/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 08:29:00,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 08:29:00,276 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 08:29:00,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 08:29:00,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 08:29:00,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 08:29:00,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 08:29:00,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 08:29:00,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 08:29:00,314 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 08:29:00,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 08:29:00,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 08:29:00,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 08:29:00,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 08:29:00,317 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 08:29:00,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 08:29:00,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 08:29:00,318 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 08:29:00,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 08:29:00,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 08:29:00,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 08:29:00,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 08:29:00,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 08:29:00,320 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 08:29:00,320 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 08:29:00,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 08:29:00,320 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 08:29:00,321 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 08:29:00,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 08:29:00,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 08:29:00,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 08:29:00,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 08:29:00,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 08:29:00,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 08:29:00,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 08:29:00,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 08:29:00,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 08:29:00,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 08:29:00,323 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 08:29:00,323 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 08:29:00,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 08:29:00,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 08:29:00,324 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 08:29:00,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 08:29:00,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 08:29:00,324 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 08:29:00,325 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 08:29:00,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 08:29:00,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 08:29:00,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 08:29:00,547 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 08:29:00,552 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 08:29:00,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-4.i [2023-12-23 08:29:01,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 08:29:01,895 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 08:29:01,896 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-4.i [2023-12-23 08:29:01,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435b4daf1/faa087e6b4864f26a7df82de3af4f918/FLAG2ef2b1c3f [2023-12-23 08:29:01,916 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/435b4daf1/faa087e6b4864f26a7df82de3af4f918 [2023-12-23 08:29:01,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 08:29:01,919 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 08:29:01,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 08:29:01,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 08:29:01,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 08:29:01,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:29:01" (1/1) ... [2023-12-23 08:29:01,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9a6bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:01, skipping insertion in model container [2023-12-23 08:29:01,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 08:29:01" (1/1) ... [2023-12-23 08:29:01,963 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 08:29:02,091 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-4.i[918,931] [2023-12-23 08:29:02,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 08:29:02,178 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 08:29:02,187 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-4.i[918,931] [2023-12-23 08:29:02,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 08:29:02,249 INFO L206 MainTranslator]: Completed translation [2023-12-23 08:29:02,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02 WrapperNode [2023-12-23 08:29:02,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 08:29:02,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 08:29:02,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 08:29:02,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 08:29:02,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,324 INFO L138 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 237 [2023-12-23 08:29:02,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 08:29:02,326 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 08:29:02,326 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 08:29:02,326 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 08:29:02,336 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,361 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 08:29:02,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 08:29:02,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 08:29:02,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 08:29:02,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 08:29:02,388 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (1/1) ... [2023-12-23 08:29:02,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 08:29:02,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 08:29:02,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 08:29:02,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 08:29:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 08:29:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 08:29:02,482 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 08:29:02,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 08:29:02,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 08:29:02,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 08:29:02,591 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 08:29:02,595 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 08:29:03,625 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 08:29:03,708 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 08:29:03,708 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 08:29:03,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:29:03 BoogieIcfgContainer [2023-12-23 08:29:03,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 08:29:03,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 08:29:03,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 08:29:03,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 08:29:03,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 08:29:01" (1/3) ... [2023-12-23 08:29:03,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9ab9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:29:03, skipping insertion in model container [2023-12-23 08:29:03,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 08:29:02" (2/3) ... [2023-12-23 08:29:03,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9ab9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 08:29:03, skipping insertion in model container [2023-12-23 08:29:03,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 08:29:03" (3/3) ... [2023-12-23 08:29:03,719 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-4.i [2023-12-23 