/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-86.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:53:22,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:53:22,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:53:22,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:53:22,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:53:22,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:53:22,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:53:22,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:53:22,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:53:22,591 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:53:22,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:53:22,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:53:22,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:53:22,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:53:22,594 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:53:22,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:53:22,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:53:22,595 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:53:22,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:53:22,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:53:22,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:53:22,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:53:22,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:53:22,597 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:53:22,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:53:22,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:53:22,598 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:53:22,598 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:53:22,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:53:22,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:53:22,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:53:22,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:53:22,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:53:22,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:53:22,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:53:22,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:53:22,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:53:22,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:53:22,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:53:22,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:53:22,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:53:22,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:53:22,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:53:22,601 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:53:22,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:53:22,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:53:22,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:53:22,877 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:53:22,878 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:53:22,879 INFO L431 ainManager$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-86.i [2023-12-16 02:53:24,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:53:24,433 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:53:24,433 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-86.i [2023-12-16 02:53:24,442 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c370677c/d295bc10a41d479a8874ecc9174bd5c4/FLAG107c2ee7b [2023-12-16 02:53:24,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c370677c/d295bc10a41d479a8874ecc9174bd5c4 [2023-12-16 02:53:24,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:53:24,461 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:53:24,463 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:53:24,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:53:24,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:53:24,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:24,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df0e54f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24, skipping insertion in model container [2023-12-16 02:53:24,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:24,520 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:53:24,637 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-86.i[916,929] [2023-12-16 02:53:24,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:53:24,783 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:53:24,793 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-86.i[916,929] [2023-12-16 02:53:24,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:53:24,860 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:53:24,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24 WrapperNode [2023-12-16 02:53:24,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:53:24,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:53:24,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:53:24,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:53:24,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:24,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:24,983 INFO L138 Inliner]: procedures = 26, calls = 82, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 480 [2023-12-16 02:53:24,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:53:24,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:53:24,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:53:24,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:53:24,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:24,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,065 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 02:53:25,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,087 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:53:25,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:53:25,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:53:25,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:53:25,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (1/1) ... [2023-12-16 02:53:25,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:53:25,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:25,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 02:53:25,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 02:53:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:53:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 02:53:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 02:53:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:53:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:53:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:53:25,289 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:53:25,291 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:53:26,036 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:53:26,099 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:53:26,099 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:53:26,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:53:26 BoogieIcfgContainer [2023-12-16 02:53:26,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:53:26,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:53:26,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:53:26,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:53:26,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:53:24" (1/3) ... [2023-12-16 02:53:26,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723c7500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:53:26, skipping insertion in model container [2023-12-16 02:53:26,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:53:24" (2/3) ... [2023-12-16 02:53:26,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@723c7500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:53:26, skipping insertion in model container [2023-12-16 02:53:26,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:53:26" (3/3) ... [2023-12-16 02:53:26,109 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-86.i [2023-12-16 02:53:26,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:53:26,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:53:26,169 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:53:26,175 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;@1174af5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:53:26,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:53:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 190 states, 118 states have (on average 1.5508474576271187) internal successors, (183), 119 states have internal predecessors, (183), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 02:53:26,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-16 02:53:26,202 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:53:26,203 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:26,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:53:26,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:53:26,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1301551634, now seen corresponding path program 1 times [2023-12-16 02:53:26,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:53:26,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702955598] [2023-12-16 02:53:26,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:26,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:53:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:26,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:53:26,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702955598] [2023-12-16 02:53:26,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 02:53:26,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607437357] [2023-12-16 02:53:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:26,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:26,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:26,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:53:26,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 02:53:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:26,835 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 02:53:26,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:53:26,980 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 9248 trivial. 