/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-pr-ci_file-23.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:08:42,181 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:08:42,253 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 12:08:42,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:08:42,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:08:42,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:08:42,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:08:42,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:08:42,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:08:42,284 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:08:42,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:08:42,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:08:42,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:08:42,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:08:42,286 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:08:42,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:08:42,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:08:42,287 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:08:42,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:08:42,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:08:42,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:08:42,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:08:42,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:08:42,288 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:08:42,288 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:08:42,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:08:42,288 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:08:42,288 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:08:42,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:08:42,288 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:08:42,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:08:42,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:08:42,289 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:08:42,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:08:42,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:08:42,290 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:08:42,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:08:42,291 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:08:42,291 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:08:42,291 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:08:42,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:08:42,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:08:42,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:08:42,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:08:42,513 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:08:42,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-23.i [2023-12-16 12:08:43,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:08:43,768 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:08:43,768 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-ci_file-23.i [2023-12-16 12:08:43,775 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b94bb07/51948ee58fc644a9b773d48c194b2868/FLAG6994203be [2023-12-16 12:08:43,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b94bb07/51948ee58fc644a9b773d48c194b2868 [2023-12-16 12:08:43,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:08:43,787 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:08:43,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:08:43,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:08:43,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:08:43,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:08:43" (1/1) ... [2023-12-16 12:08:43,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7bc97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:43, skipping insertion in model container [2023-12-16 12:08:43,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:08:43" (1/1) ... [2023-12-16 12:08:43,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:08:43,933 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-pr-ci_file-23.i[919,932] [2023-12-16 12:08:43,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:08:44,000 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:08:44,008 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-pr-ci_file-23.i[919,932] [2023-12-16 12:08:44,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:08:44,053 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:08:44,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44 WrapperNode [2023-12-16 12:08:44,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:08:44,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:08:44,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:08:44,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:08:44,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,107 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 186 [2023-12-16 12:08:44,107 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:08:44,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:08:44,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:08:44,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:08:44,116 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,119 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,135 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]. [2023-12-16 12:08:44,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,142 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:08:44,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:08:44,152 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:08:44,152 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:08:44,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (1/1) ... [2023-12-16 12:08:44,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:08:44,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:08:44,190 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) [2023-12-16 12:08:44,207 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 [2023-12-16 12:08:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:08:44,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:08:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:08:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:08:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:08:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:08:44,299 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:08:44,301 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:08:54,653 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:08:54,719 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:08:54,719 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:08:54,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:08:54 BoogieIcfgContainer [2023-12-16 12:08:54,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:08:54,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:08:54,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:08:54,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:08:54,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:08:43" (1/3) ... [2023-12-16 12:08:54,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b45751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:08:54, skipping insertion in model container [2023-12-16 12:08:54,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:08:44" (2/3) ... [2023-12-16 12:08:54,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b45751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:08:54, skipping insertion in model container [2023-12-16 12:08:54,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:08:54" (3/3) ... [2023-12-16 12:08:54,725 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-ci_file-23.i [2023-12-16 12:08:54,740 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:08:54,740 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:08:54,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:08:54,781 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;@717ca6b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:08:54,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:08:54,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 49 states have (on average 1.510204081632653) internal successors, (74), 50 states have internal predecessors, (74), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 12:08:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 12:08:54,797 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:08:54,798 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:08:54,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:08:54,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:08:54,804 INFO L85 PathProgramCache]: Analyzing trace with hash -436101132, now seen corresponding path program 1 times [2023-12-16 12:08:54,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:08:54,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203810432] [2023-12-16 12:08:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:54,817 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 [2023-12-16 12:08:54,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:08:54,819 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) [2023-12-16 12:08:54,824 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 [2023-12-16 12:08:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:55,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:08:55,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:08:55,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 560 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-12-16 12:08:55,736 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:08:55,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:08:55,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203810432] [2023-12-16 12:08:55,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203810432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:08:55,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:08:55,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:08:55,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026224969] [2023-12-16 12:08:55,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:08:55,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:08:55,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:08:55,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:08:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:08:55,766 INFO L87 Difference]: Start difference. First operand has 77 states, 49 states have (on average 1.510204081632653) internal successors, (74), 50 states have internal predecessors, (74), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:08:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:08:56,427 INFO L93 Difference]: Finished difference Result 151 states and 271 