/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-43.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 19:28:49,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 19:28:49,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 19:28:49,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 19:28:49,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 19:28:49,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 19:28:49,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 19:28:49,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 19:28:49,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 19:28:49,952 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 19:28:49,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 19:28:49,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 19:28:49,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 19:28:49,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 19:28:49,954 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 19:28:49,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 19:28:49,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 19:28:49,954 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 19:28:49,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 19:28:49,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 19:28:49,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 19:28:49,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 19:28:49,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 19:28:49,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 19:28:49,956 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 19:28:49,956 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 19:28:49,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 19:28:49,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 19:28:49,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 19:28:49,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 19:28:49,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 19:28:49,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 19:28:49,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:28:49,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 19:28:49,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 19:28:49,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 19:28:49,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 19:28:49,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 19:28:49,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 19:28:49,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 19:28:49,959 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 19:28:49,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 19:28:49,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 19:28:49,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 19:28:50,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 19:28:50,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 19:28:50,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 19:28:50,125 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 19:28:50,125 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 19:28:50,126 INFO L431 ainManager$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-43.i [2023-12-20 19:28:51,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 19:28:51,388 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 19:28:51,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-43.i [2023-12-20 19:28:51,396 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb756343/a2bce8543fcc489e83a4fb7fe2a0a529/FLAG777fcab97 [2023-12-20 19:28:51,412 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb756343/a2bce8543fcc489e83a4fb7fe2a0a529 [2023-12-20 19:28:51,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 19:28:51,415 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 19:28:51,416 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 19:28:51,416 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 19:28:51,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 19:28:51,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c49974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51, skipping insertion in model container [2023-12-20 19:28:51,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 19:28:51,594 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-43.i[916,929] [2023-12-20 19:28:51,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:28:51,732 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 19:28:51,743 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-43.i[916,929] [2023-12-20 19:28:51,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:28:51,831 INFO L206 MainTranslator]: Completed translation [2023-12-20 19:28:51,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51 WrapperNode [2023-12-20 19:28:51,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 19:28:51,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 19:28:51,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 19:28:51,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 19:28:51,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,920 INFO L138 Inliner]: procedures = 26, calls = 94, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 504 [2023-12-20 19:28:51,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 19:28:51,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 19:28:51,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 19:28:51,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 19:28:51,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,942 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,986 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]. [2023-12-20 19:28:51,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:51,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:52,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:52,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:52,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:52,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:52,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 19:28:52,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 19:28:52,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 19:28:52,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 19:28:52,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (1/1) ... [2023-12-20 19:28:52,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:28:52,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:28:52,106 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) [2023-12-20 19:28:52,166 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 [2023-12-20 19:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 19:28:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 19:28:52,187 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 19:28:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 19:28:52,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 19:28:52,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 19:28:52,325 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 19:28:52,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 19:28:52,837 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 19:28:52,875 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 19:28:52,875 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 19:28:52,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:28:52 BoogieIcfgContainer [2023-12-20 19:28:52,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 19:28:52,878 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 19:28:52,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 19:28:52,880 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 19:28:52,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 07:28:51" (1/3) ... [2023-12-20 19:28:52,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592566cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:28:52, skipping insertion in model container [2023-12-20 19:28:52,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:28:51" (2/3) ... [2023-12-20 19:28:52,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592566cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:28:52, skipping insertion in model container [2023-12-20 19:28:52,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:28:52" (3/3) ... [2023-12-20 19:28:52,882 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-43.i [2023-12-20 19:28:52,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 19:28:52,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 19:28:52,940 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 19:28:52,946 