/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_operatoramount_amount100_file-50.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-24 05:19:40,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-24 05:19:40,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-24 05:19:40,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-24 05:19:40,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-24 05:19:40,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-24 05:19:40,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-24 05:19:40,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-24 05:19:40,774 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-24 05:19:40,777 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-24 05:19:40,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-24 05:19:40,777 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-24 05:19:40,778 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-24 05:19:40,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-24 05:19:40,779 INFO L153 SettingsManager]: * Use SBE=true [2023-12-24 05:19:40,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-24 05:19:40,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-24 05:19:40,780 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-24 05:19:40,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-24 05:19:40,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-24 05:19:40,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-24 05:19:40,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-24 05:19:40,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-24 05:19:40,781 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-24 05:19:40,781 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-24 05:19:40,781 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-24 05:19:40,781 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-24 05:19:40,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-24 05:19:40,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-24 05:19:40,782 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-24 05:19:40,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-24 05:19:40,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-24 05:19:40,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-24 05:19:40,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-24 05:19:40,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 05:19:40,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-24 05:19:40,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-24 05:19:40,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-24 05:19:40,784 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-24 05:19:40,784 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-24 05:19:40,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-24 05:19:40,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-24 05:19:40,784 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-24 05:19:40,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-24 05:19:40,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-24 05:19:40,785 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-24 05:19:40,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-24 05:19:41,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-24 05:19:41,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-24 05:19:41,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-24 05:19:41,055 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-24 05:19:41,056 INFO L274 PluginConnector]: CDTParser initialized [2023-12-24 05:19:41,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-50.i [2023-12-24 05:19:42,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-24 05:19:42,391 INFO L384 CDTParser]: Found 1 translation units. [2023-12-24 05:19:42,392 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-50.i [2023-12-24 05:19:42,398 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30f348c7/643e51e9fe9b4ce4b5ac6968148ad8a6/FLAG9e8455955 [2023-12-24 05:19:42,407 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a30f348c7/643e51e9fe9b4ce4b5ac6968148ad8a6 [2023-12-24 05:19:42,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-24 05:19:42,409 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-24 05:19:42,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-24 05:19:42,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-24 05:19:42,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-24 05:19:42,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735a37e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42, skipping insertion in model container [2023-12-24 05:19:42,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-24 05:19:42,577 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_operatoramount_amount100_file-50.i[916,929] [2023-12-24 05:19:42,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 05:19:42,636 INFO L202 MainTranslator]: Completed pre-run [2023-12-24 05:19:42,645 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_operatoramount_amount100_file-50.i[916,929] [2023-12-24 05:19:42,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-24 05:19:42,687 INFO L206 MainTranslator]: Completed translation [2023-12-24 05:19:42,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42 WrapperNode [2023-12-24 05:19:42,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-24 05:19:42,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-24 05:19:42,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-24 05:19:42,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-24 05:19:42,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,731 INFO L138 Inliner]: procedures = 27, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 228 [2023-12-24 05:19:42,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-24 05:19:42,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-24 05:19:42,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-24 05:19:42,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-24 05:19:42,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,749 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,760 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]. [2023-12-24 05:19:42,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,769 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-24 05:19:42,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-24 05:19:42,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-24 05:19:42,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-24 05:19:42,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (1/1) ... [2023-12-24 05:19:42,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-24 05:19:42,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-24 05:19:42,811 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) [2023-12-24 05:19:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-24 05:19:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-24 05:19:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-24 05:19:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-24 05:19:42,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-24 