/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_fillercode_fillercodestructure_filler-pe-cn_file-47.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 08:34:20,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 08:34:20,412 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 08:34:20,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 08:34:20,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 08:34:20,455 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 08:34:20,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 08:34:20,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 08:34:20,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 08:34:20,464 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 08:34:20,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 08:34:20,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 08:34:20,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 08:34:20,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 08:34:20,467 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 08:34:20,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 08:34:20,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 08:34:20,468 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 08:34:20,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 08:34:20,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 08:34:20,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 08:34:20,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 08:34:20,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 08:34:20,472 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 08:34:20,473 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 08:34:20,473 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 08:34:20,473 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 08:34:20,473 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 08:34:20,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 08:34:20,474 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 08:34:20,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 08:34:20,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 08:34:20,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 08:34:20,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 08:34:20,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 08:34:20,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 08:34:20,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 08:34:20,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 08:34:20,476 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 08:34:20,476 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 08:34:20,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 08:34:20,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 08:34:20,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 08:34:20,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 08:34:20,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 08:34:20,477 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 08:34:20,477 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 08:34:20,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 08:34:20,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 08:34:20,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 08:34:20,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 08:34:20,692 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 08:34:20,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-47.i [2023-12-23 08:34:21,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 08:34:22,204 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 08:34:22,205 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-47.i [2023-12-23 08:34:22,214 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac801f98/3a8e276eca89417f9c92e932824d7488/FLAGc9876c5f0 [2023-12-23 08:34:22,235 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac801f98/3a8e276eca89417f9c92e932824d7488 [2023-12-23 08:34:22,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 08:34:22,239 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 08:34:22,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 08:34:22,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 08:34:22,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 08:34:22,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b84982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22, skipping insertion in model container [2023-12-23 08:34:22,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,287 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 08:34:22,424 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_fillercode_fillercodestructure_filler-pe-cn_file-47.i[919,932] [2023-12-23 08:34:22,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 08:34:22,518 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 08:34:22,528 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_fillercode_fillercodestructure_filler-pe-cn_file-47.i[919,932] [2023-12-23 08:34:22,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 08:34:22,585 INFO L206 MainTranslator]: Completed translation [2023-12-23 08:34:22,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22 WrapperNode [2023-12-23 08:34:22,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 08:34:22,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 08:34:22,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 08:34:22,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 08:34:22,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,605 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,641 INFO L138 Inliner]: procedures = 27, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 246 [2023-12-23 08:34:22,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 08:34:22,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 08:34:22,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 08:34:22,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 08:34:22,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,656 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,676 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 08:34:22,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,677 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 08:34:22,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 08:34:22,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 08:34:22,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 08:34:22,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (1/1) ... [2023-12-23 08:34:22,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 08:34:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 08:34:22,754 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 08:34:22,787 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 08:34:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 08:34:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 08:34:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 08:34:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 08:34:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 08:34:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 08:34:22,911 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 08:34:22,912 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 08:34:36,353 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 08:34:36,448 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 08:34:36,448 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 08:34:36,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:34:36 BoogieIcfgContainer [2023-12-23 08:34:36,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 08:34:36,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 08:34:36,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 08:34:36,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 08:34:36,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:34:22" (1/3) ... [2023-12-23 08:34:36,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d5c586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:34:36, skipping insertion in model container [2023-12-23 08:34:36,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:34:22" (2/3) ... [2023-12-23 08:34:36,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d5c586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:34:36, skipping insertion in model container [2023-12-23 08:34:36,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:34:36" (3/3) ... [2023-12-23 08:34:36,458 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-47.i [2023-12-23 08:34:36,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 08:34:36,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 08:34:36,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 08:34:36,521 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;@1384ca71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 08:34:36,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 08:34:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 08:34:36,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 08:34:36,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:34:36,541 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:36,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:34:36,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:34:36,546 INFO L85 PathProgramCache]: Analyzing trace with hash 343488966, now seen corresponding path program 1 times [2023-12-23 08:34:36,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:34:36,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692542299] [2023-12-23 08:34:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:34:36,557 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 08:34:36,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:34:36,558 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 08:34:36,562 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 08:34:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:34:37,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 08:34:37,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:34:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1474 proven. 