/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:51:47,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:51:47,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:51:47,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:51:47,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:51:47,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:51:47,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:51:47,920 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:51:47,920 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:51:47,921 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:51:47,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:51:47,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:51:47,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:51:47,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:51:47,922 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:51:47,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:51:47,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:51:47,922 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:51:47,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:51:47,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:51:47,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:51:47,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:51:47,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:51:47,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:51:47,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:51:47,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:51:47,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:51:47,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:51:47,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:51:47,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:51:47,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:51:47,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:51:47,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:51:47,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:51:47,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:51:47,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:51:47,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:51:47,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:51:47,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:51:47,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:51:47,927 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:51:47,927 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:51:47,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:51:47,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:51:48,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:51:48,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:51:48,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:51:48,083 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:51:48,083 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:51:48,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i [2023-12-16 02:51:49,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:51:49,293 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:51:49,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i [2023-12-16 02:51:49,318 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d62fdeaae/1b09ede29bef45f9b41c315f41336d28/FLAGe055254e7 [2023-12-16 02:51:49,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d62fdeaae/1b09ede29bef45f9b41c315f41336d28 [2023-12-16 02:51:49,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:51:49,341 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:51:49,341 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:51:49,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:51:49,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:51:49,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d06e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49, skipping insertion in model container [2023-12-16 02:51:49,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,389 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:51:49,500 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-250_file-59.i[916,929] [2023-12-16 02:51:49,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:51:49,605 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:51:49,613 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-250_file-59.i[916,929] [2023-12-16 02:51:49,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:51:49,726 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:51:49,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49 WrapperNode [2023-12-16 02:51:49,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:51:49,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:51:49,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:51:49,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:51:49,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,802 INFO L138 Inliner]: procedures = 26, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 425 [2023-12-16 02:51:49,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:51:49,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:51:49,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:51:49,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:51:49,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,825 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,841 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 02:51:49,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:51:49,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:51:49,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:51:49,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:51:49,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (1/1) ... [2023-12-16 02:51:49,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:51:49,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:51:49,892 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 02:51:49,898 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 02:51:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:51:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 02:51:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 02:51:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:51:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:51:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:51:49,995 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:51:49,998 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:51:50,550 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:51:50,588 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:51:50,588 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:51:50,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:51:50 BoogieIcfgContainer [2023-12-16 02:51:50,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:51:50,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:51:50,590 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:51:50,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:51:50,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:51:49" (1/3) ... [2023-12-16 02:51:50,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f80810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:51:50, skipping insertion in model container [2023-12-16 02:51:50,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:51:49" (2/3) ... [2023-12-16 02:51:50,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f80810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:51:50, skipping insertion in model container [2023-12-16 02:51:50,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:51:50" (3/3) ... [2023-12-16 02:51:50,596 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-59.i [2023-12-16 02:51:50,607 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:51:50,607 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:51:50,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:51:50,654 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;@233438a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:51:50,654 