05:19:42,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-24 05:19:42,827 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 [2023-12-24 05:19:42,912 INFO L241 CfgBuilder]: Building ICFG [2023-12-24 05:19:42,913 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-24 05:19:59,822 INFO L282 CfgBuilder]: Performing block encoding [2023-12-24 05:19:59,855 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-24 05:19:59,855 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-24 05:19:59,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 05:19:59 BoogieIcfgContainer [2023-12-24 05:19:59,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-24 05:19:59,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-24 05:19:59,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-24 05:19:59,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-24 05:19:59,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.12 05:19:42" (1/3) ... [2023-12-24 05:19:59,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454c0404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 05:19:59, skipping insertion in model container [2023-12-24 05:19:59,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.12 05:19:42" (2/3) ... [2023-12-24 05:19:59,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454c0404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 05:19:59, skipping insertion in model container [2023-12-24 05:19:59,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 05:19:59" (3/3) ... [2023-12-24 05:19:59,862 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-50.i [2023-12-24 05:19:59,873 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-24 05:19:59,873 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-24 05:19:59,909 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-24 05:19:59,913 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;@495a18ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-24 05:19:59,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-24 05:19:59,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 58 states have (on average 1.396551724137931) internal successors, (81), 59 states have internal predecessors, (81), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-24 05:19:59,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-24 05:19:59,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 05:19:59,928 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 05:19:59,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 05:19:59,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 05:19:59,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1682669356, now seen corresponding path program 1 times [2023-12-24 05:19:59,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 05:19:59,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131200079] [2023-12-24 05:19:59,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:19:59,943 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 [2023-12-24 05:19:59,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 05:19:59,945 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) [2023-12-24 05:19:59,966 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 [2023-12-24 05:20:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:20:00,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-24 05:20:00,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:20:01,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 1172 proven. 0 refuted. 0 times theorem prover too weak. 1492 trivial. 0 not checked. [2023-12-24 05:20:01,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 05:20:01,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 05:20:01,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131200079] [2023-12-24 05:20:01,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131200079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 05:20:01,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-24 05:20:01,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-24 05:20:01,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411290281] [2023-12-24 05:20:01,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 05:20:01,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-24 05:20:01,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 05:20:01,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-24 05:20:01,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 05:20:01,077 INFO L87 Difference]: Start difference. First operand has 98 states, 58 states have (on average 1.396551724137931) internal successors, (81), 59 states have internal predecessors, (81), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-24 05:20:05,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:20:05,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 05:20:05,473 INFO L93 Difference]: Finished difference Result 193 states and 345 transitions. [2023-12-24 05:20:05,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-24 05:20:05,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 232 [2023-12-24 05:20:05,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 05:20:05,617 INFO L225 Difference]: With dead ends: 193 [2023-12-24 05:20:05,617 INFO L226 Difference]: Without dead ends: 96 [2023-12-24 05:20:05,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-24 05:20:05,622 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-24 05:20:05,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-12-24 05:20:05,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-24 05:20:05,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-24 05:20:05,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 57 states have internal predecessors, (76), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-24 05:20:05,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 150 transitions. [2023-12-24 05:20:05,657 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 150 transitions. Word has length 232 [2023-12-24 05:20:05,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 05:20:05,657 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 150 transitions. [2023-12-24 05:20:05,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-24 05:20:05,658 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 150 transitions. [2023-12-24 05:20:05,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-24 05:20:05,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 05:20:05,661 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 05:20:05,693 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 [2023-12-24 05:20:05,868 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 [2023-12-24 05:20:05,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 05:20:05,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 05:20:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1102683426, now seen corresponding path program 1 times [2023-12-24 05:20:05,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 05:20:05,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798505576] [2023-12-24 05:20:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:20:05,871 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 [2023-12-24 05:20:05,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 05:20:05,872 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) [2023-12-24 05:20:05,877 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 [2023-12-24 05:20:06,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:20:06,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 05:20:06,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:20:09,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 1293 proven. 