/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-ps-ci_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:43:08,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:43:08,961 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 12:43:08,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:43:08,965 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:43:08,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:43:08,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:43:08,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:43:08,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:43:08,991 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:43:08,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:43:08,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:43:08,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:43:08,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:43:08,994 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:43:08,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:43:08,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:43:08,994 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:43:08,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:43:08,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:43:08,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:43:08,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:43:08,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:43:08,995 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:43:08,996 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:43:08,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:43:08,996 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:43:08,996 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:43:08,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:43:08,996 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:43:08,997 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:43:08,997 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:43:08,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:43:08,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:43:08,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:43:08,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:43:08,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:43:08,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:43:08,998 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:43:08,998 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:43:08,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:43:08,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:43:08,999 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:43:08,999 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:43:08,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:43:08,999 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:43:08,999 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:43:09,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:43:09,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:43:09,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:43:09,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:43:09,184 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:43:09,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-87.i [2023-12-16 12:43:10,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:43:10,381 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:43:10,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-87.i [2023-12-16 12:43:10,388 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f38f403d/42981d14d59c4d9fa450c66793e86340/FLAG89755e174 [2023-12-16 12:43:10,400 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f38f403d/42981d14d59c4d9fa450c66793e86340 [2023-12-16 12:43:10,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:43:10,403 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:43:10,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:43:10,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:43:10,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:43:10,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cef3308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10, skipping insertion in model container [2023-12-16 12:43:10,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:43:10,534 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-ps-ci_file-87.i[919,932] [2023-12-16 12:43:10,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:43:10,610 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:43:10,622 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-ps-ci_file-87.i[919,932] [2023-12-16 12:43:10,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:43:10,671 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:43:10,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10 WrapperNode [2023-12-16 12:43:10,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:43:10,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:43:10,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:43:10,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:43:10,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,710 INFO L138 Inliner]: procedures = 27, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 255 [2023-12-16 12:43:10,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:43:10,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:43:10,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:43:10,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:43:10,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,736 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 12:43:10,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,746 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,748 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:43:10,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:43:10,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:43:10,756 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:43:10,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (1/1) ... [2023-12-16 12:43:10,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:43:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:43:10,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 12:43:10,834 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 12:43:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:43:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:43:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:43:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:43:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:43:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:43:10,910 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:43:10,911 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:43:21,364 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:43:21,404 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:43:21,404 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:43:21,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:43:21 BoogieIcfgContainer [2023-12-16 12:43:21,404 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:43:21,406 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:43:21,406 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:43:21,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:43:21,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:43:10" (1/3) ... [2023-12-16 12:43:21,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524f66eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:43:21, skipping insertion in model container [2023-12-16 12:43:21,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:43:10" (2/3) ... [2023-12-16 12:43:21,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524f66eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:43:21, skipping insertion in model container [2023-12-16 12:43:21,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:43:21" (3/3) ... [2023-12-16 12:43:21,410 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-87.i [2023-12-16 12:43:21,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:43:21,423 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:43:21,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:43:21,473 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;@5bcddd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:43:21,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:43:21,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 59 states have internal predecessors, (79), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-16 12:43:21,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-16 12:43:21,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:43:21,499 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:21,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:43:21,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:43:21,503 INFO L85 PathProgramCache]: Analyzing trace with hash 306216846, now seen corresponding path program 1 times [2023-12-16 12:43:21,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:43:21,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472470894] [2023-12-16 12:43:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:43:21,514 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 12:43:21,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:43:21,520 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 12:43:21,531 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 12:43:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:43:22,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:43:22,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:43:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 1674 proven. 0 refuted. 0 times theorem prover too weak. 2466 trivial. 