/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/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 19:39:32,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 19:39:32,835 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 19:39:32,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 19:39:32,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 19:39:32,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 19:39:32,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 19:39:32,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 19:39:32,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 19:39:32,866 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 19:39:32,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 19:39:32,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 19:39:32,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 19:39:32,868 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 19:39:32,868 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 19:39:32,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 19:39:32,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 19:39:32,869 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 19:39:32,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 19:39:32,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 19:39:32,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 19:39:32,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 19:39:32,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 19:39:32,870 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 19:39:32,870 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 19:39:32,870 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 19:39:32,870 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 19:39:32,870 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 19:39:32,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 19:39:32,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 19:39:32,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 19:39:32,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 19:39:32,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 19:39:32,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 19:39:32,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 19:39:32,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 19:39:32,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 19:39:32,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 19:39:32,872 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 19:39:32,873 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 19:39:32,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 19:39:32,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 19:39:32,873 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 19:39:32,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 19:39:32,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 19:39:32,873 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 19:39:32,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 19:39:33,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 19:39:33,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 19:39:33,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 19:39:33,050 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 19:39:33,050 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 19:39:33,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i [2023-12-23 19:39:34,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 19:39:34,247 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 19:39:34,247 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i [2023-12-23 19:39:34,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317149d60/dc5456876b7745c8a79db33c2d947039/FLAGc71dd629f [2023-12-23 19:39:34,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/317149d60/dc5456876b7745c8a79db33c2d947039 [2023-12-23 19:39:34,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 19:39:34,268 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 19:39:34,269 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 19:39:34,269 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 19:39:34,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 19:39:34,275 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,276 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37812fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34, skipping insertion in model container [2023-12-23 19:39:34,276 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 19:39:34,403 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i[915,928] [2023-12-23 19:39:34,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 19:39:34,444 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 19:39:34,467 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i[915,928] [2023-12-23 19:39:34,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 19:39:34,497 INFO L206 MainTranslator]: Completed translation [2023-12-23 19:39:34,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34 WrapperNode [2023-12-23 19:39:34,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 19:39:34,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 19:39:34,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 19:39:34,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 19:39:34,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,528 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2023-12-23 19:39:34,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 19:39:34,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 19:39:34,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 19:39:34,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 19:39:34,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,539 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,547 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 19:39:34,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 19:39:34,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 19:39:34,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 19:39:34,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 19:39:34,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (1/1) ... [2023-12-23 19:39:34,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 19:39:34,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 19:39:34,582 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) [2023-12-23 19:39:34,596 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 [2023-12-23 19:39:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 19:39:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 19:39:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 19:39:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 19:39:34,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 19:39:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 19:39:34,656 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 19:39:34,658 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 19:39:34,849 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 19:39:34,879 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 19:39:34,879 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 19:39:34,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:39:34 BoogieIcfgContainer [2023-12-23 19:39:34,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 19:39:34,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 19:39:34,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 19:39:34,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 19:39:34,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:39:34" (1/3) ... [2023-12-23 19:39:34,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a83a1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:39:34, skipping insertion in model container [2023-12-23 19:39:34,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:39:34" (2/3) ... [2023-12-23 19:39:34,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a83a1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:39:34, skipping insertion in model container [2023-12-23 19:39:34,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:39:34" (3/3) ... [2023-12-23 19:39:34,885 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-2.i [2023-12-23 19:39:34,896 