72 refuted. 0 times theorem prover too weak. 1299 trivial. 0 not checked. [2023-12-24 05:20:09,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 05:20:10,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 05:20:10,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798505576] [2023-12-24 05:20:10,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798505576] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 05:20:10,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [382294777] [2023-12-24 05:20:10,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:20:10,070 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 05:20:10,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 05:20:10,125 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) [2023-12-24 05:20:10,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-24 05:20:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:20:10,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-24 05:20:10,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:20:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2023-12-24 05:20:13,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-24 05:20:13,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [382294777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-24 05:20:13,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-24 05:20:13,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2023-12-24 05:20:13,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521386375] [2023-12-24 05:20:13,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-24 05:20:13,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-24 05:20:13,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 05:20:13,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-24 05:20:13,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-12-24 05:20:13,713 INFO L87 Difference]: Start difference. First operand 96 states and 150 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2023-12-24 05:20:18,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:20:18,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 05:20:18,380 INFO L93 Difference]: Finished difference Result 191 states and 299 transitions. [2023-12-24 05:20:18,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-24 05:20:18,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 232 [2023-12-24 05:20:18,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 05:20:18,520 INFO L225 Difference]: With dead ends: 191 [2023-12-24 05:20:18,520 INFO L226 Difference]: Without dead ends: 96 [2023-12-24 05:20:18,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-12-24 05:20:18,521 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 115 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 78 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-24 05:20:18,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 138 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-12-24 05:20:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-24 05:20:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-24 05:20:18,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-12-24 05:20:18,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 146 transitions. [2023-12-24 05:20:18,538 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 146 transitions. Word has length 232 [2023-12-24 05:20:18,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 05:20:18,541 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 146 transitions. [2023-12-24 05:20:18,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2023-12-24 05:20:18,542 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 146 transitions. [2023-12-24 05:20:18,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-24 05:20:18,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 05:20:18,547 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 05:20:18,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-24 05:20:18,778 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 [2023-12-24 05:20:18,964 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 [2023-12-24 05:20:18,964 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 05:20:18,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 05:20:18,965 INFO L85 PathProgramCache]: Analyzing trace with hash -883769126, now seen corresponding path program 1 times [2023-12-24 05:20:18,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 05:20:18,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [473961212] [2023-12-24 05:20:18,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:20:18,966 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 [2023-12-24 05:20:18,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 05:20:18,969 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) [2023-12-24 05:20:18,970 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 [2023-12-24 05:20:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:20:19,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-24 05:20:19,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:20:35,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 295 proven. 384 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked. [2023-12-24 05:20:35,313 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 05:20:40,399 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 05:20:40,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [473961212] [2023-12-24 05:20:40,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [473961212] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 05:20:40,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1357989771] [2023-12-24 05:20:40,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:20:40,400 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 05:20:40,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 05:20:40,401 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 05:20:40,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-24 05:20:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:20:42,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-24 05:20:42,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:20:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 295 proven. 384 refuted. 0 times theorem prover too weak. 1985 trivial. 