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:51:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 111 states have (on average 1.5765765765765767) internal successors, (175), 112 states have internal predecessors, (175), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 02:51:50,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-16 02:51:50,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:51:50,682 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:50,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:51:50,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:51:50,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1990422721, now seen corresponding path program 1 times [2023-12-16 02:51:50,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:51:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100857670] [2023-12-16 02:51:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:51:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:51:50,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:51:50,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100857670] [2023-12-16 02:51:50,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 02:51:50,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491122572] [2023-12-16 02:51:50,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:50,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:50,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:51:50,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:51:51,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 02:51:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:51:51,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 02:51:51,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:51:51,312 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 6728 trivial. 0 not checked. [2023-12-16 02:51:51,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:51:51,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491122572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:51:51,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:51:51,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:51:51,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542511873] [2023-12-16 02:51:51,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:51:51,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:51:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:51:51,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:51:51,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:51:51,361 INFO L87 Difference]: Start difference. First operand has 173 states, 111 states have (on average 1.5765765765765767) internal successors, (175), 112 states have internal predecessors, (175), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-16 02:51:51,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:51:51,428 INFO L93 Difference]: Finished difference Result 343 states and 643 transitions. [2023-12-16 02:51:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:51:51,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) Word has length 373 [2023-12-16 02:51:51,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:51:51,439 INFO L225 Difference]: With dead ends: 343 [2023-12-16 02:51:51,439 INFO L226 Difference]: Without dead ends: 171 [2023-12-16 02:51:51,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 372 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 02:51:51,450 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:51:51,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:51:51,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-16 02:51:51,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-12-16 02:51:51,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 110 states have (on average 1.5363636363636364) internal successors, (169), 110 states have internal predecessors, (169), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 02:51:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 287 transitions. [2023-12-16 02:51:51,504 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 287 transitions. Word has length 373 [2023-12-16 02:51:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:51:51,504 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 287 transitions. [2023-12-16 02:51:51,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-16 02:51:51,505 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 287 transitions. [2023-12-16 02:51:51,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-16 02:51:51,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:51:51,511 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:51,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 02:51:51,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 02:51:51,712 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:51:51,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:51:51,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2145248075, now seen corresponding path program 1 times [2023-12-16 02:51:51,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:51:51,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658200368] [2023-12-16 02:51:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:51,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:51:51,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:51:51,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894224731] [2023-12-16 02:51:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:51,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:51,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:51:51,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:51:51,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 02:51:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:51:51,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 02:51:51,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:51:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 2778 proven. 126 refuted. 0 times theorem prover too weak. 3940 trivial. 0 not checked. [2023-12-16 02:51:52,324 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:51:52,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 48 proven. 126 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-16 02:51:52,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:51:52,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658200368] [2023-12-16 02:51:52,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:51:52,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894224731] [2023-12-16 02:51:52,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894224731] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:51:52,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:51:52,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-16 02:51:52,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349449402] [2023-12-16 02:51:52,623 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 02:51:52,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 02:51:52,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:51:52,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 02:51:52,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 02:51:52,628 INFO L87 Difference]: Start difference. First operand 171 states and 287 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2023-12-16 02:51:52,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:51:52,986 INFO L93 Difference]: Finished difference Result 347 states and 578 transitions. [2023-12-16 02:51:52,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 02:51:52,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) Word has length 373 [2023-12-16 02:51:52,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:51:52,989 INFO L225 Difference]: With dead ends: 347 [2023-12-16 02:51:52,989 INFO L226 Difference]: Without dead ends: 177 [2023-12-16 02:51:52,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 738 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-16 02:51:52,990 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 