/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-100_file-97.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 19:14:36,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 19:14:36,920 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 19:14:36,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 19:14:36,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 19:14:36,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 19:14:36,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 19:14:36,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 19:14:36,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 19:14:36,947 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 19:14:36,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 19:14:36,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 19:14:36,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 19:14:36,948 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 19:14:36,948 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 19:14:36,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 19:14:36,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 19:14:36,949 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 19:14:36,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 19:14:36,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 19:14:36,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 19:14:36,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 19:14:36,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 19:14:36,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 19:14:36,950 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 19:14:36,950 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 19:14:36,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 19:14:36,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 19:14:36,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 19:14:36,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 19:14:36,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 19:14:36,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 19:14:36,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:14:36,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 19:14:36,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 19:14:36,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 19:14:36,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 19:14:36,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 19:14:36,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 19:14:36,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 19:14:36,953 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 19:14:36,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 19:14:36,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 19:14:36,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 19:14:37,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 19:14:37,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 19:14:37,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 19:14:37,110 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 19:14:37,110 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 19:14:37,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-97.i [2023-12-20 19:14:38,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 19:14:38,234 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 19:14:38,235 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-97.i [2023-12-20 19:14:38,258 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310e49e4c/a0c59a91e8b04684837b0051fcf5735e/FLAG07fc8ab6f [2023-12-20 19:14:38,272 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/310e49e4c/a0c59a91e8b04684837b0051fcf5735e [2023-12-20 19:14:38,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 19:14:38,275 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 19:14:38,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 19:14:38,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 19:14:38,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 19:14:38,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70082b79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38, skipping insertion in model container [2023-12-20 19:14:38,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,313 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 19:14:38,406 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-100_file-97.i[916,929] [2023-12-20 19:14:38,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:14:38,470 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 19:14:38,477 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-100_file-97.i[916,929] [2023-12-20 19:14:38,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:14:38,514 INFO L206 MainTranslator]: Completed translation [2023-12-20 19:14:38,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38 WrapperNode [2023-12-20 19:14:38,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 19:14:38,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 19:14:38,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 19:14:38,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 19:14:38,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,627 INFO L138 Inliner]: procedures = 26, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 347 [2023-12-20 19:14:38,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 19:14:38,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 19:14:38,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 19:14:38,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 19:14:38,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,645 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,660 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 19:14:38,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 19:14:38,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 19:14:38,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 19:14:38,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 19:14:38,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (1/1) ... [2023-12-20 19:14:38,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:14:38,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:14:38,745 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 19:14:38,750 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 19:14:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 19:14:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 19:14:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 19:14:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 19:14:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 19:14:38,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 19:14:38,829 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 19:14:38,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 19:14:39,176 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 19:14:39,241 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 19:14:39,241 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 19:14:39,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:14:39 BoogieIcfgContainer [2023-12-20 19:14:39,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 19:14:39,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 19:14:39,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 19:14:39,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 19:14:39,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 07:14:38" (1/3) ... [2023-12-20 19:14:39,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415933a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:14:39, skipping insertion in model container [2023-12-20 19:14:39,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:14:38" (2/3) ... [2023-12-20 19:14:39,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415933a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:14:39, skipping insertion in model container [2023-12-20 19:14:39,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:14:39" (3/3) ... [2023-12-20 19:14:39,246 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-97.i [2023-12-20 19:14:39,258 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 19:14:39,258 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 19:14:39,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 19:14:39,303 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;@705e39e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 19:14:39,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 19:14:39,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 83 states have internal predecessors, (120), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-20 19:14:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-20 19:14:39,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:14:39,338 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:39,338 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:14:39,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:14:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash -638139496, now seen corresponding path program 1 times [2023-12-20 19:14:39,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:14:39,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863897088] [2023-12-20 19:14:39,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:39,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:14:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:14:39,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:14:39,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863897088] [2023-12-20 19:14:39,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 19:14:39,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960825597] [2023-12-20 19:14:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:39,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:14:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:14:39,576 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 19:14:39,609 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 19:14:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:14:39,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 19:14:39,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:14:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 6498 trivial. 