0 not checked. [2023-12-24 05:20:55,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 05:20:58,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1357989771] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 05:20:58,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 05:20:58,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2023-12-24 05:20:58,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520855053] [2023-12-24 05:20:58,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 05:20:58,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-24 05:20:58,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 05:20:58,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-24 05:20:58,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-12-24 05:20:58,463 INFO L87 Difference]: Start difference. First operand 96 states and 146 transitions. Second operand has 16 states, 16 states have (on average 4.0625) internal successors, (65), 13 states have internal predecessors, (65), 5 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) [2023-12-24 05:21:08,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:21:12,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:21:16,981 WARN L539 Checker$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 [] [2023-12-24 05:21:20,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:21:25,003 WARN L539 Checker$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 [] [2023-12-24 05:21:29,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:21:33,023 WARN L539 Checker$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 [] [2023-12-24 05:21:37,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:21:41,043 WARN L539 Checker$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 [] [2023-12-24 05:21:45,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:21:49,049 WARN L539 Checker$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 [] [2023-12-24 05:21:53,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:21:57,074 WARN L539 Checker$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 [] [2023-12-24 05:22:01,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:22:05,089 WARN L539 Checker$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 [] [2023-12-24 05:22:09,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:22:13,105 WARN L539 Checker$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 [] [2023-12-24 05:22:17,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:22:21,119 WARN L539 Checker$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 [] [2023-12-24 05:22:25,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:22:29,128 WARN L539 Checker$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 [] [2023-12-24 05:22:33,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:22:37,139 WARN L539 Checker$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 [] [2023-12-24 05:22:41,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:22:45,157 WARN L539 Checker$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 [] [2023-12-24 05:22:45,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 05:22:45,400 INFO L93 Difference]: Finished difference Result 304 states and 450 transitions. [2023-12-24 05:22:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-24 05:22:45,400 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 13 states have internal predecessors, (65), 5 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) Word has length 232 [2023-12-24 05:22:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 05:22:45,402 INFO L225 Difference]: With dead ends: 304 [2023-12-24 05:22:45,403 INFO L226 Difference]: Without dead ends: 209 [2023-12-24 05:22:45,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2023-12-24 05:22:45,404 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 158 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 13 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 104.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.2s IncrementalHoareTripleChecker+Time [2023-12-24 05:22:45,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 553 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 468 Invalid, 25 Unknown, 0 Unchecked, 105.2s Time] [2023-12-24 05:22:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-24 05:22:45,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2023-12-24 05:22:45,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 124 states have internal predecessors, (153), 74 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-24 05:22:45,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 301 transitions. [2023-12-24 05:22:45,447 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 301 transitions. Word has length 232 [2023-12-24 05:22:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 05:22:45,448 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 301 transitions. [2023-12-24 05:22:45,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 13 states have internal predecessors, (65), 5 states have call successors, (37), 5 states have call predecessors, (37), 6 states have return successors, (37), 5 states have call predecessors, (37), 5 states have call successors, (37) [2023-12-24 05:22:45,449 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 301 transitions. [2023-12-24 05:22:45,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-24 05:22:45,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 05:22:45,451 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 05:22:45,482 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 (5)] Forceful destruction successful, exit code 0 [2023-12-24 05:22:45,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-12-24 05:22:45,876 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 05:22:45,877 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 05:22:45,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 05:22:45,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1904837480, now seen corresponding path program 1 times [2023-12-24 05:22:45,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 05:22:45,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864631519] [2023-12-24 05:22:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:22:45,878 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 [2023-12-24 05:22:45,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 05:22:45,879 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 05:22:45,881 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 (7)] Waiting until timeout for monitored process [2023-12-24 05:22:46,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:22:46,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-24 05:22:46,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:22:56,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 215 proven. 204 refuted. 0 times theorem prover too weak. 2245 trivial. 0 not checked. [2023-12-24 05:22:56,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 05:22:58,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 05:22:58,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864631519] [2023-12-24 05:22:58,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864631519] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 05:22:58,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [333670304] [2023-12-24 05:22:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:22:58,768 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 05:22:58,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 05:22:58,769 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 05:22:58,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-24 05:23:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:23:00,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 05:23:00,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:23:06,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 178 proven. 