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;@2fbade4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 19:28:52,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 19:28:52,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-20 19:28:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-20 19:28:53,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:28:53,006 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:28:53,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:28:53,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:28:53,013 INFO L85 PathProgramCache]: Analyzing trace with hash -933119030, now seen corresponding path program 1 times [2023-12-20 19:28:53,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:28:53,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944503863] [2023-12-20 19:28:53,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:53,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:28:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:28:53,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:28:53,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944503863] [2023-12-20 19:28:53,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 19:28:53,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704815592] [2023-12-20 19:28:53,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:53,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:28:53,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:28:53,260 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) [2023-12-20 19:28:53,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 19:28:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:28:53,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 19:28:53,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:28:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 12800 trivial. 0 not checked. [2023-12-20 19:28:53,637 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:28:53,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704815592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:28:53,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:28:53,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 19:28:53,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79281448] [2023-12-20 19:28:53,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:28:53,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 19:28:53,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:28:53,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 19:28:53,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 19:28:53,675 INFO L87 Difference]: Start difference. First operand has 203 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) Second operand has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) [2023-12-20 19:28:53,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:28:53,732 INFO L93 Difference]: Finished difference Result 403 states and 763 transitions. [2023-12-20 19:28:53,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 19:28:53,734 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) Word has length 501 [2023-12-20 19:28:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:28:53,741 INFO L225 Difference]: With dead ends: 403 [2023-12-20 19:28:53,741 INFO L226 Difference]: Without dead ends: 201 [2023-12-20 19:28:53,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 19:28:53,749 INFO L413 NwaCegarLoop]: 334 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, 334 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 [2023-12-20 19:28:53,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:28:53,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-12-20 19:28:53,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2023-12-20 19:28:53,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 118 states have (on average 1.4830508474576272) internal successors, (175), 118 states have internal predecessors, (175), 81 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-20 19:28:53,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 337 transitions. [2023-12-20 19:28:53,799 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 337 transitions. Word has length 501 [2023-12-20 19:28:53,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:28:53,799 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 337 transitions. [2023-12-20 19:28:53,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 2 states have call successors, (81) [2023-12-20 19:28:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 337 transitions. [2023-12-20 19:28:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-20 19:28:53,806 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:28:53,806 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:28:53,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 19:28:54,007 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 [2023-12-20 19:28:54,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:28:54,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:28:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash 322180368, now seen corresponding path program 1 times [2023-12-20 19:28:54,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:28:54,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788607787] [2023-12-20 19:28:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:54,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:28:54,121 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:28:54,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426113986] [2023-12-20 19:28:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:54,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:28:54,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:28:54,130 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) [2023-12-20 19:28:54,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 19:28:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:28:54,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 19:28:54,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:28:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2023-12-20 19:28:54,473 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:28:54,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:28:54,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788607787] [2023-12-20 19:28:54,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:28:54,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426113986] [2023-12-20 19:28:54,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426113986] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:28:54,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:28:54,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 19:28:54,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767567462] [2023-12-20 19:28:54,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:28:54,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 19:28:54,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:28:54,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 19:28:54,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:28:54,479 INFO L87 Difference]: Start difference. First operand 201 states and 337 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-20 19:28:54,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:28:54,553 INFO L93 Difference]: Finished difference Result 516 states and 856 transitions. [2023-12-20 19:28:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 19:28:54,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 501 [2023-12-20 19:28:54,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:28:54,560 INFO L225 Difference]: With dead ends: 516 [2023-12-20 19:28:54,563 INFO L226 Difference]: Without dead ends: 316 [2023-12-20 19:28:54,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:28:54,565 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 176 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:28:54,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 656 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:28:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-12-20 19:28:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 313. [2023-12-20 19:28:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 176 states have (on average 1.4090909090909092) internal successors, (248), 177 states have internal predecessors, (248), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 133 states have call predecessors, (134), 134 states have call successors, (134) [2023-12-20 19:28:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 516 transitions. [2023-12-20 19:28:54,598 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 