0 not checked. [2023-12-20 19:14:39,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:14:39,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960825597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:14:39,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:14:39,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 19:14:39,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757485204] [2023-12-20 19:14:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:14:39,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 19:14:39,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:14:39,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 19:14:39,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 19:14:39,820 INFO L87 Difference]: Start difference. First operand has 143 states, 82 states have (on average 1.4634146341463414) internal successors, (120), 83 states have internal predecessors, (120), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-20 19:14:39,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:14:39,853 INFO L93 Difference]: Finished difference Result 283 states and 528 transitions. [2023-12-20 19:14:39,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 19:14:39,855 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 2 states have call successors, (58) Word has length 349 [2023-12-20 19:14:39,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:14:39,863 INFO L225 Difference]: With dead ends: 283 [2023-12-20 19:14:39,863 INFO L226 Difference]: Without dead ends: 141 [2023-12-20 19:14:39,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 348 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 19:14:39,872 INFO L413 NwaCegarLoop]: 228 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, 228 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 19:14:39,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:14:39,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-20 19:14:39,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-12-20 19:14:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 81 states have internal predecessors, (115), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-20 19:14:39,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 231 transitions. [2023-12-20 19:14:39,927 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 231 transitions. Word has length 349 [2023-12-20 19:14:39,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:14:39,929 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 231 transitions. [2023-12-20 19:14:39,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-20 19:14:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 231 transitions. [2023-12-20 19:14:39,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-20 19:14:39,935 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:14:39,936 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:39,955 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 19:14:40,142 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 19:14:40,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:14:40,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:14:40,143 INFO L85 PathProgramCache]: Analyzing trace with hash 935867096, now seen corresponding path program 1 times [2023-12-20 19:14:40,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:14:40,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317459634] [2023-12-20 19:14:40,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:40,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:14:40,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:14:40,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1194894089] [2023-12-20 19:14:40,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:40,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:14:40,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:14:40,270 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 19:14:40,320 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 19:14:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:14:40,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 19:14:40,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:14:40,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-20 19:14:40,520 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:14:40,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:14:40,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317459634] [2023-12-20 19:14:40,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:14:40,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194894089] [2023-12-20 19:14:40,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194894089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:14:40,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:14:40,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 19:14:40,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308752579] [2023-12-20 19:14:40,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:14:40,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 19:14:40,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:14:40,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 19:14:40,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:14:40,525 INFO L87 Difference]: Start difference. First operand 141 states and 231 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-20 19:14:40,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:14:40,588 INFO L93 Difference]: Finished difference Result 350 states and 570 transitions. [2023-12-20 19:14:40,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 19:14:40,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 349 [2023-12-20 19:14:40,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:14:40,591 INFO L225 Difference]: With dead ends: 350 [2023-12-20 19:14:40,591 INFO L226 Difference]: Without dead ends: 210 [2023-12-20 19:14:40,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 347 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 19:14:40,594 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 107 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:14:40,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 476 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:14:40,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-20 19:14:40,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 207. [2023-12-20 19:14:40,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 130 states have (on average 1.4461538461538461) internal successors, (188), 131 states have internal predecessors, (188), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-20 19:14:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 336 transitions. [2023-12-20 19:14:40,623 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 336 transitions. Word has length 349 [2023-12-20 19:14:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:14:40,625 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 336 transitions. [2023-12-20 19:14:40,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-20 19:14:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 336 transitions. [2023-12-20 19:14:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-20 19:14:40,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:14:40,628 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:40,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 19:14:40,834 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 19:14:40,835 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:14:40,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:14:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash -753076646, now seen corresponding path program 1 times [2023-12-20 19:14:40,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:14:40,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162863820] [2023-12-20 19:14:40,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:40,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:14:40,880 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:14:40,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475480779] [2023-12-20 19:14:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:40,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:14:40,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:14:40,881 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 19:14:40,905 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 19:14:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:14:41,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 19:14:41,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:14:41,115 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-20 19:14:41,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:14:41,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:14:41,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162863820] [2023-12-20 19:14:41,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:14:41,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475480779] [2023-12-20 19:14:41,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475480779] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:14:41,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:14:41,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 19:14:41,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198454253] [2023-12-20 19:14:41,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:14:41,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 19:14:41,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:14:41,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 19:14:41,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 19:14:41,120 INFO L87 Difference]: Start difference. First operand 207 states and 336 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-20 19:14:41,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:14:41,187 INFO L93 Difference]: Finished difference Result 613 states and 994 transitions. [2023-12-20 19:14:41,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 19:14:41,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 349 [2023-12-20 19:14:41,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:14:41,192 INFO L225 Difference]: With dead ends: 613 [2023-12-20 19:14:41,192 INFO L226 Difference]: Without dead ends: 407 [2023-12-20 19:14:41,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 347 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 19:14:41,194 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 220 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:14:41,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 650 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:14:41,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-20 19:14:41,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 233. [2023-12-20 19:14:41,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 156 states have (on average 1.435897435897436) internal successors, (224), 157 states have internal predecessors, (224), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-20 19:14:41,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 372 transitions. [2023-12-20 19:14:41,231 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 372 transitions. Word has length 349 [2023-12-20 19:14:41,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:14:41,232 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 372 transitions. [2023-12-20 