154 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:51:52,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 462 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 02:51:52,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-16 02:51:53,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2023-12-16 02:51:53,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 113 states have (on average 1.5132743362831858) internal successors, (171), 113 states have internal predecessors, (171), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 02:51:53,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 289 transitions. [2023-12-16 02:51:53,007 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 289 transitions. Word has length 373 [2023-12-16 02:51:53,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:51:53,008 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 289 transitions. [2023-12-16 02:51:53,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2023-12-16 02:51:53,008 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 289 transitions. [2023-12-16 02:51:53,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-16 02:51:53,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:51:53,011 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:53,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 02:51:53,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 02:51:53,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:51:53,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:51:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash -154594784, now seen corresponding path program 1 times [2023-12-16 02:51:53,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:51:53,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202682801] [2023-12-16 02:51:53,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:53,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:51:53,251 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:51:53,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1651089156] [2023-12-16 02:51:53,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:53,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:53,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:51:53,281 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:51:53,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 02:51:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:51:53,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 02:51:53,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:51:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 3499 proven. 21 refuted. 0 times theorem prover too weak. 3324 trivial. 0 not checked. [2023-12-16 02:51:54,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:51:54,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 153 proven. 21 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-16 02:51:54,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:51:54,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202682801] [2023-12-16 02:51:54,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:51:54,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651089156] [2023-12-16 02:51:54,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651089156] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:51:54,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:51:54,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-16 02:51:54,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964781261] [2023-12-16 02:51:54,554 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 02:51:54,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 02:51:54,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:51:54,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 02:51:54,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 02:51:54,556 INFO L87 Difference]: Start difference. First operand 175 states and 289 transitions. Second operand has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 6 states have call successors, (118), 4 states have call predecessors, (118), 6 states have return successors, (118), 6 states have call predecessors, (118), 6 states have call successors, (118) [2023-12-16 02:51:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:51:55,535 INFO L93 Difference]: Finished difference Result 632 states and 1042 transitions. [2023-12-16 02:51:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 02:51:55,535 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 6 states have call successors, (118), 4 states have call predecessors, (118), 6 states have return successors, (118), 6 states have call predecessors, (118), 6 states have call successors, (118) Word has length 374 [2023-12-16 02:51:55,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:51:55,539 INFO L225 Difference]: With dead ends: 632 [2023-12-16 02:51:55,539 INFO L226 Difference]: Without dead ends: 458 [2023-12-16 02:51:55,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2023-12-16 02:51:55,540 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 943 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:51:55,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 1320 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 02:51:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-12-16 02:51:55,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 351. [2023-12-16 02:51:55,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 227 states have (on average 1.5066079295154184) internal successors, (342), 227 states have internal predecessors, (342), 118 states have call successors, (118), 5 states have call predecessors, (118), 5 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-16 02:51:55,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 578 transitions. [2023-12-16 02:51:55,627 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 578 transitions. Word has length 374 [2023-12-16 02:51:55,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:51:55,628 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 578 transitions. [2023-12-16 02:51:55,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 6 states have call successors, (118), 4 states have call predecessors, (118), 6 states have return successors, (118), 6 states have call predecessors, (118), 6 states have call successors, (118) [2023-12-16 02:51:55,629 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 578 transitions. [2023-12-16 02:51:55,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-12-16 02:51:55,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:51:55,631 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:55,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 02:51:55,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:55,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:51:55,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:51:55,838 INFO L85 PathProgramCache]: Analyzing trace with hash 735891170, now seen corresponding path program 1 times [2023-12-16 02:51:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:51:55,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040539877] [2023-12-16 02:51:55,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:55,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:51:55,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:51:55,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190826227] [2023-12-16 02:51:55,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:55,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:55,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:51:55,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:51:55,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 02:51:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:51:56,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 02:51:56,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:51:56,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 02:51:56,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:51:56,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:51:56,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040539877] [2023-12-16 