0 not checked. [2023-12-16 02:53:26,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:53:26,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607437357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:53:26,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:53:26,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:53:26,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530996547] [2023-12-16 02:53:26,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:53:26,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:53:26,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:53:27,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:53:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:53:27,018 INFO L87 Difference]: Start difference. First operand has 190 states, 118 states have (on average 1.5508474576271187) internal successors, (183), 119 states have internal predecessors, (183), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Second operand has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 02:53:27,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:53:27,077 INFO L93 Difference]: Finished difference Result 376 states and 707 transitions. [2023-12-16 02:53:27,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:53:27,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 2 states have call successors, (69) Word has length 435 [2023-12-16 02:53:27,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:53:27,089 INFO L225 Difference]: With dead ends: 376 [2023-12-16 02:53:27,089 INFO L226 Difference]: Without dead ends: 187 [2023-12-16 02:53:27,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:53:27,096 INFO L413 NwaCegarLoop]: 310 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, 310 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:53:27,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 310 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:53:27,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-16 02:53:27,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-12-16 02:53:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 116 states have internal predecessors, (175), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 02:53:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 313 transitions. [2023-12-16 02:53:27,209 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 313 transitions. Word has length 435 [2023-12-16 02:53:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:53:27,210 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 313 transitions. [2023-12-16 02:53:27,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 02:53:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 313 transitions. [2023-12-16 02:53:27,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-16 02:53:27,249 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:53:27,249 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:27,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:27,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 02:53:27,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:53:27,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:53:27,459 INFO L85 PathProgramCache]: Analyzing trace with hash 262045416, now seen corresponding path program 1 times [2023-12-16 02:53:27,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:53:27,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326520466] [2023-12-16 02:53:27,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:27,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:53:27,629 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:53:27,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088791106] [2023-12-16 02:53:27,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:27,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:27,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:27,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:53:27,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 02:53:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:27,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:53:27,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:53:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2023-12-16 02:53:28,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:53:28,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:53:28,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326520466] [2023-12-16 02:53:28,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:53:28,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088791106] [2023-12-16 02:53:28,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088791106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:53:28,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:53:28,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:53:28,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731858594] [2023-12-16 02:53:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:53:28,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:53:28,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:53:28,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:53:28,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:53:28,039 INFO L87 Difference]: Start difference. First operand 187 states and 313 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:53:28,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:53:28,134 INFO L93 Difference]: Finished difference Result 473 states and 795 transitions. [2023-12-16 02:53:28,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:53:28,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) Word has length 435 [2023-12-16 02:53:28,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:53:28,144 INFO L225 Difference]: With dead ends: 473 [2023-12-16 02:53:28,144 INFO L226 Difference]: Without dead ends: 287 [2023-12-16 02:53:28,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:53:28,164 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 162 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:53:28,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 747 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:53:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-12-16 02:53:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 284. [2023-12-16 02:53:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 197 states have (on average 1.5786802030456852) internal successors, (311), 198 states have internal predecessors, (311), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 83 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-16 02:53:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 479 transitions. [2023-12-16 02:53:28,239 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 479 transitions. Word has length 435 [2023-12-16 02:53:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:53:28,259 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 479 transitions. [2023-12-16 02:53:28,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:53:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 479 transitions. [2023-12-16 02:53:28,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-16 02:53:28,266 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:53:28,267 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:28,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:28,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 02:53:28,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:53:28,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:53:28,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1766540694, now seen corresponding path program 1 times [2023-12-16 02:53:28,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:53:28,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086689768] [2023-12-16 02:53:28,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:28,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:53:28,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:53:28,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687776120] [2023-12-16 02:53:28,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:28,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:28,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:28,652 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:53:28,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 02:53:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:28,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 02:53:28,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:53:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2023-12-16 02:53:29,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:53:29,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:53:29,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086689768] [2023-12-16 