105 refuted. 0 times theorem prover too weak. 2381 trivial. 0 not checked. [2023-12-24 05:23:06,740 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 05:23:08,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [333670304] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 05:23:08,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-24 05:23:08,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2023-12-24 05:23:08,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499994543] [2023-12-24 05:23:08,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-24 05:23:08,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-24 05:23:08,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-24 05:23:08,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-24 05:23:08,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2023-12-24 05:23:08,129 INFO L87 Difference]: Start difference. First operand 205 states and 301 transitions. Second operand has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 3 states have call successors, (71), 3 states have call predecessors, (71), 5 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2023-12-24 05:23:16,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:23:21,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:23:25,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:23:29,746 WARN L539 Checker$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 [] [2023-12-24 05:23:33,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:23:37,758 WARN L539 Checker$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 [] [2023-12-24 05:23:41,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:23:45,764 WARN L539 Checker$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 [] [2023-12-24 05:23:49,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:23:53,785 WARN L539 Checker$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 [] [2023-12-24 05:23:57,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:24:01,794 WARN L539 Checker$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 [] [2023-12-24 05:24:05,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:24:09,814 WARN L539 Checker$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 [] [2023-12-24 05:24:13,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:24:17,829 WARN L539 Checker$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 [] [2023-12-24 05:24:21,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:24:25,838 WARN L539 Checker$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 [] [2023-12-24 05:24:29,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-24 05:24:33,861 WARN L539 Checker$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 [] [2023-12-24 05:24:39,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-24 05:24:39,370 INFO L93 Difference]: Finished difference Result 505 states and 732 transitions. [2023-12-24 05:24:39,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-24 05:24:39,371 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 3 states have call successors, (71), 3 states have call predecessors, (71), 5 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 232 [2023-12-24 05:24:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-24 05:24:39,374 INFO L225 Difference]: With dead ends: 505 [2023-12-24 05:24:39,374 INFO L226 Difference]: Without dead ends: 301 [2023-12-24 05:24:39,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 883 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2023-12-24 05:24:39,376 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 126 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 79 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.2s IncrementalHoareTripleChecker+Time [2023-12-24 05:24:39,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 1147 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1241 Invalid, 19 Unknown, 0 Unchecked, 89.2s Time] [2023-12-24 05:24:39,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-24 05:24:39,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 205. [2023-12-24 05:24:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 124 states have (on average 1.2258064516129032) internal successors, (152), 124 states have internal predecessors, (152), 74 states have call successors, (74), 6 states have call predecessors, (74), 6 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-24 05:24:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 300 transitions. [2023-12-24 05:24:39,421 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 300 transitions. Word has length 232 [2023-12-24 05:24:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-24 05:24:39,422 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 300 transitions. [2023-12-24 05:24:39,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.461538461538462) internal successors, (97), 12 states have internal predecessors, (97), 3 states have call successors, (71), 3 states have call predecessors, (71), 5 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2023-12-24 05:24:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 300 transitions. [2023-12-24 05:24:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-24 05:24:39,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-24 05:24:39,424 INFO L195 NwaCegarLoop]: trace histogram [37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-24 05:24:39,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-24 05:24:39,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-24 05:24:39,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-24 05:24:39,849 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-24 05:24:39,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-24 05:24:39,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1997102806, now seen corresponding path program 1 times [2023-12-24 05:24:39,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-24 05:24:39,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014219736] [2023-12-24 05:24:39,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:24:39,850 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 [2023-12-24 05:24:39,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-24 05:24:39,851 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-24 05:24:39,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-24 05:24:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:24:40,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-24 05:24:40,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:24:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 473 proven. 192 refuted. 0 times theorem prover too weak. 1999 trivial. 