516 transitions. Word has length 501 [2023-12-20 19:28:54,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:28:54,599 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 516 transitions. [2023-12-20 19:28:54,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-20 19:28:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 516 transitions. [2023-12-20 19:28:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-20 19:28:54,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:28:54,602 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:28:54,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 19:28:54,809 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 [2023-12-20 19:28:54,809 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:28:54,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:28:54,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1343248722, now seen corresponding path program 1 times [2023-12-20 19:28:54,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:28:54,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610313657] [2023-12-20 19:28:54,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:54,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:28:54,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:28:54,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544620972] [2023-12-20 19:28:54,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:54,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:28:54,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:28:54,874 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) [2023-12-20 19:28:54,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 19:28:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:28:55,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-20 19:28:55,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:28:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12960 trivial. 0 not checked. [2023-12-20 19:28:55,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:28:55,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:28:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610313657] [2023-12-20 19:28:55,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:28:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544620972] [2023-12-20 19:28:55,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544620972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:28:55,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:28:55,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 19:28:55,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097101373] [2023-12-20 19:28:55,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:28:55,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 19:28:55,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:28:55,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 19:28:55,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:28:55,135 INFO L87 Difference]: Start difference. First operand 313 states and 516 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-20 19:28:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:28:55,191 INFO L93 Difference]: Finished difference Result 823 states and 1358 transitions. [2023-12-20 19:28:55,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 19:28:55,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) Word has length 501 [2023-12-20 19:28:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:28:55,196 INFO L225 Difference]: With dead ends: 823 [2023-12-20 19:28:55,196 INFO L226 Difference]: Without dead ends: 511 [2023-12-20 19:28:55,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:28:55,198 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 195 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:28:55,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 733 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:28:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-12-20 19:28:55,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 507. [2023-12-20 19:28:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 302 states have (on average 1.4536423841059603) internal successors, (439), 305 states have internal predecessors, (439), 200 states have call successors, (200), 4 states have call predecessors, (200), 4 states have return successors, (200), 197 states have call predecessors, (200), 200 states have call successors, (200) [2023-12-20 19:28:55,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 839 transitions. [2023-12-20 19:28:55,259 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 839 transitions. Word has length 501 [2023-12-20 19:28:55,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:28:55,260 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 839 transitions. [2023-12-20 19:28:55,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (81), 1 states have call predecessors, (81), 1 states have return successors, (81), 1 states have call predecessors, (81), 1 states have call successors, (81) [2023-12-20 19:28:55,260 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 839 transitions. [2023-12-20 19:28:55,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-20 19:28:55,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:28:55,264 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:28:55,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 19:28:55,470 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 [2023-12-20 19:28:55,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:28:55,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:28:55,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1766895444, now seen corresponding path program 1 times [2023-12-20 19:28:55,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:28:55,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170503080] [2023-12-20 19:28:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:55,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:28:55,530 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:28:55,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953190859] [2023-12-20 19:28:55,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:55,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:28:55,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:28:55,546 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) [2023-12-20 19:28:55,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 19:28:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:28:55,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 19:28:55,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:28:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 4490 proven. 51 refuted. 0 times theorem prover too weak. 8419 trivial. 0 not checked. [2023-12-20 19:28:55,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:28:56,168 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 189 proven. 51 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2023-12-20 19:28:56,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:28:56,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170503080] [2023-12-20 19:28:56,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:28:56,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953190859] [2023-12-20 19:28:56,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953190859] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:28:56,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:28:56,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-20 19:28:56,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640965867] [2023-12-20 19:28:56,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:28:56,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 19:28:56,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:28:56,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 19:28:56,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 19:28:56,171 INFO L87 Difference]: Start difference. First operand 507 states and 839 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 2 states have call successors, (98), 2 states have call predecessors, (98), 4 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2023-12-20 19:28:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:28:56,521 INFO L93 Difference]: Finished difference Result 1025 states and 1688 transitions. [2023-12-20 19:28:56,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 19:28:56,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 2 states have call successors, (98), 2 states have call predecessors, (98), 4 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) Word has length 501 [2023-12-20 