02:53:29,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:53:29,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687776120] [2023-12-16 02:53:29,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687776120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:53:29,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:53:29,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:53:29,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128637275] [2023-12-16 02:53:29,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:53:29,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:53:29,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:53:29,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:53:29,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:53:29,040 INFO L87 Difference]: Start difference. First operand 284 states and 479 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:53:29,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:53:29,123 INFO L93 Difference]: Finished difference Result 844 states and 1423 transitions. [2023-12-16 02:53:29,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:53:29,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) Word has length 435 [2023-12-16 02:53:29,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:53:29,129 INFO L225 Difference]: With dead ends: 844 [2023-12-16 02:53:29,130 INFO L226 Difference]: Without dead ends: 561 [2023-12-16 02:53:29,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:53:29,132 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 284 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:53:29,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 826 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:53:29,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-12-16 02:53:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2023-12-16 02:53:29,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 386 states have (on average 1.544041450777202) internal successors, (596), 388 states have internal predecessors, (596), 168 states have call successors, (168), 4 states have call predecessors, (168), 4 states have return successors, (168), 166 states have call predecessors, (168), 168 states have call successors, (168) [2023-12-16 02:53:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 932 transitions. [2023-12-16 02:53:29,204 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 932 transitions. Word has length 435 [2023-12-16 02:53:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:53:29,209 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 932 transitions. [2023-12-16 02:53:29,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:53:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 932 transitions. [2023-12-16 02:53:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-16 02:53:29,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:53:29,214 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:29,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:29,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:29,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:53:29,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:53:29,423 INFO L85 PathProgramCache]: Analyzing trace with hash -748865042, now seen corresponding path program 1 times [2023-12-16 02:53:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:53:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191971821] [2023-12-16 02:53:29,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:29,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:53:29,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:53:29,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764040096] [2023-12-16 02:53:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:29,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:29,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:29,479 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:53:29,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 02:53:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:29,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 02:53:29,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:53:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2023-12-16 02:53:30,348 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:53:30,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:53:30,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191971821] [2023-12-16 02:53:30,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:53:30,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764040096] [2023-12-16 02:53:30,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764040096] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:53:30,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:53:30,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:53:30,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064386250] [2023-12-16 02:53:30,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:53:30,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 02:53:30,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:53:30,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 02:53:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:53:30,353 INFO L87 Difference]: Start difference. First operand 559 states and 932 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:53:30,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:53:30,680 INFO L93 Difference]: Finished difference Result 1474 states and 2463 transitions. [2023-12-16 02:53:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 02:53:30,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) Word has length 435 [2023-12-16 02:53:30,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:53:30,687 INFO L225 Difference]: With dead ends: 1474 [2023-12-16 02:53:30,687 INFO L226 Difference]: Without dead ends: 916 [2023-12-16 02:53:30,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 02:53:30,690 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 282 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:53:30,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1066 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 02:53:30,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2023-12-16 02:53:30,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 846. [2023-12-16 02:53:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 603 states have (on average 1.5671641791044777) internal successors, (945), 605 states have internal predecessors, (945), 237 states have call successors, (237), 5 states have call predecessors, (237), 5 states have return successors, (237), 235 states have call predecessors, (237), 237 states have call successors, (237) [2023-12-16 02:53:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1419 transitions. [2023-12-16 02:53:30,763 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1419 transitions. Word has length 435 [2023-12-16 02:53:30,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:53:30,764 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1419 transitions. [2023-12-16 02:53:30,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 02:53:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1419 transitions. [2023-12-16 02:53:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-16 02:53:30,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:53:30,768 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:30,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:30,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:30,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:53:30,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:53:30,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1335671056, now seen corresponding path program 1 times [2023-12-16 02:53:30,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:53:30,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288930167] [2023-12-16 02:53:30,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:30,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:53:31,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:53:31,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668868882] [2023-12-16 02:53:31,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:31,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:31,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:31,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:53:31,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 02:53:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:31,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 02:53:31,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:53:31,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 4380 proven. 72 refuted. 0 times theorem prover too weak. 4932 trivial. 0 not checked. [2023-12-16 02:53:31,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:53:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 132 proven. 72 refuted. 0 times theorem prover too weak. 9180 trivial. 