02:51:56,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:51:56,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190826227] [2023-12-16 02:51:56,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190826227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:51:56,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:51:56,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:51:56,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186587241] [2023-12-16 02:51:56,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:51:56,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:51:56,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:51:56,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:51:56,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:51:56,513 INFO L87 Difference]: Start difference. First operand 351 states and 578 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 02:51:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:51:56,668 INFO L93 Difference]: Finished difference Result 919 states and 1516 transitions. [2023-12-16 02:51:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:51:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 375 [2023-12-16 02:51:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:51:56,672 INFO L225 Difference]: With dead ends: 919 [2023-12-16 02:51:56,672 INFO L226 Difference]: Without dead ends: 569 [2023-12-16 02:51:56,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:51:56,673 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 239 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:51:56,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 845 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 02:51:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-12-16 02:51:56,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 535. [2023-12-16 02:51:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 349 states have (on average 1.518624641833811) internal successors, (530), 349 states have internal predecessors, (530), 177 states have call successors, (177), 8 states have call predecessors, (177), 8 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-12-16 02:51:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 884 transitions. [2023-12-16 02:51:56,728 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 884 transitions. Word has length 375 [2023-12-16 02:51:56,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:51:56,729 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 884 transitions. [2023-12-16 02:51:56,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 02:51:56,729 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 884 transitions. [2023-12-16 02:51:56,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-12-16 02:51:56,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:51:56,731 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:56,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 02:51:56,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:56,938 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:51:56,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:51:56,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1108055241, now seen corresponding path program 1 times [2023-12-16 02:51:56,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:51:56,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904275833] [2023-12-16 02:51:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:56,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:51:56,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:51:56,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000106034] [2023-12-16 02:51:56,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:56,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:56,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:51:56,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:51:57,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 02:51:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:51:57,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 02:51:57,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:51:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-16 02:51:57,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:51:57,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:51:57,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904275833] [2023-12-16 02:51:57,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:51:57,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000106034] [2023-12-16 02:51:57,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000106034] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:51:57,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:51:57,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 02:51:57,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67326845] [2023-12-16 02:51:57,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:51:57,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 02:51:57,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:51:57,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 02:51:57,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:51:57,703 INFO L87 Difference]: Start difference. First operand 535 states and 884 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 02:51:58,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:51:58,020 INFO L93 Difference]: Finished difference Result 1251 states and 2059 transitions. [2023-12-16 02:51:58,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 02:51:58,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 376 [2023-12-16 02:51:58,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:51:58,025 INFO L225 Difference]: With dead ends: 1251 [2023-12-16 02:51:58,025 INFO L226 Difference]: Without dead ends: 901 [2023-12-16 02:51:58,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-16 02:51:58,027 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 434 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:51:58,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 986 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 02:51:58,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-12-16 02:51:58,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 883. [2023-12-16 02:51:58,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 574 states have (on average 1.5087108013937283) internal successors, (866), 574 states have internal predecessors, (866), 295 states have call successors, (295), 13 states have call predecessors, (295), 13 states have return successors, (295), 295 states have call predecessors, (295), 295 states have call successors, (295) [2023-12-16 02:51:58,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1456 transitions. [2023-12-16 02:51:58,125 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1456 transitions. Word has length 376 [2023-12-16 02:51:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:51:58,126 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1456 transitions. [2023-12-16 02:51:58,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-16 02:51:58,126 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1456 transitions. [2023-12-16 02:51:58,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-16 02:51:58,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:51:58,128 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:58,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 02:51:58,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:58,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:51:58,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:51:58,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1693262443, now seen corresponding path program 1 times [2023-12-16 02:51:58,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:51:58,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100140383] [2023-12-16 02:51:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:51:58,374 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:51:58,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806167259] [2023-12-16 02:51:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:51:58,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:51:58,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:51:58,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:51:58,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 02:51:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:51:58,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 02:51:58,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:51:59,437 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 2290 proven. 