0 refuted. 0 times theorem prover too weak. 1970 trivial. 0 not checked. [2023-12-23 08:34:37,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:34:37,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:34:37,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692542299] [2023-12-23 08:34:37,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692542299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:34:37,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:34:37,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 08:34:37,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863130706] [2023-12-23 08:34:37,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:34:37,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 08:34:37,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:34:37,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 08:34:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 08:34:37,699 INFO L87 Difference]: Start difference. First operand has 105 states, 60 states have (on average 1.45) internal successors, (87), 61 states have internal predecessors, (87), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 08:34:42,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:34:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:34:42,401 INFO L93 Difference]: Finished difference Result 207 states and 382 transitions. [2023-12-23 08:34:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 08:34:42,654 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 256 [2023-12-23 08:34:42,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:34:42,661 INFO L225 Difference]: With dead ends: 207 [2023-12-23 08:34:42,661 INFO L226 Difference]: Without dead ends: 103 [2023-12-23 08:34:42,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 255 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 08:34:42,668 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-23 08:34:42,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-23 08:34:42,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-12-23 08:34:42,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2023-12-23 08:34:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 59 states have internal predecessors, (81), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 08:34:42,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 165 transitions. [2023-12-23 08:34:42,711 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 165 transitions. Word has length 256 [2023-12-23 08:34:42,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:34:42,712 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 165 transitions. [2023-12-23 08:34:42,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 08:34:42,712 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 165 transitions. [2023-12-23 08:34:42,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 08:34:42,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:34:42,718 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:34:42,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 08:34:42,932 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 08:34:42,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:34:42,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:34:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1378308926, now seen corresponding path program 1 times [2023-12-23 08:34:42,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:34:42,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [262047080] [2023-12-23 08:34:42,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:34:42,935 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 08:34:42,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:34:42,936 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 08:34:42,942 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 08:34:43,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:34:43,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 08:34:43,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:34:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 357 proven. 117 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2023-12-23 08:34:47,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:34:48,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:34:48,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [262047080] [2023-12-23 08:34:48,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [262047080] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:34:48,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1476692101] [2023-12-23 08:34:48,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:34:48,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 08:34:48,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 08:34:48,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 08:34:48,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 08:34:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:34:50,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 08:34:50,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:34:54,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 08:34:54,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:34:54,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1476692101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:34:54,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 08:34:54,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-12-23 08:34:54,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515867928] [2023-12-23 08:34:54,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:34:54,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 08:34:54,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:34:54,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 08:34:54,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-23 08:34:54,666 INFO L87 Difference]: Start difference. First operand 103 states and 165 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 08:35:00,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:04,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:08,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:12,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:16,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:20,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:24,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:29,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:33,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:37,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:41,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:35:41,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:35:41,747 INFO L93 Difference]: Finished difference Result 500 states and 801 transitions. [2023-12-23 08:35:41,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-23 08:35:41,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 256 [2023-12-23 08:35:41,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:35:41,754 INFO L225 Difference]: With dead ends: 500 [2023-12-23 08:35:41,754 INFO L226 Difference]: Without dead ends: 398 [2023-12-23 08:35:41,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-12-23 08:35:41,757 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 391 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 259 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2023-12-23 08:35:41,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 913 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 31 Invalid, 11 Unknown, 