/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_fillercodesize_ps-cn-25_file-26.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:12:49,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:12:49,116 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 11:12:49,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:12:49,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:12:49,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:12:49,142 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:12:49,142 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:12:49,143 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:12:49,145 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:12:49,145 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:12:49,146 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:12:49,146 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:12:49,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:12:49,147 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:12:49,147 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:12:49,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:12:49,148 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:12:49,148 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:12:49,148 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:12:49,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:12:49,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:12:49,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:12:49,149 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:12:49,149 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:12:49,149 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:12:49,149 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:12:49,149 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:12:49,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:12:49,150 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:12:49,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:12:49,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:12:49,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:12:49,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:12:49,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:12:49,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:12:49,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:12:49,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:12:49,151 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:12:49,151 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:12:49,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:12:49,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:12:49,152 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:12:49,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:12:49,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:12:49,153 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:12:49,153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:12:49,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:12:49,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:12:49,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:12:49,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:12:49,346 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:12:49,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-26.i [2023-12-16 11:12:50,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:12:50,417 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:12:50,417 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-26.i [2023-12-16 11:12:50,423 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b817102/7b8e1b595a804cf09d28ac92cdf1653f/FLAG395732ed2 [2023-12-16 11:12:50,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9b817102/7b8e1b595a804cf09d28ac92cdf1653f [2023-12-16 11:12:50,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:12:50,434 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:12:50,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:12:50,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:12:50,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:12:50,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719ffa95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50, skipping insertion in model container [2023-12-16 11:12:50,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,456 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:12:50,544 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_fillercodesize_ps-cn-25_file-26.i[915,928] [2023-12-16 11:12:50,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:12:50,597 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:12:50,604 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_fillercodesize_ps-cn-25_file-26.i[915,928] [2023-12-16 11:12:50,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:12:50,650 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:12:50,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50 WrapperNode [2023-12-16 11:12:50,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:12:50,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:12:50,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:12:50,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:12:50,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,702 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195 [2023-12-16 11:12:50,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:12:50,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:12:50,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:12:50,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:12:50,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,725 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 11:12:50,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,747 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:12:50,751 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:12:50,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:12:50,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:12:50,752 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (1/1) ... [2023-12-16 11:12:50,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:12:50,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:12:50,786 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 11:12:50,796 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 11:12:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:12:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:12:50,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:12:50,811 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:12:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:12:50,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:12:50,899 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:12:50,901 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:13:04,239 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:13:04,273 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:13:04,273 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:13:04,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:13:04 BoogieIcfgContainer [2023-12-16 11:13:04,273 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:13:04,275 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:13:04,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:13:04,277 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:13:04,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:12:50" (1/3) ... [2023-12-16 11:13:04,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecc1f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:13:04, skipping insertion in model container [2023-12-16 11:13:04,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:12:50" (2/3) ... [2023-12-16 11:13:04,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecc1f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:13:04, skipping insertion in model container [2023-12-16 11:13:04,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:13:04" (3/3) ... [2023-12-16 11:13:04,279 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-26.i [2023-12-16 11:13:04,290 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:13:04,290 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:13:04,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:13:04,330 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;@28015306, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:13:04,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:13:04,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 47 states have (on average 1.425531914893617) internal successors, (67), 48 states have internal predecessors, (67), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 11:13:04,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-16 11:13:04,344 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:13:04,344 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:04,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:13:04,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:13:04,348 INFO L85 PathProgramCache]: Analyzing trace with hash -268586832, now seen corresponding path program 1 times [2023-12-16 11:13:04,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:13:04,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193983770] [2023-12-16 11:13:04,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:13:04,357 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 11:13:04,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:13:04,360 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 11:13:04,360 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 11:13:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:13:05,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:13:05,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:13:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 896 proven. 0 refuted. 0 times theorem prover too weak. 964 trivial. 0 not checked. [2023-12-16 11:13:05,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:13:05,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:13:05,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193983770] [2023-12-16 11:13:05,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193983770] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:13:05,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:13:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:13:05,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611793006] [2023-12-16 11:13:05,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:13:05,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:13:05,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:13:05,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:13:05,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:13:05,334 INFO L87 Difference]: Start difference. First operand has 81 states, 47 states have (on average 1.425531914893617) internal successors, (67), 48 states have internal predecessors, (67), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-16 11:13:10,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:10,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:13:10,026 INFO L93 Difference]: Finished difference Result 159 states and 287 transitions. [2023-12-16 11:13:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:13:10,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 191 [2023-12-16 11:13:10,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:13:10,276 INFO L225 Difference]: With dead ends: 159 [2023-12-16 11:13:10,276 INFO L226 Difference]: Without dead ends: 79 [2023-12-16 11:13:10,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 190 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 11:13:10,281 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:13:10,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 11:13:10,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-16 11:13:10,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-12-16 