19:14:41,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-20 19:14:41,232 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 372 transitions. [2023-12-20 19:14:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-12-20 19:14:41,235 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:14:41,236 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:41,247 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 19:14:41,447 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 19:14:41,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:14:41,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:14:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash -494911208, now seen corresponding path program 1 times [2023-12-20 19:14:41,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:14:41,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336812317] [2023-12-20 19:14:41,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:41,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:14:41,507 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:14:41,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509288635] [2023-12-20 19:14:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:41,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:14:41,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:14:41,509 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 19:14:41,538 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 19:14:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:14:41,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 19:14:41,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:14:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-20 19:14:41,728 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:14:41,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:14:41,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336812317] [2023-12-20 19:14:41,728 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:14:41,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509288635] [2023-12-20 19:14:41,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509288635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:14:41,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:14:41,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 19:14:41,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955488943] [2023-12-20 19:14:41,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:14:41,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 19:14:41,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:14:41,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 19:14:41,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 19:14:41,730 INFO L87 Difference]: Start difference. First operand 233 states and 372 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-20 19:14:41,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:14:41,776 INFO L93 Difference]: Finished difference Result 598 states and 965 transitions. [2023-12-20 19:14:41,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 19:14:41,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 349 [2023-12-20 19:14:41,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:14:41,782 INFO L225 Difference]: With dead ends: 598 [2023-12-20 19:14:41,782 INFO L226 Difference]: Without dead ends: 366 [2023-12-20 19:14:41,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-20 19:14:41,784 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 224 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:14:41,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1217 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:14:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-12-20 19:14:41,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 233. [2023-12-20 19:14:41,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 156 states have (on average 1.4102564102564104) internal successors, (220), 157 states have internal predecessors, (220), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-20 19:14:41,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 368 transitions. [2023-12-20 19:14:41,805 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 368 transitions. Word has length 349 [2023-12-20 19:14:41,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:14:41,806 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 368 transitions. [2023-12-20 19:14:41,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-20 19:14:41,806 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 368 transitions. [2023-12-20 19:14:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-12-20 19:14:41,809 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:14:41,809 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:14:41,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-20 19:14:42,015 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 19:14:42,015 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:14:42,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:14:42,016 INFO L85 PathProgramCache]: Analyzing trace with hash 524821149, now seen corresponding path program 1 times [2023-12-20 19:14:42,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:14:42,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641968317] [2023-12-20 19:14:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:42,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:14:42,073 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:14:42,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886037792] [2023-12-20 19:14:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:14:42,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:14:42,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:14:42,079 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 19:14:42,104 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 19:14:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:14:42,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 19:14:42,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:29:01,186 WARN L293 SmtUtils]: Spent 30.80s on a formula simplification. DAG size of input: 895 DAG size of output: 835 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 19:29:06,653 WARN L293 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 833 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 19:29:11,828 WARN L293 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 831 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-20 19:29:17,569 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 19:29:17,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-20 19:29:17,590 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 19:29:17,590 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 19:29:17,776 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 19:29:17,776 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 352 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-26-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2023-12-20 19:29:17,780 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-20 19:29:17,783 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 19:29:17,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 07:29:17 BoogieIcfgContainer [2023-12-20 19:29:17,786 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 19:29:17,788 INFO L158 Benchmark]: Toolchain (without parser) took 879513.28ms. Allocated memory was 230.7MB in the beginning and 849.3MB in the end (delta: 618.7MB). Free memory was 196.0MB in the beginning and 736.1MB in the end (delta: -540.1MB). Peak memory consumption was 522.9MB. Max. memory is 8.0GB. [2023-12-20 19:29:17,789 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 19:29:17,789 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.67ms. Allocated memory is still 230.7MB. Free memory was 195.8MB in the beginning and 176.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-20 19:29:17,789 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.05ms. Allocated memory is still 230.7MB. Free memory was 176.9MB in the beginning and 170.1MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-20 19:29:17,790 INFO L158 Benchmark]: Boogie Preprocessor took 55.40ms. Allocated memory is still 230.7MB. Free memory was 170.1MB in the beginning and 161.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-20 19:29:17,790 INFO L158 Benchmark]: RCFGBuilder took 558.00ms. Allocated memory is still 230.7MB. Free memory was 161.2MB in the beginning and 191.9MB in the end (delta: -30.7MB). Peak memory consumption was 46.9MB. Max. memory is 8.0GB. [2023-12-20 19:29:17,790 INFO L158 Benchmark]: TraceAbstraction took 878545.08ms. Allocated memory was 230.7MB in the beginning and 849.3MB in the end (delta: 618.7MB). Free memory was 190.9MB in the beginning and 736.1MB in the end (delta: -545.3MB). Peak memory consumption was 516.9MB. Max. memory is 8.0GB. [2023-12-20 19:29:17,792 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 237.67ms. Allocated memory is still 230.7MB. Free memory was 195.8MB in the beginning and 176.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 112.05ms. Allocated memory is still 230.7MB. Free memory was 176.9MB in the beginning and 170.1MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.40ms. Allocated memory is still 230.7MB. Free memory was 170.1MB in the beginning and 161.2MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 558.00ms. Allocated memory is still 230.7MB. Free memory was 161.2MB in the beginning and 191.9MB in the end (delta: -30.7MB). Peak memory consumption was 46.9MB. Max. memory is 8.0GB. * TraceAbstraction took 878545.08ms. Allocated memory was 230.7MB in the beginning and 849.3MB in the end (delta: 618.7MB). Free memory was 190.9MB in the beginning and 736.1MB in the end (delta: -545.3MB). Peak memory consumption was 516.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 352 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-26-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 143 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 878.5s, OverallIterations: 5, TraceHistogramMax: 58, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 551 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 551 mSDsluCounter, 2571 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1223 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 1348 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1393 GetRequests, 1387 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 310 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 1745 NumberOfCodeBlocks, 1745 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1392 ConstructedInterpolants, 0 QuantifiedInterpolants, 1491 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3061 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 26448/26448 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