08:29:03,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 08:29:03,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 08:29:03,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 08:29:03,805 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;@48e31424, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 08:29:03,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 08:29:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 59 states have internal predecessors, (85), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-23 08:29:03,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2023-12-23 08:29:03,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:29:03,846 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:29:03,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:29:03,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:29:03,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1256067748, now seen corresponding path program 1 times [2023-12-23 08:29:03,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:29:03,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498955446] [2023-12-23 08:29:03,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:03,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:03,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:29:03,874 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:29:03,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 08:29:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:04,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 08:29:04,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:29:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-23 08:29:04,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:29:04,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:29:04,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498955446] [2023-12-23 08:29:04,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498955446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:29:04,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:29:04,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 08:29:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490215832] [2023-12-23 08:29:04,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:29:04,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 08:29:04,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:29:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 08:29:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 08:29:04,343 INFO L87 Difference]: Start difference. First operand has 101 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 59 states have internal predecessors, (85), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-23 08:29:04,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:29:04,565 INFO L93 Difference]: Finished difference Result 199 states and 368 transitions. [2023-12-23 08:29:04,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 08:29:04,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 243 [2023-12-23 08:29:04,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:29:04,588 INFO L225 Difference]: With dead ends: 199 [2023-12-23 08:29:04,588 INFO L226 Difference]: Without dead ends: 99 [2023-12-23 08:29:04,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 08:29:04,601 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 08:29:04,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 08:29:04,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-23 08:29:04,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-12-23 08:29:04,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-23 08:29:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 159 transitions. [2023-12-23 08:29:04,654 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 159 transitions. Word has length 243 [2023-12-23 08:29:04,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:29:04,659 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 159 transitions. [2023-12-23 08:29:04,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-23 08:29:04,659 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 159 transitions. [2023-12-23 08:29:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-23 08:29:04,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:29:04,663 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:29:04,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 08:29:04,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:04,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:29:04,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:29:04,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1463813952, now seen corresponding path program 1 times [2023-12-23 08:29:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:29:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787595206] [2023-12-23 08:29:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:04,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:29:04,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:29:04,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 08:29:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:05,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 08:29:05,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:29:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-23 08:29:06,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:29:06,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:29:06,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787595206] [2023-12-23 08:29:06,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787595206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:29:06,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:29:06,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 08:29:06,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008615746] [2023-12-23 08:29:06,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:29:06,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 08:29:06,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:29:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 08:29:06,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 08:29:06,455 INFO L87 Difference]: Start difference. First operand 99 states and 159 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-23 08:29:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:29:07,546 INFO L93 Difference]: Finished difference Result 296 states and 476 transitions. [2023-12-23 08:29:07,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 08:29:07,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 244 [2023-12-23 08:29:07,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:29:07,565 INFO L225 Difference]: With dead ends: 296 [2023-12-23 08:29:07,565 INFO L226 Difference]: Without dead ends: 198 [2023-12-23 08:29:07,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 08:29:07,568 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 122 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-23 08:29:07,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 515 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-23 08:29:07,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-12-23 08:29:07,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 170. [2023-12-23 08:29:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 87 states have (on average 1.2758620689655173) internal successors, (111), 87 states have internal predecessors, (111), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-23 08:29:07,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 271 transitions. [2023-12-23 08:29:07,605 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 271 transitions. Word has length 244 [2023-12-23 08:29:07,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:29:07,606 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 271 transitions. [2023-12-23 08:29:07,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-23 08:29:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 271 transitions. [2023-12-23 08:29:07,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-12-23 08:29:07,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:29:07,609 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:29:07,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 08:29:07,819 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 [2023-12-23 08:29:07,820 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:29:07,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:29:07,820 INFO L85 PathProgramCache]: Analyzing trace with hash -837008638, now seen corresponding path program 1 times [2023-12-23 08:29:07,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:29:07,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026173446] [2023-12-23 08:29:07,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:07,822 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:07,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:29:07,823 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) [2023-12-23 08:29:07,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 08:29:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:08,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 08:29:08,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:29:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 379 proven. 