0 Unchecked, 46.7s Time] [2023-12-23 08:35:41,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-12-23 08:35:41,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 215. [2023-12-23 08:35:41,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 128 states have (on average 1.3671875) internal successors, (175), 128 states have internal predecessors, (175), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-23 08:35:41,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 343 transitions. [2023-12-23 08:35:41,840 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 343 transitions. Word has length 256 [2023-12-23 08:35:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:35:41,841 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 343 transitions. [2023-12-23 08:35:41,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 08:35:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 343 transitions. [2023-12-23 08:35:41,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-12-23 08:35:41,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:35:41,845 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:35:41,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-23 08:35:42,068 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 08:35:42,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 08:35:42,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:35:42,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:35:42,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2099009920, now seen corresponding path program 1 times [2023-12-23 08:35:42,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:35:42,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1009007295] [2023-12-23 08:35:42,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:35:42,251 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 08:35:42,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:35:42,252 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 08:35:42,253 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 08:35:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:35:43,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-23 08:35:43,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:35:54,235 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 08:35:54,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:35:54,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:35:54,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1009007295] [2023-12-23 08:35:54,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1009007295] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:35:54,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:35:54,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 08:35:54,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137914331] [2023-12-23 08:35:54,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:35:54,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 08:35:54,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:35:54,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 08:35:54,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 08:35:54,238 INFO L87 Difference]: Start difference. First operand 215 states and 343 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 08:35:59,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:04,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:09,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:14,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:19,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:24,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:24,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:36:24,415 INFO L93 Difference]: Finished difference Result 423 states and 671 transitions. [2023-12-23 08:36:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 08:36:24,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 256 [2023-12-23 08:36:24,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:36:24,659 INFO L225 Difference]: With dead ends: 423 [2023-12-23 08:36:24,659 INFO L226 Difference]: Without dead ends: 209 [2023-12-23 08:36:24,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 08:36:24,662 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 84 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 85 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2023-12-23 08:36:24,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 469 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 20 Invalid, 6 Unknown, 0 Unchecked, 30.0s Time] [2023-12-23 08:36:24,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-23 08:36:24,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 187. [2023-12-23 08:36:24,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 100 states have (on average 1.26) internal successors, (126), 100 states have internal predecessors, (126), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-23 08:36:24,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 294 transitions. [2023-12-23 08:36:24,720 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 294 transitions. Word has length 256 [2023-12-23 08:36:24,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:36:24,721 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 294 transitions. [2023-12-23 08:36:24,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 08:36:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 294 transitions. [2023-12-23 08:36:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-23 08:36:24,730 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:36:24,730 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:36:24,759 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 08:36:24,943 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 08:36:24,944 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:36:24,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:36:24,944 INFO L85 PathProgramCache]: Analyzing trace with hash -150718041, now seen corresponding path program 1 times [2023-12-23 08:36:24,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:36:24,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361217245] [2023-12-23 08:36:24,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:36:24,945 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 08:36:24,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:36:24,947 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 08:36:24,949 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 08:36:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:36:25,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 08:36:25,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:36:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 357 proven. 117 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2023-12-23 08:36:29,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:36:29,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:36:29,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361217245] [2023-12-23 08:36:29,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361217245] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:36:29,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1991577446] [2023-12-23 08:36:29,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:36:29,938 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 08:36:29,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 08:36:29,939 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 08:36:29,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-23 08:36:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:36:31,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 08:36:31,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:36:35,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 08:36:35,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:36:35,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1991577446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:36:35,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 08:36:35,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-23 08:36:35,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757054521] [2023-12-23 08:36:35,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:36:35,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 08:36:35,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:36:35,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 08:36:35,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-23 08:36:35,530 INFO L87 Difference]: Start difference. First operand 187 states and 294 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 