transitions. [2023-12-16 12:08:56,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:08:56,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 160 [2023-12-16 12:08:56,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:08:56,462 INFO L225 Difference]: With dead ends: 151 [2023-12-16 12:08:56,462 INFO L226 Difference]: Without dead ends: 75 [2023-12-16 12:08:56,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:08:56,469 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 12:08:56,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 12:08:56,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-16 12:08:56,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-16 12:08:56,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 48 states have (on average 1.4375) internal successors, (69), 48 states have internal predecessors, (69), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 12:08:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 119 transitions. [2023-12-16 12:08:56,503 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 119 transitions. Word has length 160 [2023-12-16 12:08:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:08:56,504 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 119 transitions. [2023-12-16 12:08:56,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-16 12:08:56,504 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 119 transitions. [2023-12-16 12:08:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 12:08:56,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:08:56,507 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:08:56,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 12:08:56,728 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 [2023-12-16 12:08:56,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:08:56,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:08:56,729 INFO L85 PathProgramCache]: Analyzing trace with hash -631340442, now seen corresponding path program 1 times [2023-12-16 12:08:56,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:08:56,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737342038] [2023-12-16 12:08:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:08:56,730 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 [2023-12-16 12:08:56,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:08:56,732 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) [2023-12-16 12:08:56,732 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 [2023-12-16 12:08:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:08:57,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:08:57,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:09:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 282 proven. 63 refuted. 0 times theorem prover too weak. 855 trivial. 0 not checked. [2023-12-16 12:09:00,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:09:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 9 proven. 63 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-16 12:09:02,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:09:02,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737342038] [2023-12-16 12:09:02,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737342038] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:09:02,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:09:02,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 12:09:02,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239864558] [2023-12-16 12:09:02,314 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:09:02,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 12:09:02,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:09:02,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 12:09:02,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:09:02,317 INFO L87 Difference]: Start difference. First operand 75 states and 119 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-16 12:09:05,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:09:05,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:09:05,964 INFO L93 Difference]: Finished difference Result 155 states and 240 transitions. [2023-12-16 12:09:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 12:09:05,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 160 [2023-12-16 12:09:05,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:09:05,996 INFO L225 Difference]: With dead ends: 155 [2023-12-16 12:09:05,996 INFO L226 Difference]: Without dead ends: 81 [2023-12-16 12:09:05,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 312 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-16 12:09:05,998 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 200 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 12:09:05,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 173 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 12:09:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-16 12:09:06,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 77. [2023-12-16 12:09:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 49 states have internal predecessors, (64), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-16 12:09:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 114 transitions. [2023-12-16 12:09:06,012 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 114 transitions. Word has length 160 [2023-12-16 12:09:06,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:09:06,013 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 114 transitions. [2023-12-16 12:09:06,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2023-12-16 12:09:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 114 transitions. [2023-12-16 12:09:06,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 12:09:06,015 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:09:06,015 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 12:09:06,039 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 [2023-12-16 12:09:06,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:09:06,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:09:06,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:09:06,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1218146456, now seen corresponding path program 1 times [2023-12-16 12:09:06,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:09:06,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989628383] [2023-12-16 12:09:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:09:06,218 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 [2023-12-16 12:09:06,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:09:06,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 12:09:06,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 12:09:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:09:07,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-16 12:09:07,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:10:00,693 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:10:00,722 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 [2023-12-16 12:10:00,885 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:10:00,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 12:10:01,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 12:10:01,087 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 161 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 16 known predicates. [2023-12-16 12:10:01,091 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 12:10:01,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:10:01,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:10:01 BoogieIcfgContainer [2023-12-16 12:10:01,094 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:10:01,095 INFO L158 Benchmark]: Toolchain (without parser) took 77307.36ms. Allocated memory is still 281.0MB. Free memory was 231.7MB in the beginning and 159.4MB in the end (delta: 72.2MB). Peak memory consumption was 73.2MB. Max. memory is 8.0GB. [2023-12-16 12:10:01,095 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory was 147.8MB in the beginning and 147.6MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:10:01,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.98ms. Allocated memory is still 281.0MB. Free memory was 231.4MB in the beginning and 215.6MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 12:10:01,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.66ms. Allocated memory is still 281.0MB. Free memory was 215.6MB in the beginning and 212.8MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:10:01,096 INFO L158 Benchmark]: Boogie Preprocessor took 43.19ms. Allocated memory is still 281.0MB. Free memory was 212.8MB in the beginning and 209.4MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:10:01,096 INFO L158 Benchmark]: RCFGBuilder took 10568.27ms. Allocated memory is still 281.0MB. Free memory was 209.4MB in the beginning and 249.0MB in the end (delta: -39.7MB). Peak memory consumption was 31.1MB. Max. memory is 8.0GB. [2023-12-16 12:10:01,096 INFO L158 Benchmark]: TraceAbstraction took 66372.94ms. Allocated memory is still 281.0MB. Free memory was 248.0MB in the beginning and 159.4MB in the end (delta: 88.6MB). Peak memory consumption was 88.2MB. Max. memory is 8.0GB. [2023-12-16 12:10:01,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory was 147.8MB in the beginning and 147.6MB in the end (delta: 158.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 265.98ms. Allocated memory is still 281.0MB. Free memory was 231.4MB in the beginning and 215.6MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.66ms. Allocated memory is still 281.0MB. Free memory was 215.6MB in the beginning and 212.8MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.19ms. Allocated memory is still 281.0MB. Free memory was 212.8MB in the beginning and 209.4MB in the end (delta: 3.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 10568.27ms. Allocated memory is still 281.0MB. Free memory was 209.4MB in the beginning and 249.0MB in the end (delta: -39.7MB). Peak memory consumption was 31.1MB. Max. memory is 8.0GB. * TraceAbstraction took 66372.94ms. Allocated memory is still 281.0MB. Free memory was 248.0MB in the beginning and 159.4MB in the end (delta: 88.6MB). Peak memory consumption was 88.2MB. 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 161 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 16 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.3s, OverallIterations: 3, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 289 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 191 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 485 GetRequests, 471 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 477 ConstructedInterpolants, 0 QuantifiedInterpolants, 1010 SizeOfPredicates, 3 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 3474/3600 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