19:28:56,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:28:56,540 INFO L225 Difference]: With dead ends: 1025 [2023-12-20 19:28:56,540 INFO L226 Difference]: Without dead ends: 519 [2023-12-20 19:28:56,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 994 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-20 19:28:56,542 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 338 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 19:28:56,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 568 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 19:28:56,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-20 19:28:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 511. [2023-12-20 19:28:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 305 states have (on average 1.4426229508196722) internal successors, (440), 308 states have internal predecessors, (440), 200 states have call successors, (200), 5 states have call predecessors, (200), 5 states have return successors, (200), 197 states have call predecessors, (200), 200 states have call successors, (200) [2023-12-20 19:28:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 840 transitions. [2023-12-20 19:28:56,577 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 840 transitions. Word has length 501 [2023-12-20 19:28:56,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:28:56,579 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 840 transitions. [2023-12-20 19:28:56,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 7 states have internal predecessors, (108), 2 states have call successors, (98), 2 states have call predecessors, (98), 4 states have return successors, (99), 2 states have call predecessors, (99), 2 states have call successors, (99) [2023-12-20 19:28:56,579 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 840 transitions. [2023-12-20 19:28:56,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-20 19:28:56,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:28:56,583 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:28:56,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 19:28:56,789 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 [2023-12-20 19:28:56,790 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:28:56,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:28:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1632881938, now seen corresponding path program 1 times [2023-12-20 19:28:56,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:28:56,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727405075] [2023-12-20 19:28:56,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:56,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:28:56,831 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:28:56,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [573700489] [2023-12-20 19:28:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:56,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:28:56,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:28:56,833 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) [2023-12-20 19:28:56,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 19:28:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:28:57,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-20 19:28:57,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:28:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 5897 proven. 138 refuted. 0 times theorem prover too weak. 6925 trivial. 0 not checked. [2023-12-20 19:28:57,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:28:57,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 336 proven. 141 refuted. 0 times theorem prover too weak. 12483 trivial. 0 not checked. [2023-12-20 19:28:57,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:28:57,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727405075] [2023-12-20 19:28:57,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:28:57,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573700489] [2023-12-20 19:28:57,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573700489] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:28:57,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:28:57,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-12-20 19:28:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788985846] [2023-12-20 19:28:57,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:28:57,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 19:28:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:28:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 19:28:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-12-20 19:28:57,849 INFO L87 Difference]: Start difference. First operand 511 states and 840 transitions. Second operand has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 4 states have call successors, (106), 3 states have call predecessors, (106), 7 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) [2023-12-20 19:28:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:28:58,311 INFO L93 Difference]: Finished difference Result 1039 states and 1695 transitions. [2023-12-20 19:28:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 19:28:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 4 states have call successors, (106), 3 states have call predecessors, (106), 7 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) Word has length 501 [2023-12-20 19:28:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:28:58,315 INFO L225 Difference]: With dead ends: 1039 [2023-12-20 19:28:58,315 INFO L226 Difference]: Without dead ends: 529 [2023-12-20 19:28:58,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1009 GetRequests, 989 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2023-12-20 19:28:58,317 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 204 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 19:28:58,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 551 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 19:28:58,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2023-12-20 19:28:58,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 519. [2023-12-20 19:28:58,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 311 states have (on average 1.427652733118971) internal successors, (444), 314 states have internal predecessors, (444), 200 states have call successors, (200), 7 states have call predecessors, (200), 7 states have return successors, (200), 197 states have call predecessors, (200), 200 states have call successors, (200) [2023-12-20 19:28:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 844 transitions. [2023-12-20 19:28:58,356 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 844 transitions. Word has length 501 [2023-12-20 19:28:58,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:28:58,358 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 844 transitions. [2023-12-20 19:28:58,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.461538461538462) internal successors, (149), 13 states have internal predecessors, (149), 4 states have call successors, (106), 3 states have call predecessors, (106), 7 states have return successors, (107), 4 states have call predecessors, (107), 4 states have call successors, (107) [2023-12-20 19:28:58,358 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 844 transitions. [2023-12-20 19:28:58,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-20 19:28:58,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:28:58,361 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:28:58,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 19:28:58,567 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 [2023-12-20 19:28:58,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:28:58,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:28:58,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1655514192, now seen corresponding path program 1 times [2023-12-20 19:28:58,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:28:58,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812810695] [2023-12-20 19:28:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:58,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:28:58,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:28:58,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311181760] [2023-12-20 19:28:58,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:28:58,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:28:58,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:28:58,606 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) [2023-12-20 19:28:58,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 19:28:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:28:58,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-20 19:28:58,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:28:59,816 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 8368 proven. 