08:36:40,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:45,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:50,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:54,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:36:59,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:03,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:07,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:08,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:37:08,201 INFO L93 Difference]: Finished difference Result 404 states and 639 transitions. [2023-12-23 08:37:08,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 08:37:08,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 258 [2023-12-23 08:37:08,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:37:08,205 INFO L225 Difference]: With dead ends: 404 [2023-12-23 08:37:08,205 INFO L226 Difference]: Without dead ends: 298 [2023-12-23 08:37:08,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-23 08:37:08,206 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 44 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2023-12-23 08:37:08,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 308 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 7 Unknown, 0 Unchecked, 32.6s Time] [2023-12-23 08:37:08,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-23 08:37:08,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2023-12-23 08:37:08,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 166 states have (on average 1.2951807228915662) internal successors, (215), 166 states have internal predecessors, (215), 126 states have call successors, (126), 3 states have call predecessors, (126), 3 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2023-12-23 08:37:08,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 467 transitions. [2023-12-23 08:37:08,241 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 467 transitions. Word has length 258 [2023-12-23 08:37:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:37:08,242 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 467 transitions. [2023-12-23 08:37:08,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 08:37:08,242 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 467 transitions. [2023-12-23 08:37:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-23 08:37:08,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:37:08,245 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:37:08,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-12-23 08:37:08,482 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 08:37:08,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 08:37:08,662 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:37:08,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:37:08,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1171786395, now seen corresponding path program 1 times [2023-12-23 08:37:08,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:37:08,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494522765] [2023-12-23 08:37:08,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:37:08,663 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 08:37:08,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:37:08,664 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 08:37:08,664 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 08:37:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:37:09,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 08:37:09,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:37:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 357 proven. 117 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2023-12-23 08:37:12,880 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:37:13,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:37:13,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494522765] [2023-12-23 08:37:13,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494522765] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:37:13,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1448143132] [2023-12-23 08:37:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:37:13,502 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 08:37:13,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 08:37:13,503 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 08:37:13,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-23 08:37:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:37:15,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 08:37:15,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:37:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 357 proven. 117 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2023-12-23 08:37:18,859 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:37:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1448143132] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:37:18,972 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 08:37:18,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2023-12-23 08:37:18,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079491081] [2023-12-23 08:37:18,972 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 08:37:18,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 08:37:18,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:37:18,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 08:37:18,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-23 08:37:18,975 INFO L87 Difference]: Start difference. First operand 296 states and 467 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 08:37:26,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:30,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:34,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:38,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:42,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:47,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:52,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:37:56,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:00,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:04,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:04,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:38:04,116 INFO L93 Difference]: Finished difference Result 528 states and 823 transitions. [2023-12-23 08:38:04,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 08:38:04,420 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 258 [2023-12-23 08:38:04,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:38:04,423 INFO L225 Difference]: With dead ends: 528 [2023-12-23 08:38:04,423 INFO L226 Difference]: Without dead ends: 314 [2023-12-23 08:38:04,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 556 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-12-23 08:38:04,425 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 94 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 12 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2023-12-23 08:38:04,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 324 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 276 Invalid, 10 Unknown, 0 Unchecked, 44.8s Time] [2023-12-23 08:38:04,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-23 08:38:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2023-12-23 08:38:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 175 states have (on average 1.2571428571428571) internal successors, (220), 175 states have internal predecessors, (220), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2023-12-23 08:38:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 472 transitions. [2023-12-23 08:38:04,466 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 472 transitions. Word has length 258 [2023-12-23 08:38:04,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:38:04,467 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 472 transitions. [2023-12-23 08:38:04,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 08:38:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 472 transitions. [2023-12-23 08:38:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-23 08:38:04,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:38:04,469 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:38:04,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-23 08:38:04,694 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 (8)] Ended with exit code 0 [2023-12-23 08:38:04,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 08:38:04,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:38:04,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:38:04,877 INFO L85 PathProgramCache]: Analyzing trace with hash 323011679, now seen corresponding path program 1 times [2023-12-23 08:38:04,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:38:04,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055201941] [2023-12-23 08:38:04,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:38:04,877 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 08:38:04,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:38:04,879 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:38:04,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-23 08:38:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:38:05,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 08:38:05,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:38:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 357 proven. 