123), 115 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:09:34,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 20:09:34,386 INFO L93 Difference]: Finished difference Result 531 states and 593 transitions. [2023-12-21 20:09:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2023-12-21 20:09:34,387 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 1.0603448275862069) internal successors, (123), 115 states have internal predecessors, (123), 0 states have call successors, (0), 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 120 [2023-12-21 20:09:34,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 20:09:34,388 INFO L225 Difference]: With dead ends: 531 [2023-12-21 20:09:34,388 INFO L226 Difference]: Without dead ends: 467 [2023-12-21 20:09:34,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1540 ImplicationChecksByTransitivity, 92.6s TimeCoverageRelationStatistics Valid=9974, Invalid=19438, Unknown=0, NotChecked=0, Total=29412 [2023-12-21 20:09:34,393 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 5861 mSDsluCounter, 9576 mSDsCounter, 0 mSdLazyCounter, 13345 mSolverCounterSat, 2990 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5861 SdHoareTripleChecker+Valid, 9750 SdHoareTripleChecker+Invalid, 16335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2990 IncrementalHoareTripleChecker+Valid, 13345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2023-12-21 20:09:34,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5861 Valid, 9750 Invalid, 16335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2990 Valid, 13345 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2023-12-21 20:09:34,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-21 20:09:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 181. [2023-12-21 20:09:34,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.0166666666666666) internal successors, (183), 180 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:09:34,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 183 transitions. [2023-12-21 20:09:34,410 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 183 transitions. Word has length 120 [2023-12-21 20:09:34,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 20:09:34,410 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 183 transitions. [2023-12-21 20:09:34,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 1.0603448275862069) internal successors, (123), 115 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 20:09:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 183 transitions. [2023-12-21 20:09:34,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-21 20:09:34,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 20:09:34,412 INFO L195 NwaCegarLoop]: trace histogram [114, 57, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 20:09:34,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-21 20:09:34,616 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 [2023-12-21 20:09:34,617 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 20:09:34,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 20:09:34,617 INFO L85 PathProgramCache]: Analyzing trace with hash -848775990, now seen corresponding path program 8 times [2023-12-21 20:09:34,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-21 20:09:34,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46608875] [2023-12-21 20:09:34,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-21 20:09:34,618 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 [2023-12-21 20:09:34,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-21 20:09:34,619 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) [2023-12-21 20:09:34,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-21 20:09:35,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-21 20:09:35,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-21 20:09:35,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 2310 conjuncts, 116 conjunts are in the unsatisfiable core [2023-12-21 20:09:35,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 20:09:39,909 INFO L134 CoverageAnalysis]: Checked inductivity of 8208 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-12-21 20:09:39,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 20:10:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 8208 backedges. 0 proven. 6555 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2023-12-21 20:10:05,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-21 20:10:05,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46608875] [2023-12-21 20:10:05,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46608875] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 20:10:05,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 20:10:05,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 116] total 231 [2023-12-21 20:10:05,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130186418] [2023-12-21 20:10:05,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 20:10:05,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 232 states [2023-12-21 20:10:05,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-21 20:10:05,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 232 interpolants. [2023-12-21 20:10:05,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13686, Invalid=39906, Unknown=0, NotChecked=0, Total=53592 [2023-12-21 20:10:05,743 INFO L87 Difference]: Start difference. First operand 181 states and 183 transitions. Second operand has 232 states, 232 states have (on average 1.0301724137931034) internal successors, (239), 231 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-21 20:21:34,771 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 20:21:34,771 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 [2023-12-21 20:21:34,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2023-12-21 20:21:34,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 286 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1596 ImplicationChecksByTransitivity, 673.9s TimeCoverageRelationStatistics Valid=26678, Invalid=55978, Unknown=0, NotChecked=0, Total=82656 [2023-12-21 20:21:34,891 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2023-12-21 20:21:34,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 13398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13397 Invalid, 0 Unknown, 0 Unchecked, 34.3s Time] [2023-12-21 20:21:34,892 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 20:21:34,914 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 [2023-12-21 20:21:35,104 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 [2023-12-21 20:21:35,105 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (181states) and FLOYD_HOARE automaton (currently 173 states, 232 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 288 known predicates. [2023-12-21 20:21:35,108 INFO L445 BasicCegarLoop]: Path program histogram: [8, 1] [2023-12-21 20:21:35,110 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 20:21:35,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 08:21:35 BoogieIcfgContainer [2023-12-21 20:21:35,112 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 20:21:35,112 INFO L158 Benchmark]: Toolchain (without parser) took 876623.09ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 199.6MB in the beginning and 83.7MB in the end (delta: 115.9MB). Peak memory consumption was 167.5MB. Max. memory is 8.0GB. [2023-12-21 20:21:35,112 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 197.1MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 20:21:35,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.28ms. Allocated memory is still 250.6MB. Free memory was 199.3MB in the beginning and 188.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-21 20:21:35,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.33ms. Allocated memory is still 250.6MB. Free memory was 188.1MB in the beginning and 186.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 20:21:35,113 INFO L158 Benchmark]: Boogie Preprocessor took 27.50ms. Allocated memory is still 250.6MB. Free memory was 186.4MB in the beginning and 184.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-21 20:21:35,113 INFO L158 Benchmark]: RCFGBuilder took 289.08ms. Allocated memory is still 250.6MB. Free memory was 184.3MB in the beginning and 170.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-12-21 20:21:35,113 INFO L158 Benchmark]: TraceAbstraction took 876099.92ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 169.9MB in the beginning and 83.7MB in the end (delta: 86.3MB). Peak memory consumption was 137.1MB. Max. memory is 8.0GB. [2023-12-21 20:21:35,114 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 197.1MB. Free memory is still 145.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 176.28ms. Allocated memory is still 250.6MB. Free memory was 199.3MB in the beginning and 188.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.33ms. Allocated memory is still 250.6MB. Free memory was 188.1MB in the beginning and 186.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.50ms. Allocated memory is still 250.6MB. Free memory was 186.4MB in the beginning and 184.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 289.08ms. Allocated memory is still 250.6MB. Free memory was 184.3MB in the beginning and 170.7MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 876099.92ms. Allocated memory was 250.6MB in the beginning and 300.9MB in the end (delta: 50.3MB). Free memory was 169.9MB in the beginning and 83.7MB in the end (delta: 86.3MB). Peak memory consumption was 137.1MB. 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: 13]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 13). Cancelled while NwaCegarLoop was constructing difference of abstraction (181states) and FLOYD_HOARE automaton (currently 173 states, 232 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 288 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 876.1s, OverallIterations: 9, TraceHistogramMax: 114, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 821.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11747 SdHoareTripleChecker+Valid, 61.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11747 mSDsluCounter, 15118 SdHoareTripleChecker+Invalid, 52.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14673 mSDsCounter, 6080 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34297 IncrementalHoareTripleChecker+Invalid, 40377 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6080 mSolverCounterUnsat, 445 mSDtfsCounter, 34297 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1243 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 696 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3926 ImplicationChecksByTransitivity, 790.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=181occurred in iteration=8, InterpolantAutomatonStates: 295, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 862 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 8.5s SatisfiabilityAnalysisTime, 43.2s InterpolantComputationTime, 522 NumberOfCodeBlocks, 518 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 1019 ConstructedInterpolants, 0 QuantifiedInterpolants, 2743 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6387 ConjunctsInSsa, 265 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 9924/27892 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