/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-64.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:25:59,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:25:59,943 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 11:25:59,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:25:59,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:25:59,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:25:59,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:25:59,966 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:25:59,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:25:59,967 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:25:59,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:25:59,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:25:59,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:25:59,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:25:59,969 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:25:59,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:25:59,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:25:59,970 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:25:59,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:25:59,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:25:59,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:25:59,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:25:59,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:25:59,971 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:25:59,972 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:25:59,972 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:25:59,972 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:25:59,972 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:25:59,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:25:59,973 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:25:59,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:25:59,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:25:59,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:25:59,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:25:59,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:25:59,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:25:59,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:25:59,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:25:59,974 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:25:59,974 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:25:59,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:25:59,975 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:25:59,975 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:25:59,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:25:59,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:25:59,975 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:25:59,975 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:26:00,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:26:00,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:26:00,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:26:00,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:26:00,199 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:26:00,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-64.i [2023-12-16 11:26:01,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:26:01,523 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:26:01,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-64.i [2023-12-16 11:26:01,537 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3a19f84/290583631eaa4b2a91188c77bf7e4979/FLAG73f9bb35b [2023-12-16 11:26:01,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3a19f84/290583631eaa4b2a91188c77bf7e4979 [2023-12-16 11:26:01,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:26:01,561 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:26:01,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:26:01,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:26:01,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:26:01,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:26:01" (1/1) ... [2023-12-16 11:26:01,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41cc8bc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:01, skipping insertion in model container [2023-12-16 11:26:01,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:26:01" (1/1) ... [2023-12-16 11:26:01,625 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:26:01,749 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-64.i[916,929] [2023-12-16 11:26:01,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:26:01,981 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:26:01,991 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-64.i[916,929] [2023-12-16 11:26:02,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:26:02,101 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:26:02,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02 WrapperNode [2023-12-16 11:26:02,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:26:02,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:26:02,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:26:02,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:26:02,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,141 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,180 INFO L138 Inliner]: procedures = 27, calls = 116, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 640 [2023-12-16 11:26:02,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:26:02,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:26:02,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:26:02,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:26:02,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,203 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,237 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 11:26:02,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:26:02,338 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:26:02,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:26:02,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:26:02,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (1/1) ... [2023-12-16 11:26:02,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:26:02,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:26:02,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 11:26:02,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 11:26:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:26:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:26:02,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:26:02,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:26:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:26:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:26:02,544 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:26:02,547 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:26:50,859 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:26:50,923 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:26:50,924 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:26:50,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:26:50 BoogieIcfgContainer [2023-12-16 11:26:50,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:26:50,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:26:50,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:26:50,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:26:50,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:26:01" (1/3) ... [2023-12-16 11:26:50,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a07602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:26:50, skipping insertion in model container [2023-12-16 11:26:50,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:26:02" (2/3) ... [2023-12-16 11:26:50,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a07602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:26:50, skipping insertion in model container [2023-12-16 11:26:50,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:26:50" (3/3) ... [2023-12-16 11:26:50,938 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-64.i [2023-12-16 11:26:50,955 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:26:50,956 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:26:51,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:26:51,010 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;@5057207e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:26:51,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:26:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 171 states have (on average 1.608187134502924) internal successors, (275), 172 states have internal predecessors, (275), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-16 11:26:51,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2023-12-16 11:26:51,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:26:51,050 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:26:51,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:26:51,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:26:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1827347649, now seen corresponding path program 1 times [2023-12-16 11:26:51,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:26:51,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134837705] [2023-12-16 11:26:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:26:51,076 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:26:51,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:26:51,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:26:51,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 11:26:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:26:52,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:26:52,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:26:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 9932 proven. 0 refuted. 0 times theorem prover too weak. 11080 trivial. 