117 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2023-12-23 08:38:13,341 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:38:15,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:38:15,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055201941] [2023-12-23 08:38:15,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055201941] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:38:15,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1774653487] [2023-12-23 08:38:15,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:38:15,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 08:38:15,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 08:38:15,557 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 08:38:15,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-23 08:38:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:38:18,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 08:38:18,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:38:25,467 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 357 proven. 117 refuted. 0 times theorem prover too weak. 2970 trivial. 0 not checked. [2023-12-23 08:38:25,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:38:27,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1774653487] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:38:27,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 08:38:27,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-23 08:38:27,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080032605] [2023-12-23 08:38:27,211 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 08:38:27,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 08:38:27,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:38:27,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 08:38:27,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-23 08:38:27,213 INFO L87 Difference]: Start difference. First operand 308 states and 472 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 08:38:34,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:38,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:42,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:47,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:51,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:38:55,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:00,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:04,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:08,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:12,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:17,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:21,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:25,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:29,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:34,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:38,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:41,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 08:39:42,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:39:42,649 INFO L93 Difference]: Finished difference Result 524 states and 807 transitions. [2023-12-23 08:39:42,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 08:39:42,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 259 [2023-12-23 08:39:42,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:39:42,652 INFO L225 Difference]: With dead ends: 524 [2023-12-23 08:39:42,652 INFO L226 Difference]: Without dead ends: 314 [2023-12-23 08:39:42,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-23 08:39:42,654 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 44 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 12 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.0s IncrementalHoareTripleChecker+Time [2023-12-23 08:39:42,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 542 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 263 Invalid, 16 Unknown, 0 Unchecked, 75.0s Time] [2023-12-23 08:39:42,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-12-23 08:39:42,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2023-12-23 08:39:42,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 175 states have (on average 1.2514285714285713) internal successors, (219), 175 states have internal predecessors, (219), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2023-12-23 08:39:42,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 471 transitions. [2023-12-23 08:39:42,691 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 471 transitions. Word has length 259 [2023-12-23 08:39:42,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:39:42,691 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 471 transitions. [2023-12-23 08:39:42,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 08:39:42,692 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 471 transitions. [2023-12-23 08:39:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-23 08:39:42,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:39:42,696 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:42,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-12-23 08:39:42,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-23 08:39:43,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:39:43,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:39:43,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:39:43,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1024076257, now seen corresponding path program 1 times [2023-12-23 08:39:43,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:39:43,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962191529] [2023-12-23 08:39:43,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:39:43,112 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 08:39:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:39:43,115 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:39:43,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-23 08:39:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:39:44,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-23 08:39:44,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:40:27,351 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:40:36,304 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:40:45,232 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:40:54,173 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:41:03,143 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:41:12,086 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:41:20,604 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:41:29,546 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:41:38,478 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:41:47,403 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:41:56,344 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:42:05,251 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:42:14,183 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:42:23,062 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:42:31,968 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:42:40,925 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:42:49,843 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:42:58,750 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:43:07,676 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:43:11,924 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 16) c_~var_1_6~0)) (.cse3 ((_ zero_extend 16) c_~var_1_9~0))) (let ((.cse2 ((_ zero_extend 16) c_~var_1_5~0)) (.cse1 (bvslt .cse4 .cse3)) (.cse0 ((_ zero_extend 16) c_~var_1_4~0))) (and (= c_~var_1_1~0 ((_ extract 15 0) (bvadd (_ bv4294967168 32) .cse0))) (= c_~last_1_var_1_22~0 (_ bv64 32)) (= c_~last_1_var_1_20~0 (_ bv256 16)) (or .cse1 (not (bvsge .cse2 (bvadd (_ bv32796 32) (bvneg .cse3))))) (= c_~var_1_22~0 (_ bv64 32)) (= (_ bv1 8) c_~last_1_var_1_19~0) (= c_~var_1_8~0 (_ bv64 8)) (bvsle .cse2 (_ bv16383 32)) (or (not (bvsge .cse2 (bvadd (bvneg .cse4) (_ bv32796 32)))) (not .cse1)) (let ((.cse7 (bvadd (_ bv4294967232 32) ((_ zero_extend 16) c_~var_1_21~0)))) (let ((.cse6 (bvslt .cse7 (_ bv0 32))) (.cse5 (bvneg .cse7))) (or (and (= ((_ extract 15 0) (bvadd .cse0 .cse5)) c_~var_1_20~0) (not .cse6)) (and .cse6 (= c_~var_1_20~0 ((_ extract 15 0) (bvadd .cse0 (bvneg .cse5)))))))) (= c_~last_1_var_1_8~0 (_ bv64 8)) (= (_ bv1 8) c_~var_1_16~0) (bvsge .cse0 (_ bv49150 