0 not checked. [2023-12-16 12:43:22,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:43:22,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:43:22,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472470894] [2023-12-16 12:43:22,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472470894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:43:22,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:43:22,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:43:22,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052036516] [2023-12-16 12:43:22,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:43:22,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:43:22,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:43:22,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:43:22,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:43:22,314 INFO L87 Difference]: Start difference. First operand has 107 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 59 states have internal predecessors, (79), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-16 12:43:26,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:43:26,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:43:26,575 INFO L93 Difference]: Finished difference Result 211 states and 386 transitions. [2023-12-16 12:43:26,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:43:26,641 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 276 [2023-12-16 12:43:26,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:43:26,647 INFO L225 Difference]: With dead ends: 211 [2023-12-16 12:43:26,647 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 12:43:26,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 275 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 12:43:26,652 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 12:43:26,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 12:43:26,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 12:43:26,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-16 12:43:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 57 states have internal predecessors, (74), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-16 12:43:26,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 166 transitions. [2023-12-16 12:43:26,690 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 166 transitions. Word has length 276 [2023-12-16 12:43:26,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:43:26,690 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 166 transitions. [2023-12-16 12:43:26,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-16 12:43:26,691 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 166 transitions. [2023-12-16 12:43:26,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-12-16 12:43:26,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:43:26,695 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:26,714 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 12:43:26,910 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 12:43:26,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:43:26,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:43:26,911 INFO L85 PathProgramCache]: Analyzing trace with hash -797251310, now seen corresponding path program 1 times [2023-12-16 12:43:26,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:43:26,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [938726376] [2023-12-16 12:43:26,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:43:26,912 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 12:43:26,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:43:26,913 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 12:43:26,943 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 12:43:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:43:27,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:43:27,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:43:29,234 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 1809 proven. 93 refuted. 0 times theorem prover too weak. 2238 trivial. 0 not checked. [2023-12-16 12:43:29,234 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:43:30,086 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 42 proven. 93 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2023-12-16 12:43:30,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:43:30,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [938726376] [2023-12-16 12:43:30,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [938726376] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:43:30,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:43:30,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-16 12:43:30,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148518472] [2023-12-16 12:43:30,087 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:43:30,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 12:43:30,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:43:30,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 12:43:30,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 12:43:30,090 INFO L87 Difference]: Start difference. First operand 105 states and 166 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2023-12-16 12:43:35,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:43:39,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:43:43,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 12:43:44,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:43:44,384 INFO L93 Difference]: Finished difference Result 239 states and 374 transitions. [2023-12-16 12:43:44,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 12:43:44,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 276 [2023-12-16 12:43:44,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:43:44,390 INFO L225 Difference]: With dead ends: 239 [2023-12-16 12:43:44,390 INFO L226 Difference]: Without dead ends: 135 [2023-12-16 12:43:44,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 543 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-12-16 12:43:44,392 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 232 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 218 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-16 12:43:44,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 289 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 337 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2023-12-16 12:43:44,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-16 12:43:44,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2023-12-16 12:43:44,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 68 states have internal predecessors, (82), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-16 12:43:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 202 transitions. [2023-12-16 12:43:44,413 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 202 transitions. Word has length 276 [2023-12-16 12:43:44,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:43:44,413 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 202 transitions. [2023-12-16 12:43:44,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2023-12-16 12:43:44,414 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 202 transitions. [2023-12-16 12:43:44,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-12-16 12:43:44,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:43:44,417 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:43:44,436 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 12:43:44,632 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 12:43:44,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:43:44,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:43:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1971639116, now seen corresponding path program 1 times [2023-12-16 12:43:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:43:44,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930847663] [2023-12-16 12:43:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:43:44,634 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 12:43:44,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:43:44,636 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 12:43:44,652 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 12:43:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:43:47,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-16 12:43:47,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 12:44:26,081 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 12:44:26,095 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:44:26,105 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 12:44:26,120 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 12:44:26,296 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 12:44:26,297 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 278 with TraceHistMax 46,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-17-2-2-1 context. [2023-12-16 12:44:26,300 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 12:44:26,302 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:44:26,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:44:26 BoogieIcfgContainer [2023-12-16 12:44:26,304 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:44:26,304 INFO L158 Benchmark]: Toolchain (without parser) took 75901.41ms. Allocated memory is still 319.8MB. Free memory was 266.1MB in the beginning and 231.6MB in the end (delta: 34.5MB). Peak memory consumption was 35.5MB. Max. memory is 8.0GB. [2023-12-16 12:44:26,304 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:44:26,305 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.61ms. Allocated memory is still 319.8MB. Free memory was 266.1MB in the beginning and 248.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:44:26,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.90ms. Allocated memory is still 319.8MB. Free memory was 248.8MB in the beginning and 245.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:44:26,305 INFO L158 Benchmark]: Boogie Preprocessor took 44.15ms. Allocated memory is still 319.8MB. Free memory was 245.7MB in the beginning and 242.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 12:44:26,306 INFO L158 Benchmark]: RCFGBuilder took 10648.74ms. Allocated memory is still 319.8MB. Free memory was 241.5MB in the beginning and 209.5MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. [2023-12-16 12:44:26,306 INFO L158 Benchmark]: TraceAbstraction took 64897.86ms. Allocated memory is still 319.8MB. Free memory was 209.0MB in the beginning and 231.6MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:44:26,307 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 is still 144.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 268.61ms. Allocated memory is still 319.8MB. Free memory was 266.1MB in the beginning and 248.8MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.90ms. Allocated memory is still 319.8MB. Free memory was 248.8MB in the beginning and 245.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.15ms. Allocated memory is still 319.8MB. Free memory was 245.7MB in the beginning and 242.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 10648.74ms. Allocated memory is still 319.8MB. Free memory was 241.5MB in the beginning and 209.5MB in the end (delta: 32.0MB). Peak memory consumption was 32.5MB. Max. memory is 8.0GB. * TraceAbstraction took 64897.86ms. Allocated memory is still 319.8MB. Free memory was 209.0MB in the beginning and 231.6MB in the end (delta: -22.7MB). There was no memory consumed. 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 278 with TraceHistMax 46,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-17-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.8s, OverallIterations: 3, TraceHistogramMax: 46, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 18.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 247 SdHoareTripleChecker+Valid, 18.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 452 SdHoareTripleChecker+Invalid, 17.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 155 mSDsCounter, 218 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 218 mSolverCounterUnsat, 297 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 833 GetRequests, 818 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=2, 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 552 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 825 ConstructedInterpolants, 0 QuantifiedInterpolants, 1606 SizeOfPredicates, 8 NumberOfNonLiveVariables, 890 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 12234/12420 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