273 refuted. 0 times theorem prover too weak. 4319 trivial. 0 not checked. [2023-12-20 19:28:59,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:29:00,641 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 651 proven. 291 refuted. 0 times theorem prover too weak. 12018 trivial. 0 not checked. [2023-12-20 19:29:00,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:29:00,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812810695] [2023-12-20 19:29:00,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:29:00,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311181760] [2023-12-20 19:29:00,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311181760] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:29:00,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:29:00,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-12-20 19:29:00,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430294925] [2023-12-20 19:29:00,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:29:00,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-20 19:29:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:29:00,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-20 19:29:00,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2023-12-20 19:29:00,647 INFO L87 Difference]: Start difference. First operand 519 states and 844 transitions. Second operand has 28 states, 27 states have (on average 6.62962962962963) internal successors, (179), 26 states have internal predecessors, (179), 9 states have call successors, (119), 5 states have call predecessors, (119), 12 states have return successors, (120), 9 states have call predecessors, (120), 9 states have call successors, (120) [2023-12-20 19:29:03,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:29:03,743 INFO L93 Difference]: Finished difference Result 2025 states and 3209 transitions. [2023-12-20 19:29:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-12-20 19:29:03,744 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.62962962962963) internal successors, (179), 26 states have internal predecessors, (179), 9 states have call successors, (119), 5 states have call predecessors, (119), 12 states have return successors, (120), 9 states have call predecessors, (120), 9 states have call successors, (120) Word has length 501 [2023-12-20 19:29:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:29:03,750 INFO L225 Difference]: With dead ends: 2025 [2023-12-20 19:29:03,751 INFO L226 Difference]: Without dead ends: 1507 [2023-12-20 19:29:03,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1055 GetRequests, 980 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1601 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1645, Invalid=4207, Unknown=0, NotChecked=0, Total=5852 [2023-12-20 19:29:03,754 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 1060 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 2899 mSolverCounterSat, 954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2337 SdHoareTripleChecker+Invalid, 3853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 954 IncrementalHoareTripleChecker+Valid, 2899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:29:03,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 2337 Invalid, 3853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [954 Valid, 2899 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-20 19:29:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2023-12-20 19:29:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1296. [2023-12-20 19:29:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 789 states have (on average 1.3954372623574145) internal successors, (1101), 797 states have internal predecessors, (1101), 474 states have call successors, (474), 32 states have call predecessors, (474), 32 states have return successors, (474), 466 states have call predecessors, (474), 474 states have call successors, (474) [2023-12-20 19:29:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 2049 transitions. [2023-12-20 19:29:03,848 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 2049 transitions. Word has length 501 [2023-12-20 19:29:03,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:29:03,848 INFO L495 AbstractCegarLoop]: Abstraction has 1296 states and 2049 transitions. [2023-12-20 19:29:03,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.62962962962963) internal successors, (179), 26 states have internal predecessors, (179), 9 states have call successors, (119), 5 states have call predecessors, (119), 12 states have return successors, (120), 9 states have call predecessors, (120), 9 states have call successors, (120) [2023-12-20 19:29:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 2049 transitions. [2023-12-20 19:29:03,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2023-12-20 19:29:03,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:29:03,852 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:29:03,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 19:29:04,059 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 [2023-12-20 19:29:04,059 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:29:04,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:29:04,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1930273806, now seen corresponding path program 1 times [2023-12-20 19:29:04,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:29:04,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377205020] [2023-12-20 19:29:04,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:29:04,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:29:04,108 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:29:04,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774330578] [2023-12-20 19:29:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:29:04,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:29:04,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:29:04,110 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) [2023-12-20 19:29:04,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 19:29:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:29:04,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 19:29:04,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:29:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 6548 proven. 114 refuted. 0 times theorem prover too weak. 6298 trivial. 0 not checked. [2023-12-20 19:29:05,124 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:29:05,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12960 backedges. 126 proven. 114 refuted. 0 times theorem prover too weak. 12720 trivial. 0 not checked. [2023-12-20 19:29:05,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:29:05,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377205020] [2023-12-20 19:29:05,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:29:05,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774330578] [2023-12-20 19:29:05,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774330578] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:29:05,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:29:05,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-12-20 19:29:05,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093720478] [2023-12-20 19:29:05,490 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:29:05,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 19:29:05,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:29:05,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 19:29:05,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-20 19:29:05,492 INFO L87 Difference]: Start difference. First operand 1296 states and 2049 transitions. Second operand has 10 states, 10 states have (on average 18.5) internal successors, (185), 10 states have internal predecessors, (185), 4 states have call successors, (162), 3 states have call predecessors, (162), 5 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) [2023-12-20 19:29:06,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:29:06,498 INFO L93 Difference]: Finished difference Result 3567 states and 5618 transitions. [2023-12-20 19:29:06,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 19:29:06,500 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.5) internal successors, (185), 10 states have internal predecessors, (185), 