219 refuted. 0 times theorem prover too weak. 2522 trivial. 0 not checked. [2023-12-23 08:29:08,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:29:09,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 9 proven. 222 refuted. 0 times theorem prover too weak. 2889 trivial. 0 not checked. [2023-12-23 08:29:09,546 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:29:09,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026173446] [2023-12-23 08:29:09,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026173446] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 08:29:09,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 08:29:09,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-23 08:29:09,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847800516] [2023-12-23 08:29:09,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 08:29:09,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 08:29:09,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:29:09,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 08:29:09,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-23 08:29:09,549 INFO L87 Difference]: Start difference. First operand 170 states and 271 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (78), 3 states have call predecessors, (78), 7 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2023-12-23 08:29:11,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:29:11,193 INFO L93 Difference]: Finished difference Result 333 states and 513 transitions. [2023-12-23 08:29:11,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 08:29:11,196 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (78), 3 states have call predecessors, (78), 7 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 244 [2023-12-23 08:29:11,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:29:11,202 INFO L225 Difference]: With dead ends: 333 [2023-12-23 08:29:11,203 INFO L226 Difference]: Without dead ends: 232 [2023-12-23 08:29:11,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 473 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2023-12-23 08:29:11,208 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 293 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-23 08:29:11,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 624 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-23 08:29:11,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-23 08:29:11,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 189. [2023-12-23 08:29:11,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 102 states have (on average 1.1764705882352942) internal successors, (120), 102 states have internal predecessors, (120), 80 states have call successors, (80), 6 states have call predecessors, (80), 6 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-23 08:29:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 280 transitions. [2023-12-23 08:29:11,271 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 280 transitions. Word has length 244 [2023-12-23 08:29:11,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:29:11,276 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 280 transitions. [2023-12-23 08:29:11,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (78), 3 states have call predecessors, (78), 7 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2023-12-23 08:29:11,276 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 280 transitions. [2023-12-23 08:29:11,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-23 08:29:11,280 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:29:11,281 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:29:11,294 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 [2023-12-23 08:29:11,491 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 [2023-12-23 08:29:11,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:29:11,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:29:11,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1876418439, now seen corresponding path program 1 times [2023-12-23 08:29:11,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:29:11,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345442838] [2023-12-23 08:29:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:11,493 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:11,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:29:11,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:29:11,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 08:29:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:11,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 08:29:11,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:29:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 193 proven. 114 refuted. 0 times theorem prover too weak. 2813 trivial. 0 not checked. [2023-12-23 08:29:12,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:29:13,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 3 proven. 114 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2023-12-23 08:29:13,150 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:29:13,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345442838] [2023-12-23 08:29:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345442838] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 08:29:13,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 08:29:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 9 [2023-12-23 08:29:13,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703275652] [2023-12-23 08:29:13,151 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 08:29:13,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 08:29:13,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:29:13,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 08:29:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-23 08:29:13,153 INFO L87 Difference]: Start difference. First operand 189 states and 280 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (80), 3 states have call predecessors, (80), 5 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-23 08:29:14,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:29:14,389 INFO L93 Difference]: Finished difference Result 332 states and 488 transitions. [2023-12-23 08:29:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-23 08:29:14,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (80), 3 states have call predecessors, (80), 5 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 245 [2023-12-23 08:29:14,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:29:14,406 INFO L225 Difference]: With dead ends: 332 [2023-12-23 08:29:14,406 INFO L226 Difference]: Without dead ends: 222 [2023-12-23 08:29:14,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 480 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-23 08:29:14,407 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 151 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-23 08:29:14,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 382 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-23 08:29:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-12-23 08:29:14,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 183. [2023-12-23 08:29:14,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 96 states have (on average 1.1666666666666667) internal successors, (112), 96 