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 19:39:34,896 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 19:39:34,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 19:39:34,927 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;@7969a551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 19:39:34,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 19:39:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-23 19:39:34,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-23 19:39:34,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:39:34,936 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:39:34,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:39:34,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:39:34,940 INFO L85 PathProgramCache]: Analyzing trace with hash 2122619662, now seen corresponding path program 1 times [2023-12-23 19:39:34,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:39:34,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286653394] [2023-12-23 19:39:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:39:34,948 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 [2023-12-23 19:39:34,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:39:34,950 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) [2023-12-23 19:39:34,957 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 [2023-12-23 19:39:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:39:35,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 19:39:35,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:39:35,116 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-12-23 19:39:35,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:39:35,117 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:39:35,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286653394] [2023-12-23 19:39:35,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1286653394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:39:35,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:39:35,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 19:39:35,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252125150] [2023-12-23 19:39:35,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:39:35,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 19:39:35,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:39:35,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 19:39:35,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 19:39:35,139 INFO L87 Difference]: Start difference. First operand has 40 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-23 19:39:35,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:39:35,169 INFO L93 Difference]: Finished difference Result 77 states and 136 transitions. [2023-12-23 19:39:35,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 19:39:35,172 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 85 [2023-12-23 19:39:35,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:39:35,176 INFO L225 Difference]: With dead ends: 77 [2023-12-23 19:39:35,176 INFO L226 Difference]: Without dead ends: 38 [2023-12-23 19:39:35,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 19:39:35,181 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-23 19:39:35,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-23 19:39:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-12-23 19:39:35,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-12-23 19:39:35,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-23 19:39:35,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 57 transitions. [2023-12-23 19:39:35,206 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 57 transitions. Word has length 85 [2023-12-23 19:39:35,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:39:35,206 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 57 transitions. [2023-12-23 19:39:35,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-23 19:39:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 57 transitions. [2023-12-23 19:39:35,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-23 19:39:35,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:39:35,209 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:39:35,217 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 [2023-12-23 19:39:35,413 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 [2023-12-23 19:39:35,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:39:35,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:39:35,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1434352078, now seen corresponding path program 1 times [2023-12-23 19:39:35,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:39:35,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285248310] [2023-12-23 19:39:35,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:39:35,418 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 [2023-12-23 19:39:35,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:39:35,420 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) [2023-12-23 19:39:35,422 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 [2023-12-23 19:39:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:39:35,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 19:39:35,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:42:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-23 19:42:00,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:42:00,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:42:00,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [285248310] [2023-12-23 19:42:00,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [285248310] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:42:00,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:42:00,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-23 19:42:00,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656455321] [2023-12-23 19:42:00,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:42:00,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 19:42:00,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:42:00,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 19:42:00,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-23 19:42:00,494 INFO L87 Difference]: Start difference. First operand 38 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:42:00,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:42:00,738 INFO L93 Difference]: Finished difference Result 63 states and 89 transitions. [2023-12-23 19:42:00,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 19:42:00,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2023-12-23 19:42:00,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:42:00,739 INFO L225 Difference]: With dead ends: 63 [2023-12-23 19:42:00,739 INFO L226 Difference]: Without dead ends: 61 [2023-12-23 19:42:00,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-23 19:42:00,741 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 29 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 19:42:00,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 156 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 19:42:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-23 19:42:00,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2023-12-23 19:42:00,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 26 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-23 19:42:00,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 63 transitions. [2023-12-23 19:42:00,747 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 63 transitions. Word has length 85 [2023-12-23 19:42:00,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:42:00,748 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 63 transitions. [2023-12-23 19:42:00,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:42:00,748 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2023-12-23 19:42:00,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-23 19:42:00,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:42:00,750 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:42:00,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 19:42:00,953 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 [2023-12-23 19:42:00,955 