4 states have call successors, (162), 3 states have call predecessors, (162), 5 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) Word has length 501 [2023-12-20 19:29:06,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:29:06,513 INFO L225 Difference]: With dead ends: 3567 [2023-12-20 19:29:06,513 INFO L226 Difference]: Without dead ends: 2272 [2023-12-20 19:29:06,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 993 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2023-12-20 19:29:06,519 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 1065 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 863 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 19:29:06,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 878 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 863 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 19:29:06,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2023-12-20 19:29:06,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2027. [2023-12-20 19:29:06,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2027 states, 1228 states have (on average 1.3933224755700326) internal successors, (1711), 1241 states have internal predecessors, (1711), 748 states have call successors, (748), 50 states have call predecessors, (748), 50 states have return successors, (748), 735 states have call predecessors, (748), 748 states have call successors, (748) [2023-12-20 19:29:06,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 3207 transitions. [2023-12-20 19:29:06,823 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 3207 transitions. Word has length 501 [2023-12-20 19:29:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:29:06,824 INFO L495 AbstractCegarLoop]: Abstraction has 2027 states and 3207 transitions. [2023-12-20 19:29:06,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.5) internal successors, (185), 10 states have internal predecessors, (185), 4 states have call successors, (162), 3 states have call predecessors, (162), 5 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) [2023-12-20 19:29:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 3207 transitions. [2023-12-20 19:29:06,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2023-12-20 19:29:06,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:29:06,828 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:29:06,855 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-20 19:29:07,036 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 [2023-12-20 19:29:07,037 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:29:07,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:29:07,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1834743866, now seen corresponding path program 1 times [2023-12-20 19:29:07,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:29:07,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862704129] [2023-12-20 19:29:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:29:07,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:29:07,089 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:29:07,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929873762] [2023-12-20 19:29:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:29:07,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:29:07,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:29:07,106 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) [2023-12-20 19:29:07,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 19:29:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-20 19:29:33,290 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. Received shutdown request... [2023-12-20 19:43:33,934 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 [2023-12-20 19:43:33,946 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 [2023-12-20 19:43:34,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-20 19:43:35,135 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2023-12-20 19:43:35,157 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-20 19:43:35,158 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 19:43:35,158 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 [2023-12-20 19:43:35,159 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 503 with TraceHistMax 81,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-20 19:43:35,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2023-12-20 19:43:35,162 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:43:35,163 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 19:43:35,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 07:43:35 BoogieIcfgContainer [2023-12-20 19:43:35,165 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 19:43:35,165 INFO L158 Benchmark]: Toolchain (without parser) took 883749.94ms. Allocated memory was 292.6MB in the beginning and 539.0MB in the end (delta: 246.4MB). Free memory was 249.2MB in the beginning and 276.2MB in the end (delta: -27.0MB). Peak memory consumption was 219.9MB. Max. memory is 8.0GB. [2023-12-20 19:43:35,165 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 19:43:35,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.45ms. Allocated memory is still 292.6MB. Free memory was 249.2MB in the beginning and 225.6MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-20 19:43:35,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.74ms. Allocated memory is still 292.6MB. Free memory was 225.6MB in the beginning and 219.3MB in the end (delta: 6.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 19:43:35,166 INFO L158 Benchmark]: Boogie Preprocessor took 134.82ms. Allocated memory is still 292.6MB. Free memory was 219.3MB in the beginning and 212.0MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-20 19:43:35,166 INFO L158 Benchmark]: RCFGBuilder took 811.21ms. Allocated memory is still 292.6MB. Free memory was 212.0MB in the beginning and 163.2MB in the end (delta: 48.8MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. [2023-12-20 19:43:35,166 INFO L158 Benchmark]: TraceAbstraction took 882287.00ms. Allocated memory was 292.6MB in the beginning and 539.0MB in the end (delta: 246.4MB). Free memory was 162.7MB in the beginning and 276.2MB in the end (delta: -113.5MB). Peak memory consumption was 134.0MB. Max. memory is 8.0GB. [2023-12-20 19:43:35,167 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 201.3MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 415.45ms. Allocated memory is still 292.6MB. Free memory was 249.2MB in the beginning and 225.6MB in the end (delta: 23.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 89.74ms. Allocated memory is still 292.6MB. Free memory was 225.6MB in the beginning and 219.3MB in the end (delta: 6.3MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 134.82ms. Allocated memory is still 292.6MB. Free memory was 219.3MB in the beginning and 212.0MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 811.21ms. Allocated memory is still 292.6MB. Free memory was 212.0MB in the beginning and 163.2MB in the end (delta: 48.8MB). Peak memory consumption was 49.3MB. Max. memory is 8.0GB. * TraceAbstraction took 882287.00ms. Allocated memory was 292.6MB in the beginning and 539.0MB in the end (delta: 246.4MB). Free memory was 162.7MB in the beginning and 276.2MB in the end (delta: -113.5MB). Peak memory consumption was 134.0MB. 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 503 with TraceHistMax 81,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 203 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 882.2s, OverallIterations: 8, TraceHistogramMax: 81, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3318 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3038 mSDsluCounter, 6057 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3791 mSDsCounter, 1539 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4711 IncrementalHoareTripleChecker+Invalid, 6250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1539 mSolverCounterUnsat, 2266 mSDtfsCounter, 4711 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5575 GetRequests, 5454 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1710 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2027occurred in iteration=7, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 481 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 4008 NumberOfCodeBlocks, 4008 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 5500 ConstructedInterpolants, 0 QuantifiedInterpolants, 14326 SizeOfPredicates, 24 NumberOfNonLiveVariables, 7774 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 141387/142560 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