states have internal predecessors, (112), 80 states have call successors, (80), 6 states have call predecessors, (80), 6 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-23 08:29:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 272 transitions. [2023-12-23 08:29:14,430 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 272 transitions. Word has length 245 [2023-12-23 08:29:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:29:14,431 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 272 transitions. [2023-12-23 08:29:14,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 2 states have call successors, (80), 3 states have call predecessors, (80), 5 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-23 08:29:14,431 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 272 transitions. [2023-12-23 08:29:14,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-23 08:29:14,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:29:14,433 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:29:14,445 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 (5)] Ended with exit code 0 [2023-12-23 08:29:14,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:14,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:29:14,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:29:14,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1898639382, now seen corresponding path program 1 times [2023-12-23 08:29:14,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:29:14,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336306567] [2023-12-23 08:29:14,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:14,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:14,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:29:14,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:29:14,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 08:29:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:14,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 08:29:14,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:29:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2023-12-23 08:29:15,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 08:29:15,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:29:15,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1336306567] [2023-12-23 08:29:15,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1336306567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 08:29:15,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 08:29:15,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 08:29:15,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285498683] [2023-12-23 08:29:15,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 08:29:15,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 08:29:15,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:29:15,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 08:29:15,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 08:29:15,206 INFO L87 Difference]: Start difference. First operand 183 states and 272 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-23 08:29:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:29:16,043 INFO L93 Difference]: Finished difference Result 407 states and 610 transitions. [2023-12-23 08:29:16,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 08:29:16,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 245 [2023-12-23 08:29:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:29:16,046 INFO L225 Difference]: With dead ends: 407 [2023-12-23 08:29:16,046 INFO L226 Difference]: Without dead ends: 303 [2023-12-23 08:29:16,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-23 08:29:16,047 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 238 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 08:29:16,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 420 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 08:29:16,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-23 08:29:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 284. [2023-12-23 08:29:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 154 states have (on average 1.1883116883116882) internal successors, (183), 154 states have internal predecessors, (183), 120 states have call successors, (120), 9 states have call predecessors, (120), 9 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-23 08:29:16,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 423 transitions. [2023-12-23 08:29:16,078 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 423 transitions. Word has length 245 [2023-12-23 08:29:16,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:29:16,079 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 423 transitions. [2023-12-23 08:29:16,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2023-12-23 08:29:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 423 transitions. [2023-12-23 08:29:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-23 08:29:16,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:29:16,081 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:29:16,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-23 08:29:16,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:16,293 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:29:16,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:29:16,294 INFO L85 PathProgramCache]: Analyzing trace with hash 618775704, now seen corresponding path program 1 times [2023-12-23 08:29:16,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:29:16,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523071255] [2023-12-23 08:29:16,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:16,294 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:16,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:29:16,296 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:29:16,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 08:29:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:16,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 08:29:16,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:29:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1047 proven. 93 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked. [2023-12-23 08:29:17,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:29:18,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 08:29:18,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523071255] [2023-12-23 08:29:18,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523071255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:29:18,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [550709814] [2023-12-23 08:29:18,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:18,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 08:29:18,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 08:29:18,134 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 08:29:18,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 08:29:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:19,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 08:29:19,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 08:29:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1198 proven. 