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:42:00,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:42:00,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1491610380, now seen corresponding path program 1 times [2023-12-23 19:42:00,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:42:00,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738778256] [2023-12-23 19:42:00,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:42:00,956 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 [2023-12-23 19:42:00,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:42:00,958 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) [2023-12-23 19:42:00,961 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 [2023-12-23 19:42:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:42:01,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 19:42:01,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:42:01,202 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-23 19:42:01,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:42:01,202 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:42:01,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738778256] [2023-12-23 19:42:01,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738778256] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:42:01,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:42:01,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 19:42:01,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242636823] [2023-12-23 19:42:01,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:42:01,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 19:42:01,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:42:01,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 19:42:01,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 19:42:01,204 INFO L87 Difference]: Start difference. First operand 42 states and 63 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:42:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:42:01,354 INFO L93 Difference]: Finished difference Result 124 states and 186 transitions. [2023-12-23 19:42:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 19:42:01,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2023-12-23 19:42:01,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:42:01,358 INFO L225 Difference]: With dead ends: 124 [2023-12-23 19:42:01,358 INFO L226 Difference]: Without dead ends: 83 [2023-12-23 19:42:01,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 19:42:01,359 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 27 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-23 19:42:01,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 151 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-23 19:42:01,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-12-23 19:42:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 69. [2023-12-23 19:42:01,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-23 19:42:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 103 transitions. [2023-12-23 19:42:01,380 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 103 transitions. Word has length 85 [2023-12-23 19:42:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:42:01,381 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 103 transitions. [2023-12-23 19:42:01,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:42:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 103 transitions. [2023-12-23 19:42:01,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-23 19:42:01,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:42:01,382 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:42:01,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-23 19:42:01,585 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 [2023-12-23 19:42:01,585 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:42:01,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:42:01,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1505881337, now seen corresponding path program 1 times [2023-12-23 19:42:01,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:42:01,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257503350] [2023-12-23 19:42:01,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:42:01,592 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 [2023-12-23 19:42:01,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:42:01,593 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) [2023-12-23 19:42:01,631 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 [2023-12-23 19:42:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:42:01,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-23 19:42:01,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:44:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-23 19:44:32,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:44:32,836 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:44:32,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257503350] [2023-12-23 19:44:32,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257503350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:44:32,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:44:32,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-23 19:44:32,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241277233] [2023-12-23 19:44:32,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:44:32,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 19:44:32,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:44:32,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 19:44:32,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 19:44:32,846 INFO L87 Difference]: Start difference. First operand 69 states and 103 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:44:33,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:44:33,147 INFO L93 Difference]: Finished difference Result 94 states and 133 transitions. [2023-12-23 19:44:33,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-23 19:44:33,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-23 19:44:33,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:44:33,154 INFO L225 Difference]: With dead ends: 94 [2023-12-23 19:44:33,155 INFO L226 Difference]: Without dead ends: 92 [2023-12-23 19:44:33,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-23 19:44:33,161 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 34 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 19:44:33,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 19:44:33,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-23 19:44:33,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 70. [2023-12-23 19:44:33,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-23 19:44:33,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 105 transitions. [2023-12-23 19:44:33,188 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 105 transitions. Word has length 86 [2023-12-23 19:44:33,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:44:33,188 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 105 transitions. [2023-12-23 19:44:33,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:44:33,189 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 105 transitions. [2023-12-23 19:44:33,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-23 19:44:33,189 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:44:33,190 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:44:33,196 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 [2023-12-23 19:44:33,390 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 [2023-12-23 19:44:33,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:44:33,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:44:33,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1505940919, now seen corresponding path program 1 times [2023-12-23 19:44:33,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:44:33,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189550279] [2023-12-23 19:44:33,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:44:33,393 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 [2023-12-23 19:44:33,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:44:33,395 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) [2023-12-23 19:44:33,396 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 [2023-12-23 19:44:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:44:33,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-23 19:44:33,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:46:57,803 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-23 19:46:57,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:46:57,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:46:57,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189550279] [2023-12-23 19:46:57,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189550279] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:46:57,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:46:57,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-23 19:46:57,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949531679] [2023-12-23 19:46:57,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:46:57,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 19:46:57,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:46:57,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 19:46:57,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 19:46:57,805 INFO L87 Difference]: Start difference. First operand 70 states and 105 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:46:58,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:46:58,099 INFO L93 Difference]: Finished difference Result 92 states and 131 transitions. [2023-12-23 19:46:58,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-23 19:46:58,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-23 19:46:58,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:46:58,101 INFO L225 Difference]: With dead ends: 92 [2023-12-23 19:46:58,101 INFO L226 Difference]: Without dead ends: 90 [2023-12-23 19:46:58,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-23 19:46:58,102 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 32 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-23 19:46:58,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 128 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-23 19:46:58,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-23 19:46:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 70. [2023-12-23 19:46:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-23 19:46:58,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 105 transitions. [2023-12-23 19:46:58,111 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 105 transitions. Word has length 86 [2023-12-23 19:46:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:46:58,112 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 105 transitions. [2023-12-23 19:46:58,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:46:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 105 transitions. [2023-12-23 19:46:58,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-23 19:46:58,113 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:46:58,113 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:46:58,116 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 [2023-12-23 19:46:58,319 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 [2023-12-23 19:46:58,320 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:46:58,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:46:58,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1098757531, now seen corresponding path program 1 times [2023-12-23 19:46:58,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:46:58,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1486948260] [2023-12-23 19:46:58,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:46:58,321 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 [2023-12-23 19:46:58,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:46:58,326 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) [2023-12-23 19:46:58,327 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 [2023-12-23 19:46:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:46:58,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 19:46:58,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:52:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-23 19:52:04,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:52:04,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:52:04,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1486948260] [2023-12-23 19:52:04,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1486948260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:52:04,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:52:04,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-23 19:52:04,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706455682] [2023-12-23 19:52:04,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:52:04,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 19:52:04,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:52:04,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 19:52:04,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 19:52:04,247 INFO L87 Difference]: Start difference. First operand 70 states and 105 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:52:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:52:04,491 INFO L93 Difference]: Finished difference Result 96 states and 137 transitions. [2023-12-23 19:52:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-23 19:52:04,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2023-12-23 19:52:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:52:04,493 INFO L225 Difference]: With dead ends: 96 [2023-12-23 19:52:04,493 INFO L226 Difference]: Without dead ends: 94 [2023-12-23 19:52:04,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-23 19:52:04,494 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 46 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 19:52:04,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 131 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 19:52:04,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-23 19:52:04,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 72. [2023-12-23 19:52:04,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 41 states have internal predecessors, (53), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-23 19:52:04,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 109 transitions. [2023-12-23 19:52:04,501 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 109 transitions. Word has length 86 [2023-12-23 19:52:04,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:52:04,501 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 109 transitions. [2023-12-23 19:52:04,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:52:04,502 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 109 transitions. [2023-12-23 19:52:04,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-23 19:52:04,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:52:04,503 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:52:04,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-23 19:52:04,706 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 [2023-12-23 19:52:04,706 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:52:04,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:52:04,707 INFO L85 PathProgramCache]: Analyzing trace with hash -547581533, now seen corresponding path program 1 times [2023-12-23 19:52:04,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:52:04,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675139377] [2023-12-23 19:52:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:52:04,707 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 [2023-12-23 19:52:04,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:52:04,708 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) [2023-12-23 19:52:04,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-23 19:52:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:52:04,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 19:52:04,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 19:53:20,211 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-23 19:53:20,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 19:53:20,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 19:53:20,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675139377] [2023-12-23 