11:13:10,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 11:13:10,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 124 transitions. [2023-12-16 11:13:10,312 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 124 transitions. Word has length 191 [2023-12-16 11:13:10,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:13:10,312 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 124 transitions. [2023-12-16 11:13:10,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-16 11:13:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 124 transitions. [2023-12-16 11:13:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-12-16 11:13:10,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:13:10,315 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:10,335 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 11:13:10,520 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 11:13:10,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:13:10,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:13:10,521 INFO L85 PathProgramCache]: Analyzing trace with hash -934774286, now seen corresponding path program 1 times [2023-12-16 11:13:10,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:13:10,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928829827] [2023-12-16 11:13:10,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:13:10,524 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 11:13:10,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:13:10,525 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 11:13:10,525 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 11:13:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:13:11,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:13:11,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:13:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 454 proven. 78 refuted. 0 times theorem prover too weak. 1328 trivial. 0 not checked. [2023-12-16 11:13:14,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:13:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-12-16 11:13:14,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:13:14,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928829827] [2023-12-16 11:13:14,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928829827] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 11:13:14,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:13:14,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-16 11:13:14,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905571804] [2023-12-16 11:13:14,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:13:14,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:13:14,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:13:14,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:13:14,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 11:13:14,514 INFO L87 Difference]: Start difference. First operand 79 states and 124 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-16 11:13:19,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:23,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:27,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:31,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:35,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:13:36,232 INFO L93 Difference]: Finished difference Result 182 states and 282 transitions. [2023-12-16 11:13:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 11:13:36,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 191 [2023-12-16 11:13:36,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:13:36,234 INFO L225 Difference]: With dead ends: 182 [2023-12-16 11:13:36,234 INFO L226 Difference]: Without dead ends: 104 [2023-12-16 11:13:36,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-16 11:13:36,236 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 50 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2023-12-16 11:13:36,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 393 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 21.6s Time] [2023-12-16 11:13:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-16 11:13:36,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2023-12-16 11:13:36,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.375) internal successors, (88), 65 states have internal predecessors, (88), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-16 11:13:36,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 156 transitions. [2023-12-16 11:13:36,250 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 156 transitions. Word has length 191 [2023-12-16 11:13:36,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:13:36,250 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 156 transitions. [2023-12-16 11:13:36,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-16 11:13:36,251 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2023-12-16 11:13:36,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-16 11:13:36,254 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:13:36,255 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:36,277 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 11:13:36,460 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 11:13:36,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:13:36,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:13:36,461 INFO L85 PathProgramCache]: Analyzing trace with hash 634869950, now seen corresponding path program 1 times [2023-12-16 11:13:36,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:13:36,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475716558] [2023-12-16 11:13:36,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:13:36,462 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 11:13:36,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:13:36,463 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 11:13:36,464 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 11:13:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:13:37,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 11:13:37,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:13:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2023-12-16 11:13:45,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:13:45,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:13:45,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475716558] [2023-12-16 11:13:45,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475716558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:13:45,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:13:45,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:13:45,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760213412] [2023-12-16 11:13:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:13:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:13:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:13:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:13:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 11:13:45,322 INFO L87 Difference]: Start difference. First operand 101 states and 156 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-12-16 11:13:49,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:54,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:13:59,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:14:04,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:14:08,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-16 11:14:09,859 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 11:14:09,877 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 11:14:10,899 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 11:14:11,059 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 [2023-12-16 11:14:11,105 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 [2023-12-16 11:14:11,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 11:14:11,107 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 82 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 63 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2023-12-16 11:14:11,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 325 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 29 Invalid, 5 Unknown, 0 Unchecked, 23.9s Time] [2023-12-16 11:14:11,109 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:14:11,109 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 11:14:11,112 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 11:14:11,114 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:14:11,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:14:11 BoogieIcfgContainer [2023-12-16 11:14:11,115 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:14:11,115 INFO L158 Benchmark]: Toolchain (without parser) took 80681.03ms. Allocated memory is still 211.8MB. Free memory was 174.6MB in the beginning and 94.7MB in the end (delta: 79.8MB). Peak memory consumption was 81.1MB. Max. memory is 8.0GB. [2023-12-16 11:14:11,116 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 211.8MB. Free memory is still 168.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:14:11,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.96ms. Allocated memory is still 211.8MB. Free memory was 174.3MB in the beginning and 158.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 11:14:11,116 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.24ms. Allocated memory is still 211.8MB. Free memory was 158.2MB in the beginning and 155.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 11:14:11,116 INFO L158 Benchmark]: Boogie Preprocessor took 48.42ms. Allocated memory is still 211.8MB. Free memory was 155.7MB in the beginning and 152.2MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 11:14:11,117 INFO L158 Benchmark]: RCFGBuilder took 13522.09ms. Allocated memory is still 211.8MB. Free memory was 151.9MB in the beginning and 126.3MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 11:14:11,117 INFO L158 Benchmark]: TraceAbstraction took 66840.12ms. Allocated memory is still 211.8MB. Free memory was 125.7MB in the beginning and 94.7MB in the end (delta: 30.9MB). Peak memory consumption was 31.8MB. Max. memory is 8.0GB. [2023-12-16 11:14:11,118 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 211.8MB. Free memory is still 168.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 215.96ms. Allocated memory is still 211.8MB. Free memory was 174.3MB in the beginning and 158.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.24ms. Allocated memory is still 211.8MB. Free memory was 158.2MB in the beginning and 155.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.42ms. Allocated memory is still 211.8MB. Free memory was 155.7MB in the beginning and 152.2MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 13522.09ms. Allocated memory is still 211.8MB. Free memory was 151.9MB in the beginning and 126.3MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 66840.12ms. Allocated memory is still 211.8MB. Free memory was 125.7MB in the beginning and 94.7MB in the end (delta: 30.9MB). Peak memory consumption was 31.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.8s, OverallIterations: 3, TraceHistogramMax: 31, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 52.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 50.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 839 SdHoareTripleChecker+Invalid, 49.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 456 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 383 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 763 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 574 NumberOfCodeBlocks, 574 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 761 ConstructedInterpolants, 0 QuantifiedInterpolants, 2867 SizeOfPredicates, 8 NumberOfNonLiveVariables, 952 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7362/7440 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