177 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2023-12-23 08:29:20,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 08:29:20,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [550709814] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 08:29:20,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 08:29:20,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2023-12-23 08:29:20,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260391500] [2023-12-23 08:29:20,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 08:29:20,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-23 08:29:20,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 08:29:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-23 08:29:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-23 08:29:20,876 INFO L87 Difference]: Start difference. First operand 284 states and 423 transitions. Second operand has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 16 states have internal predecessors, (97), 5 states have call successors, (80), 5 states have call predecessors, (80), 8 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-12-23 08:29:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 08:29:26,473 INFO L93 Difference]: Finished difference Result 416 states and 603 transitions. [2023-12-23 08:29:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-23 08:29:26,474 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 16 states have internal predecessors, (97), 5 states have call successors, (80), 5 states have call predecessors, (80), 8 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) Word has length 245 [2023-12-23 08:29:26,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 08:29:26,476 INFO L225 Difference]: With dead ends: 416 [2023-12-23 08:29:26,476 INFO L226 Difference]: Without dead ends: 211 [2023-12-23 08:29:26,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=457, Invalid=1183, Unknown=0, NotChecked=0, Total=1640 [2023-12-23 08:29:26,479 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 322 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-23 08:29:26,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 502 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-23 08:29:26,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-23 08:29:26,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 199. [2023-12-23 08:29:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 108 states have (on average 1.1296296296296295) internal successors, (122), 108 states have internal predecessors, (122), 80 states have call successors, (80), 10 states have call predecessors, (80), 10 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2023-12-23 08:29:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 282 transitions. [2023-12-23 08:29:26,513 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 282 transitions. Word has length 245 [2023-12-23 08:29:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 08:29:26,514 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 282 transitions. [2023-12-23 08:29:26,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 16 states have internal predecessors, (97), 5 states have call successors, (80), 5 states have call predecessors, (80), 8 states have return successors, (80), 5 states have call predecessors, (80), 5 states have call successors, (80) [2023-12-23 08:29:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 282 transitions. [2023-12-23 08:29:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-23 08:29:26,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 08:29:26,517 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:29:26,531 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 (7)] Forceful destruction successful, exit code 0 [2023-12-23 08:29:26,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 08:29:26,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 08:29:26,929 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 08:29:26,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 08:29:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1735851329, now seen corresponding path program 1 times [2023-12-23 08:29:26,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 08:29:26,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816723835] [2023-12-23 08:29:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 08:29:26,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:29:26,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 08:29:26,931 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 08:29:26,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-23 08:29:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 08:29:27,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-23 08:29:27,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 08:43:28,010 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 08:43:28,010 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 08:43:28,379 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 08:43:28,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-23 08:43:28,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 08:43:28,585 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 247 with TraceHistMax 40,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-68-3-2-4-3-4-3-3-2-3-2-3-2-3-2-3-2-3-2-3-2-4-3-3-2-2-2-2-2-3-2-3-2-4-3-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. [2023-12-23 08:43:28,589 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-23 08:43:28,591 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 08:43:28,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 08:43:28 BoogieIcfgContainer [2023-12-23 08:43:28,594 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 08:43:28,595 INFO L158 Benchmark]: Toolchain (without parser) took 866676.07ms. Allocated memory was 268.4MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 206.5MB in the beginning and 712.0MB in the end (delta: -505.4MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-23 08:43:28,595 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 08:43:28,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.66ms. Allocated memory is still 268.4MB. Free memory was 206.0MB in the beginning and 189.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-23 08:43:28,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.61ms. Allocated memory is still 268.4MB. Free memory was 189.2MB in the beginning and 186.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-23 08:43:28,596 INFO L158 Benchmark]: Boogie Preprocessor took 61.08ms. Allocated memory is still 268.4MB. Free memory was 186.6MB in the beginning and 182.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 08:43:28,596 INFO L158 Benchmark]: RCFGBuilder took 1321.92ms. Allocated memory is still 268.4MB. Free memory was 182.9MB in the beginning and 152.0MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-23 08:43:28,596 INFO L158 Benchmark]: TraceAbstraction took 864881.28ms. Allocated memory was 268.4MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 151.5MB in the beginning and 712.0MB in the end (delta: -560.5MB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-23 08:43:28,598 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 181.4MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 330.66ms. Allocated memory is still 268.4MB. Free memory was 206.0MB in the beginning and 189.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 73.61ms. Allocated memory is still 268.4MB. Free memory was 189.2MB in the beginning and 186.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 61.08ms. Allocated memory is still 268.4MB. Free memory was 186.6MB in the beginning and 182.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1321.92ms. Allocated memory is still 268.4MB. Free memory was 182.9MB in the beginning and 152.0MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 864881.28ms. Allocated memory was 268.4MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 151.5MB in the beginning and 712.0MB in the end (delta: -560.5MB). Peak memory consumption was 1.4GB. 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 247 with TraceHistMax 40,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-68-3-2-4-3-4-3-3-2-3-2-3-2-3-2-3-2-3-2-3-2-4-3-3-2-2-2-2-2-3-2-3-2-4-3-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 864.8s, OverallIterations: 7, TraceHistogramMax: 40, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1128 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1126 mSDsluCounter, 2599 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1620 mSDsCounter, 429 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2028 IncrementalHoareTripleChecker+Invalid, 2457 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 429 mSolverCounterUnsat, 979 mSDtfsCounter, 2028 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2278 GetRequests, 2191 SyntacticMatches, 3 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=284occurred in iteration=5, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 141 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 1711 NumberOfCodeBlocks, 1711 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2191 ConstructedInterpolants, 1 QuantifiedInterpolants, 12166 SizeOfPredicates, 36 NumberOfNonLiveVariables, 2788 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 27141/28080 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