19:53:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675139377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 19:53:20,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 19:53:20,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-23 19:53:20,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165782696] [2023-12-23 19:53:20,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 19:53:20,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 19:53:20,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 19:53:20,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 19:53:20,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 19:53:20,216 INFO L87 Difference]: Start difference. First operand 72 states and 109 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:53:20,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 19:53:20,484 INFO L93 Difference]: Finished difference Result 102 states and 145 transitions. [2023-12-23 19:53:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-23 19:53:20,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2023-12-23 19:53:20,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 19:53:20,489 INFO L225 Difference]: With dead ends: 102 [2023-12-23 19:53:20,489 INFO L226 Difference]: Without dead ends: 100 [2023-12-23 19:53:20,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-12-23 19:53:20,491 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 42 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 19:53:20,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 137 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 19:53:20,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-23 19:53:20,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 73. [2023-12-23 19:53:20,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 42 states have internal predecessors, (55), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-23 19:53:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2023-12-23 19:53:20,507 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 87 [2023-12-23 19:53:20,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 19:53:20,507 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2023-12-23 19:53:20,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-23 19:53:20,507 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2023-12-23 19:53:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-23 19:53:20,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 19:53:20,508 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:53:20,519 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 [2023-12-23 19:53:20,713 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 [2023-12-23 19:53:20,713 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 19:53:20,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 19:53:20,714 INFO L85 PathProgramCache]: Analyzing trace with hash -545734491, now seen corresponding path program 1 times [2023-12-23 19:53:20,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 19:53:20,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282493333] [2023-12-23 19:53:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 19:53:20,716 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 [2023-12-23 19:53:20,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 19:53:20,717 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) [2023-12-23 19:53:20,718 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 [2023-12-23 19:53:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 19:53:20,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 19:53:20,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 19:54:13,625 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 19:54:13,629 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 19:54:13,633 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 [2023-12-23 19:54:13,634 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 [2023-12-23 19:54:13,834 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 [2023-12-23 19:54:13,834 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 88 with TraceHistMax 14,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-10-2-2-2-3-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-35-3-2-2-2-3-2-3-3-3-2-3-2-2-2-2-4-3-2-2-2-2-2-2-2-2-1 context. [2023-12-23 19:54:13,841 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 19:54:13,844 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 19:54:13,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 07:54:13 BoogieIcfgContainer [2023-12-23 19:54:13,845 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 19:54:13,846 INFO L158 Benchmark]: Toolchain (without parser) took 879577.95ms. Allocated memory was 268.4MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 226.9MB in the beginning and 928.2MB in the end (delta: -701.4MB). Peak memory consumption was 790.8MB. Max. memory is 8.0GB. [2023-12-23 19:54:13,846 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 223.3MB. Free memory is still 174.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 19:54:13,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.09ms. Allocated memory is still 268.4MB. Free memory was 226.5MB in the beginning and 213.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-23 19:54:13,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.91ms. Allocated memory is still 268.4MB. Free memory was 213.3MB in the beginning and 211.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 19:54:13,846 INFO L158 Benchmark]: Boogie Preprocessor took 30.20ms. Allocated memory is still 268.4MB. Free memory was 211.6MB in the beginning and 208.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 19:54:13,847 INFO L158 Benchmark]: RCFGBuilder took 320.65ms. Allocated memory is still 268.4MB. Free memory was 208.7MB in the beginning and 190.3MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 19:54:13,847 INFO L158 Benchmark]: TraceAbstraction took 878964.09ms. Allocated memory was 268.4MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 189.8MB in the beginning and 928.2MB in the end (delta: -738.4MB). Peak memory consumption was 753.0MB. Max. memory is 8.0GB. [2023-12-23 19:54:13,848 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 223.3MB. Free memory is still 174.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.09ms. Allocated memory is still 268.4MB. Free memory was 226.5MB in the beginning and 213.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.91ms. Allocated memory is still 268.4MB. Free memory was 213.3MB in the beginning and 211.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.20ms. Allocated memory is still 268.4MB. Free memory was 211.6MB in the beginning and 208.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 320.65ms. Allocated memory is still 268.4MB. Free memory was 208.7MB in the beginning and 190.3MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 878964.09ms. Allocated memory was 268.4MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 189.8MB in the beginning and 928.2MB in the end (delta: -738.4MB). Peak memory consumption was 753.0MB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 88 with TraceHistMax 14,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-10-2-2-2-3-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-35-3-2-2-2-3-2-3-3-3-2-3-2-2-2-2-4-3-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 878.9s, OverallIterations: 8, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 210 mSDsluCounter, 910 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 572 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 502 IncrementalHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 338 mSDtfsCounter, 502 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 599 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=7, InterpolantAutomatonStates: 40, 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, 7 MinimizatonAttempts, 124 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 822.1s InterpolantComputationTime, 600 NumberOfCodeBlocks, 600 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 593 ConstructedInterpolants, 0 QuantifiedInterpolants, 2618 SizeOfPredicates, 77 NumberOfNonLiveVariables, 1025 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2548/2548 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