138 refuted. 0 times theorem prover too weak. 4416 trivial. 0 not checked. [2023-12-16 02:51:59,437 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:52:00,081 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 36 proven. 138 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-16 02:52:00,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:52:00,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100140383] [2023-12-16 02:52:00,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:52:00,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806167259] [2023-12-16 02:52:00,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806167259] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:52:00,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:52:00,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-16 02:52:00,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608139776] [2023-12-16 02:52:00,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 02:52:00,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 02:52:00,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:52:00,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 02:52:00,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-16 02:52:00,083 INFO L87 Difference]: Start difference. First operand 883 states and 1456 transitions. Second operand has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (118), 4 states have call predecessors, (118), 4 states have call successors, (118) [2023-12-16 02:52:01,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:52:01,765 INFO L93 Difference]: Finished difference Result 2727 states and 4361 transitions. [2023-12-16 02:52:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-16 02:52:01,766 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (118), 4 states have call predecessors, (118), 4 states have call successors, (118) Word has length 377 [2023-12-16 02:52:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:52:01,790 INFO L225 Difference]: With dead ends: 2727 [2023-12-16 02:52:01,790 INFO L226 Difference]: Without dead ends: 2029 [2023-12-16 02:52:01,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 743 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2023-12-16 02:52:01,793 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 1975 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:52:01,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 2271 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 02:52:01,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2023-12-16 02:52:02,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 1159. [2023-12-16 02:52:02,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 763 states have (on average 1.4403669724770642) internal successors, (1099), 769 states have internal predecessors, (1099), 369 states have call successors, (369), 26 states have call predecessors, (369), 26 states have return successors, (369), 363 states have call predecessors, (369), 369 states have call successors, (369) [2023-12-16 02:52:02,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1837 transitions. [2023-12-16 02:52:02,052 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1837 transitions. Word has length 377 [2023-12-16 02:52:02,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:52:02,053 INFO L495 AbstractCegarLoop]: Abstraction has 1159 states and 1837 transitions. [2023-12-16 02:52:02,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (118), 4 states have call predecessors, (118), 4 states have call successors, (118) [2023-12-16 02:52:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1837 transitions. [2023-12-16 02:52:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-16 02:52:02,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:52:02,058 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:02,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 02:52:02,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:02,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:52:02,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:52:02,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1636004141, now seen corresponding path program 1 times [2023-12-16 02:52:02,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:52:02,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47722599] [2023-12-16 02:52:02,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:02,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:52:02,305 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:52:02,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756413188] [2023-12-16 02:52:02,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:02,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:02,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:52:02,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:52:02,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 02:52:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:52:02,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-16 02:52:02,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:52:03,899 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 4617 proven. 345 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2023-12-16 02:52:03,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:52:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 186 proven. 159 refuted. 0 times theorem prover too weak. 6499 trivial. 0 not checked. [2023-12-16 02:52:04,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:52:04,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47722599] [2023-12-16 02:52:04,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:52:04,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756413188] [2023-12-16 02:52:04,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756413188] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:52:04,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:52:04,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9] total 22 [2023-12-16 02:52:04,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363932522] [2023-12-16 02:52:04,920 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 02:52:04,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-16 02:52:04,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:52:04,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-16 02:52:04,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-12-16 02:52:04,922 INFO L87 Difference]: Start difference. First operand 1159 states and 1837 transitions. Second operand has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 7 states have call successors, (96), 5 states have call predecessors, (96), 10 states have return successors, (97), 7 states have call predecessors, (97), 7 states have call successors, (97) [2023-12-16 02:52:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:52:06,596 INFO L93 Difference]: Finished difference Result 2358 states and 3605 transitions. [2023-12-16 02:52:06,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-16 02:52:06,601 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 7 states have call successors, (96), 5 states have call predecessors, (96), 10 states have return successors, (97), 7 states have call predecessors, (97), 7 states have call successors, (97) Word has length 377 [2023-12-16 02:52:06,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:52:06,609 