32)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_12~0) (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)) c_~var_1_3~0))))) is different from false [2023-12-23 08:43:16,183 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 16) c_~var_1_6~0)) (.cse3 ((_ zero_extend 16) c_~var_1_9~0))) (let ((.cse2 ((_ zero_extend 16) c_~var_1_5~0)) (.cse1 (bvslt .cse4 .cse3)) (.cse0 ((_ zero_extend 16) c_~var_1_4~0))) (and (= c_~var_1_1~0 ((_ extract 15 0) (bvadd (_ bv4294967168 32) .cse0))) (= c_~last_1_var_1_22~0 (_ bv64 32)) (= c_~last_1_var_1_20~0 (_ bv256 16)) (or .cse1 (not (bvsge .cse2 (bvadd (_ bv32796 32) (bvneg .cse3))))) (= c_~var_1_22~0 (_ bv64 32)) (= (_ bv1 8) c_~last_1_var_1_19~0) (= c_~var_1_8~0 (_ bv64 8)) (bvsle .cse2 (_ bv16383 32)) (or (not (bvsge .cse2 (bvadd (bvneg .cse4) (_ bv32796 32)))) (not .cse1)) (let ((.cse7 (bvadd (_ bv4294967232 32) ((_ zero_extend 16) c_~var_1_21~0)))) (let ((.cse6 (bvslt .cse7 (_ bv0 32))) (.cse5 (bvneg .cse7))) (or (and (= ((_ extract 15 0) (bvadd .cse0 .cse5)) c_~var_1_20~0) (not .cse6)) (and .cse6 (= c_~var_1_20~0 ((_ extract 15 0) (bvadd .cse0 (bvneg .cse5)))))))) (= c_~last_1_var_1_8~0 (_ bv64 8)) (= (_ bv1 8) c_~var_1_16~0) (bvsge .cse0 (_ bv49150 32)) (fp.geq ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_12~0) (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)) c_~var_1_3~0))))) is different from true [2023-12-23 08:43:25,090 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:43:33,991 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:43:42,895 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:43:51,792 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:44:00,709 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:44:09,644 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:44:18,200 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:44:27,144 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:44:36,106 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:44:45,068 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:44:54,022 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:45:02,947 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:45:11,890 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:45:20,814 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:45:29,805 WARN L293 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:45:38,752 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:45:47,690 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:45:53,447 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:46:02,327 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:46:11,263 WARN L293 SmtUtils]: Spent 8.92s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:46:20,155 WARN L293 SmtUtils]: Spent 8.89s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:46:29,039 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:46:37,942 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:46:46,840 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:46:59,355 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:47:08,306 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:47:17,206 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:47:26,140 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:47:35,086 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:47:43,993 WARN L293 SmtUtils]: Spent 8.91s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:47:52,954 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:48:02,073 WARN L293 SmtUtils]: Spent 9.12s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:48:11,010 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:48:19,989 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:48:26,857 WARN L293 SmtUtils]: Spent 6.87s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:48:35,842 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:48:44,825 WARN L293 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 08:48:53,774 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 08:48:55,541 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 08:48:55,541 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 (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 08:48:56,572 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 (12)] Forceful destruction successful, exit code 0 [2023-12-23 08:48:56,756 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 08:48:56,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 08:48:56,822 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 08:48:56,823 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 260 with TraceHistMax 42,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 08:48:56,826 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:48:56,829 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 08:48:56,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 08:48:56 BoogieIcfgContainer [2023-12-23 08:48:56,831 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 08:48:56,831 INFO L158 Benchmark]: Toolchain (without parser) took 874592.57ms. Allocated memory is still 334.5MB. Free memory was 283.0MB in the beginning and 174.4MB in the end (delta: 108.6MB). Peak memory consumption was 109.6MB. Max. memory is 8.0GB. [2023-12-23 08:48:56,831 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 197.1MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 08:48:56,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.69ms. Allocated memory is still 334.5MB. Free memory was 282.6MB in the beginning and 265.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 08:48:56,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.36ms. Allocated memory is still 334.5MB. Free memory was 265.5MB in the beginning and 262.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 08:48:56,837 INFO L158 Benchmark]: Boogie Preprocessor took 59.64ms. Allocated memory is still 334.5MB. Free memory was 262.7MB in the beginning and 258.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 08:48:56,838 INFO L158 Benchmark]: RCFGBuilder took 13746.66ms. Allocated memory is still 334.5MB. Free memory was 258.5MB in the beginning and 291.2MB in the end (delta: -32.7MB). Peak memory consumption was 30.6MB. Max. memory is 8.0GB. [2023-12-23 08:48:56,838 INFO L158 Benchmark]: TraceAbstraction took 860378.05ms. Allocated memory is still 334.5MB. Free memory was 290.7MB in the beginning and 174.4MB in the end (delta: 116.3MB). Peak memory consumption was 115.8MB. Max. memory is 8.0GB. [2023-12-23 08:48:56,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 197.1MB. Free memory is still 146.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 346.69ms. Allocated memory is still 334.5MB. Free memory was 282.6MB in the beginning and 265.5MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 54.36ms. Allocated memory is still 334.5MB. Free memory was 265.5MB in the beginning and 262.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.64ms. Allocated memory is still 334.5MB. Free memory was 262.7MB in the beginning and 258.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 13746.66ms. Allocated memory is still 334.5MB. Free memory was 258.5MB in the beginning and 291.2MB in the end (delta: -32.7MB). Peak memory consumption was 30.6MB. Max. memory is 8.0GB. * TraceAbstraction took 860378.05ms. Allocated memory is still 334.5MB. Free memory was 290.7MB in the beginning and 174.4MB in the end (delta: 116.3MB). Peak memory consumption was 115.8MB. 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 260 with TraceHistMax 42,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 860.3s, OverallIterations: 7, TraceHistogramMax: 42, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 236.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 mSolverCounterUnknown, 661 SdHoareTripleChecker+Valid, 233.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 657 mSDsluCounter, 2718 SdHoareTripleChecker+Invalid, 228.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1829 mSDsCounter, 368 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 609 IncrementalHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 368 mSolverCounterUnsat, 889 mSDtfsCounter, 609 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2721 GetRequests, 2679 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=308occurred in iteration=5, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 219 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 13.6s SatisfiabilityAnalysisTime, 53.7s InterpolantComputationTime, 2574 NumberOfCodeBlocks, 2574 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2564 ConstructedInterpolants, 0 QuantifiedInterpolants, 11698 SizeOfPredicates, 35 NumberOfNonLiveVariables, 4156 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 33738/34440 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