0 not checked. [2023-12-16 11:26:53,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:26:53,084 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:26:53,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134837705] [2023-12-16 11:26:53,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1134837705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:26:53,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:26:53,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:26:53,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991381884] [2023-12-16 11:26:53,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:26:53,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:26:53,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:26:53,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:26:53,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:26:53,131 INFO L87 Difference]: Start difference. First operand has 277 states, 171 states have (on average 1.608187134502924) internal successors, (275), 172 states have internal predecessors, (275), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-16 11:26:53,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:26:53,291 INFO L93 Difference]: Finished difference Result 550 states and 1061 transitions. [2023-12-16 11:26:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:26:53,300 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 644 [2023-12-16 11:26:53,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:26:53,309 INFO L225 Difference]: With dead ends: 550 [2023-12-16 11:26:53,309 INFO L226 Difference]: Without dead ends: 274 [2023-12-16 11:26:53,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 643 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:26:53,317 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 11:26:53,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 468 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 11:26:53,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-12-16 11:26:53,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2023-12-16 11:26:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 169 states have (on average 1.5680473372781065) internal successors, (265), 169 states have internal predecessors, (265), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-16 11:26:53,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 471 transitions. [2023-12-16 11:26:53,418 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 471 transitions. Word has length 644 [2023-12-16 11:26:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:26:53,419 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 471 transitions. [2023-12-16 11:26:53,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-16 11:26:53,420 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 471 transitions. [2023-12-16 11:26:53,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2023-12-16 11:26:53,438 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:26:53,438 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:26:53,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 11:26:53,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:26:53,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:26:53,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:26:53,665 INFO L85 PathProgramCache]: Analyzing trace with hash 2067556252, now seen corresponding path program 1 times [2023-12-16 11:26:53,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:26:53,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146638143] [2023-12-16 11:26:53,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:26:53,667 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:26:53,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:26:53,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:26:53,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 11:26:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:26:55,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 11:26:55,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:27:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 9774 proven. 192 refuted. 0 times theorem prover too weak. 11046 trivial. 0 not checked. [2023-12-16 11:27:01,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:27:01,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:27:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146638143] [2023-12-16 11:27:01,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146638143] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:27:01,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1815258888] [2023-12-16 11:27:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:27:01,771 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:27:01,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:27:01,818 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:27:01,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 11:27:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:27:02,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:27:02,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:27:03,414 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-16 11:27:03,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:27:03,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1815258888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:27:03,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:27:03,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-16 11:27:03,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339743725] [2023-12-16 11:27:03,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:27:03,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:27:03,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:27:03,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:27:03,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 11:27:03,420 INFO L87 Difference]: Start difference. First operand 274 states and 471 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-16 11:27:03,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:27:03,685 INFO L93 Difference]: Finished difference Result 737 states and 1269 transitions. [2023-12-16 11:27:03,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:27:03,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 645 [2023-12-16 11:27:03,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:27:03,692 INFO L225 Difference]: With dead ends: 737 [2023-12-16 11:27:03,692 INFO L226 Difference]: Without dead ends: 464 [2023-12-16 11:27:03,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1364 GetRequests, 1356 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-16 11:27:03,694 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 298 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:27:03,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 934 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 11:27:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-12-16 11:27:03,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 461. [2023-12-16 11:27:03,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 298 states have (on average 1.587248322147651) internal successors, (473), 299 states have internal predecessors, (473), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2023-12-16 11:27:03,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 793 transitions. [2023-12-16 11:27:03,745 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 793 transitions. Word has length 645 [2023-12-16 11:27:03,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:27:03,747 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 793 transitions. [2023-12-16 11:27:03,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-16 11:27:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 793 transitions. [2023-12-16 11:27:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2023-12-16 11:27:03,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:27:03,754 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:27:03,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:27:04,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 11:27:04,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:27:04,166 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:27:04,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:27:04,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1466049434, now seen corresponding path program 1 times [2023-12-16 11:27:04,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:27:04,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115974831] [2023-12-16 11:27:04,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:27:04,169 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:27:04,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:27:04,170 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) [2023-12-16 11:27:04,173 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 [2023-12-16 11:27:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:27:05,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 11:27:05,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:27:09,844 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:27:09,855 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:27:09,889 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:27:09,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 11:27:10,056 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 [2023-12-16 11:27:10,057 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 646 with TraceHistMax 103,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-16 11:27:10,061 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 11:27:10,064 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:27:10,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:27:10 BoogieIcfgContainer [2023-12-16 11:27:10,066 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:27:10,066 INFO L158 Benchmark]: Toolchain (without parser) took 68505.05ms. Allocated memory is still 253.8MB. Free memory was 205.2MB in the beginning and 128.1MB in the end (delta: 77.1MB). Peak memory consumption was 77.5MB. Max. memory is 8.0GB. [2023-12-16 11:27:10,067 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 194.0MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:27:10,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.81ms. Allocated memory is still 253.8MB. Free memory was 205.2MB in the beginning and 173.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 11:27:10,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.52ms. Allocated memory is still 253.8MB. Free memory was 173.3MB in the beginning and 167.8MB in the end (delta: 5.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:27:10,076 INFO L158 Benchmark]: Boogie Preprocessor took 156.21ms. Allocated memory is still 253.8MB. Free memory was 167.8MB in the beginning and 159.0MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 11:27:10,077 INFO L158 Benchmark]: RCFGBuilder took 48586.92ms. Allocated memory is still 253.8MB. Free memory was 159.0MB in the beginning and 165.3MB in the end (delta: -6.3MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. [2023-12-16 11:27:10,077 INFO L158 Benchmark]: TraceAbstraction took 19139.68ms. Allocated memory is still 253.8MB. Free memory was 164.8MB in the beginning and 128.1MB in the end (delta: 36.7MB). Peak memory consumption was 36.1MB. Max. memory is 8.0GB. [2023-12-16 11:27:10,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 194.0MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 540.81ms. Allocated memory is still 253.8MB. Free memory was 205.2MB in the beginning and 173.7MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.52ms. Allocated memory is still 253.8MB. Free memory was 173.3MB in the beginning and 167.8MB in the end (delta: 5.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 156.21ms. Allocated memory is still 253.8MB. Free memory was 167.8MB in the beginning and 159.0MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 48586.92ms. Allocated memory is still 253.8MB. Free memory was 159.0MB in the beginning and 165.3MB in the end (delta: -6.3MB). Peak memory consumption was 20.4MB. Max. memory is 8.0GB. * TraceAbstraction took 19139.68ms. Allocated memory is still 253.8MB. Free memory was 164.8MB in the beginning and 128.1MB in the end (delta: 36.7MB). Peak memory consumption was 36.1MB. 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 646 with TraceHistMax 103,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 277 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.1s, OverallIterations: 3, TraceHistogramMax: 103, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 298 mSDsluCounter, 1402 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 453 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 949 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2007 GetRequests, 1999 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=461occurred in iteration=2, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.9s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 1934 NumberOfCodeBlocks, 1934 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 1931 ConstructedInterpolants, 0 QuantifiedInterpolants, 3320 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3119 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 62844/63036 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