INFO L225 Difference]: With dead ends: 2358 [2023-12-16 02:52:06,609 INFO L226 Difference]: Without dead ends: 1339 [2023-12-16 02:52:06,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 733 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=533, Invalid=1359, Unknown=0, NotChecked=0, Total=1892 [2023-12-16 02:52:06,613 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 726 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:52:06,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 989 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 02:52:06,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2023-12-16 02:52:06,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1279. [2023-12-16 02:52:06,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 853 states have (on average 1.381008206330598) internal successors, (1178), 859 states have internal predecessors, (1178), 369 states have call successors, (369), 56 states have call predecessors, (369), 56 states have return successors, (369), 363 states have call predecessors, (369), 369 states have call successors, (369) [2023-12-16 02:52:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1916 transitions. [2023-12-16 02:52:06,735 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1916 transitions. Word has length 377 [2023-12-16 02:52:06,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:52:06,735 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1916 transitions. [2023-12-16 02:52:06,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 7 states have call successors, (96), 5 states have call predecessors, (96), 10 states have return successors, (97), 7 states have call predecessors, (97), 7 states have call successors, (97) [2023-12-16 02:52:06,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1916 transitions. [2023-12-16 02:52:06,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-16 02:52:06,737 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:52:06,737 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:06,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 02:52:06,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:06,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:52:06,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:52:06,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1294454828, now seen corresponding path program 1 times [2023-12-16 02:52:06,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:52:06,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968221090] [2023-12-16 02:52:06,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:06,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:52:06,997 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:52:06,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1695628184] [2023-12-16 02:52:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:52:06,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:52:06,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:52:07,003 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:52:07,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 02:53:03,644 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 02:53:03,675 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:53:04,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:04,875 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2023-12-16 02:53:04,881 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 02:53:04,883 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:53:04,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2023-12-16 02:53:04,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-16 02:53:04,894 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 379 with TraceHistMax 59,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-16 02:53:04,897 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:04,899 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:53:04,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:53:04 BoogieIcfgContainer [2023-12-16 02:53:04,909 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:53:04,910 INFO L158 Benchmark]: Toolchain (without parser) took 75569.23ms. Allocated memory was 186.6MB in the beginning and 398.5MB in the end (delta: 211.8MB). Free memory was 142.8MB in the beginning and 314.4MB in the end (delta: -171.6MB). Peak memory consumption was 41.2MB. Max. memory is 8.0GB. [2023-12-16 02:53:04,910 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 155.2MB. Free memory was 100.4MB in the beginning and 100.3MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:53:04,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.69ms. Allocated memory is still 186.6MB. Free memory was 142.8MB in the beginning and 119.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 02:53:04,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.37ms. Allocated memory is still 186.6MB. Free memory was 119.7MB in the beginning and 112.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 02:53:04,911 INFO L158 Benchmark]: Boogie Preprocessor took 63.83ms. Allocated memory is still 186.6MB. Free memory was 112.4MB in the beginning and 102.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-16 02:53:04,911 INFO L158 Benchmark]: RCFGBuilder took 720.63ms. Allocated memory is still 186.6MB. Free memory was 102.4MB in the beginning and 123.0MB in the end (delta: -20.6MB). Peak memory consumption was 38.2MB. Max. memory is 8.0GB. [2023-12-16 02:53:04,911 INFO L158 Benchmark]: TraceAbstraction took 74319.60ms. Allocated memory was 186.6MB in the beginning and 398.5MB in the end (delta: 211.8MB). Free memory was 121.9MB in the beginning and 314.4MB in the end (delta: -192.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 02:53:04,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 155.2MB. Free memory was 100.4MB in the beginning and 100.3MB in the end (delta: 136.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 385.69ms. Allocated memory is still 186.6MB. Free memory was 142.8MB in the beginning and 119.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 75.37ms. Allocated memory is still 186.6MB. Free memory was 119.7MB in the beginning and 112.4MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 63.83ms. Allocated memory is still 186.6MB. Free memory was 112.4MB in the beginning and 102.4MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 720.63ms. Allocated memory is still 186.6MB. Free memory was 102.4MB in the beginning and 123.0MB in the end (delta: -20.6MB). Peak memory consumption was 38.2MB. Max. memory is 8.0GB. * TraceAbstraction took 74319.60ms. Allocated memory was 186.6MB in the beginning and 398.5MB in the end (delta: 211.8MB). Free memory was 121.9MB in the beginning and 314.4MB in the end (delta: -192.5MB). Peak memory consumption was 19.9MB. 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 379 with TraceHistMax 59,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 173 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.3s, OverallIterations: 8, TraceHistogramMax: 59, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4598 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4471 mSDsluCounter, 7157 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5259 mSDsCounter, 2077 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3930 IncrementalHoareTripleChecker+Invalid, 6007 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2077 mSolverCounterUnsat, 1898 mSDtfsCounter, 3930 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4179 GetRequests, 4065 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1279occurred in iteration=7, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 1091 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 2998 NumberOfCodeBlocks, 2998 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 4115 ConstructedInterpolants, 0 QuantifiedInterpolants, 18972 SizeOfPredicates, 31 NumberOfNonLiveVariables, 6033 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 74210/75284 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