0 not checked. [2023-12-16 02:53:32,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:53:32,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288930167] [2023-12-16 02:53:32,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 02:53:32,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668868882] [2023-12-16 02:53:32,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668868882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 02:53:32,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:53:32,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2023-12-16 02:53:32,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595675990] [2023-12-16 02:53:32,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 02:53:32,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 02:53:32,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:53:32,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 02:53:32,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-16 02:53:32,056 INFO L87 Difference]: Start difference. First operand 846 states and 1419 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 2 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2023-12-16 02:53:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:53:33,315 INFO L93 Difference]: Finished difference Result 1219 states and 2037 transitions. [2023-12-16 02:53:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 02:53:33,316 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 2 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 435 [2023-12-16 02:53:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:53:33,320 INFO L225 Difference]: With dead ends: 1219 [2023-12-16 02:53:33,320 INFO L226 Difference]: Without dead ends: 531 [2023-12-16 02:53:33,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 883 GetRequests, 860 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=368, Unknown=0, NotChecked=0, Total=552 [2023-12-16 02:53:33,336 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 509 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 02:53:33,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 754 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 02:53:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2023-12-16 02:53:33,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 523. [2023-12-16 02:53:33,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 362 states have (on average 1.4696132596685083) internal successors, (532), 363 states have internal predecessors, (532), 153 states have call successors, (153), 7 states have call predecessors, (153), 7 states have return successors, (153), 152 states have call predecessors, (153), 153 states have call successors, (153) [2023-12-16 02:53:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 838 transitions. [2023-12-16 02:53:33,381 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 838 transitions. Word has length 435 [2023-12-16 02:53:33,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:53:33,383 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 838 transitions. [2023-12-16 02:53:33,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 2 states have call successors, (93), 2 states have call predecessors, (93), 4 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2023-12-16 02:53:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 838 transitions. [2023-12-16 02:53:33,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2023-12-16 02:53:33,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:53:33,386 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:53:33,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 02:53:33,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:33,593 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:53:33,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:53:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash 898482437, now seen corresponding path program 1 times [2023-12-16 02:53:33,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:53:33,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769892805] [2023-12-16 02:53:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:33,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:53:33,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 02:53:33,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1034810089] [2023-12-16 02:53:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:53:33,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:53:33,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:53:33,652 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 02:53:33,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 02:53:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:53:34,139 INFO L262 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-16 02:53:34,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 02:54:30,893 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:54:30,893 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 02:54:30,936 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:54:30,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 02:54:31,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:54:31,147 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 438 with TraceHistMax 69,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-63-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-2-3-2-2-2-2-2-3-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 context. [2023-12-16 02:54:31,151 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 02:54:31,153 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:54:31,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:54:31 BoogieIcfgContainer [2023-12-16 02:54:31,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:54:31,156 INFO L158 Benchmark]: Toolchain (without parser) took 66694.62ms. Allocated memory was 189.8MB in the beginning and 833.6MB in the end (delta: 643.8MB). Free memory was 135.2MB in the beginning and 616.5MB in the end (delta: -481.3MB). Peak memory consumption was 503.5MB. Max. memory is 8.0GB. [2023-12-16 02:54:31,156 INFO L158 Benchmark]: CDTParser took 0.66ms. Allocated memory is still 189.8MB. Free memory was 143.3MB in the beginning and 143.2MB in the end (delta: 132.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:54:31,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.11ms. Allocated memory is still 189.8MB. Free memory was 134.9MB in the beginning and 111.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-16 02:54:31,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.45ms. Allocated memory was 189.8MB in the beginning and 255.9MB in the end (delta: 66.1MB). Free memory was 111.8MB in the beginning and 223.1MB in the end (delta: -111.3MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. [2023-12-16 02:54:31,157 INFO L158 Benchmark]: Boogie Preprocessor took 115.79ms. Allocated memory is still 255.9MB. Free memory was 223.1MB in the beginning and 211.5MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-12-16 02:54:31,157 INFO L158 Benchmark]: RCFGBuilder took 998.68ms. Allocated memory is still 255.9MB. Free memory was 211.5MB in the beginning and 156.0MB in the end (delta: 55.5MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. [2023-12-16 02:54:31,157 INFO L158 Benchmark]: TraceAbstraction took 65054.01ms. Allocated memory was 255.9MB in the beginning and 833.6MB in the end (delta: 577.8MB). Free memory was 155.5MB in the beginning and 616.5MB in the end (delta: -461.0MB). Peak memory consumption was 457.1MB. Max. memory is 8.0GB. [2023-12-16 02:54:31,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66ms. Allocated memory is still 189.8MB. Free memory was 143.3MB in the beginning and 143.2MB in the end (delta: 132.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 397.11ms. Allocated memory is still 189.8MB. Free memory was 134.9MB in the beginning and 111.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 122.45ms. Allocated memory was 189.8MB in the beginning and 255.9MB in the end (delta: 66.1MB). Free memory was 111.8MB in the beginning and 223.1MB in the end (delta: -111.3MB). Peak memory consumption was 13.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 115.79ms. Allocated memory is still 255.9MB. Free memory was 223.1MB in the beginning and 211.5MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * RCFGBuilder took 998.68ms. Allocated memory is still 255.9MB. Free memory was 211.5MB in the beginning and 156.0MB in the end (delta: 55.5MB). Peak memory consumption was 55.6MB. Max. memory is 8.0GB. * TraceAbstraction took 65054.01ms. Allocated memory was 255.9MB in the beginning and 833.6MB in the end (delta: 577.8MB). Free memory was 155.5MB in the beginning and 616.5MB in the end (delta: -461.0MB). Peak memory consumption was 457.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 438 with TraceHistMax 69,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-63-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-2-3-2-2-2-2-2-3-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 190 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 65.0s, OverallIterations: 6, TraceHistogramMax: 69, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1282 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1237 mSDsluCounter, 3703 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1814 mSDsCounter, 457 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1058 IncrementalHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 457 mSolverCounterUnsat, 1889 mSDtfsCounter, 1058 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2621 GetRequests, 2591 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=846occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 83 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2610 NumberOfCodeBlocks, 2610 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 2604 ConstructedInterpolants, 0 QuantifiedInterpolants, 4502 SizeOfPredicates, 10 NumberOfNonLiveVariables, 5013 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 56160/56304 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