0 not checked. [2023-12-24 05:24:46,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-24 05:24:47,370 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-24 05:24:47,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014219736] [2023-12-24 05:24:47,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014219736] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-24 05:24:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1318035451] [2023-12-24 05:24:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-24 05:24:47,371 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-24 05:24:47,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-24 05:24:47,372 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-24 05:24:47,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-24 05:24:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-24 05:24:49,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-24 05:24:49,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-24 05:26:41,560 WARN L293 SmtUtils]: Spent 20.36s on a formula simplification that was a NOOP. DAG size: 74 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 05:28:40,283 WARN L293 SmtUtils]: Spent 45.60s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 05:29:23,329 WARN L293 SmtUtils]: Spent 6.03s 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) [2023-12-24 05:29:54,344 WARN L293 SmtUtils]: Spent 5.84s 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) [2023-12-24 05:31:47,297 WARN L293 SmtUtils]: Spent 1.32m on a formula simplification that was a NOOP. DAG size: 80 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-24 05:31:55,443 WARN L293 SmtUtils]: Spent 8.14s 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) [2023-12-24 05:32:14,399 WARN L293 SmtUtils]: Spent 5.02s 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) [2023-12-24 05:32:26,769 WARN L293 SmtUtils]: Spent 6.66s 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) [2023-12-24 05:33:06,017 WARN L293 SmtUtils]: Spent 5.61s 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) [2023-12-24 05:33:14,691 WARN L293 SmtUtils]: Spent 5.86s 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... [2023-12-24 05:34:25,567 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 05:34:25,568 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-24 05:34:25,574 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 [2023-12-24 05:34:26,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-24 05:34:26,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-24 05:34:26,780 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 [2023-12-24 05:34:26,823 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-24 05:34:26,824 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 233 with TraceHistMax 37,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. [2023-12-24 05:34:26,824 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 [2023-12-24 05:34:26,827 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-24 05:34:26,828 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-24 05:34:26,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 05:34:26 BoogieIcfgContainer [2023-12-24 05:34:26,835 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-24 05:34:26,835 INFO L158 Benchmark]: Toolchain (without parser) took 884425.99ms. Allocated memory was 199.2MB in the beginning and 298.8MB in the end (delta: 99.6MB). Free memory was 144.4MB in the beginning and 236.1MB in the end (delta: -91.7MB). Peak memory consumption was 9.0MB. Max. memory is 8.0GB. [2023-12-24 05:34:26,836 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 199.2MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-24 05:34:26,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.41ms. Allocated memory is still 199.2MB. Free memory was 144.4MB in the beginning and 126.9MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-24 05:34:26,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.49ms. Allocated memory is still 199.2MB. Free memory was 126.9MB in the beginning and 124.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-24 05:34:26,836 INFO L158 Benchmark]: Boogie Preprocessor took 45.33ms. Allocated memory is still 199.2MB. Free memory was 124.1MB in the beginning and 119.5MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-24 05:34:26,836 INFO L158 Benchmark]: RCFGBuilder took 17078.10ms. Allocated memory was 199.2MB in the beginning and 298.8MB in the end (delta: 99.6MB). Free memory was 119.5MB in the beginning and 243.6MB in the end (delta: -124.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-24 05:34:26,837 INFO L158 Benchmark]: TraceAbstraction took 866977.65ms. Allocated memory is still 298.8MB. Free memory was 243.1MB in the beginning and 236.1MB in the end (delta: 7.0MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2023-12-24 05:34:26,837 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 199.2MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 277.41ms. Allocated memory is still 199.2MB. Free memory was 144.4MB in the beginning and 126.9MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.49ms. Allocated memory is still 199.2MB. Free memory was 126.9MB in the beginning and 124.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.33ms. Allocated memory is still 199.2MB. Free memory was 124.1MB in the beginning and 119.5MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 17078.10ms. Allocated memory was 199.2MB in the beginning and 298.8MB in the end (delta: 99.6MB). Free memory was 119.5MB in the beginning and 243.6MB in the end (delta: -124.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 866977.65ms. Allocated memory is still 298.8MB. Free memory was 243.1MB in the beginning and 236.1MB in the end (delta: 7.0MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 233 with TraceHistMax 37,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866.9s, OverallIterations: 5, TraceHistogramMax: 37, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 207.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 mSolverCounterUnknown, 402 SdHoareTripleChecker+Valid, 203.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 1985 SdHoareTripleChecker+Invalid, 202.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1448 mSDsCounter, 170 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1718 IncrementalHoareTripleChecker+Invalid, 1934 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 170 mSolverCounterUnsat, 537 mSDtfsCounter, 1718 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2159 GetRequests, 2090 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 10.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=3, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 100 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 7.1s SatisfiabilityAnalysisTime, 62.9s InterpolantComputationTime, 1624 NumberOfCodeBlocks, 1624 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1617 ConstructedInterpolants, 0 QuantifiedInterpolants, 13976 SizeOfPredicates, 36 NumberOfNonLiveVariables, 2610 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 17499/18648 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