/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 19:30:34,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 19:30:34,605 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 19:30:34,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 19:30:34,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 19:30:34,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 19:30:34,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 19:30:34,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 19:30:34,639 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 19:30:34,643 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 19:30:34,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 19:30:34,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 19:30:34,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 19:30:34,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 19:30:34,645 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 19:30:34,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 19:30:34,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 19:30:34,646 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 19:30:34,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 19:30:34,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 19:30:34,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 19:30:34,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 19:30:34,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 19:30:34,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 19:30:34,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 19:30:34,648 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 19:30:34,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 19:30:34,649 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 19:30:34,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 19:30:34,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 19:30:34,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 19:30:34,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 19:30:34,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:30:34,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 19:30:34,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 19:30:34,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 19:30:34,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 19:30:34,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 19:30:34,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 19:30:34,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 19:30:34,652 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 19:30:34,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 19:30:34,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 19:30:34,653 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 19:30:34,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 19:30:34,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 19:30:34,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 19:30:34,917 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 19:30:34,917 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 19:30:34,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i [2023-12-20 19:30:36,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 19:30:36,265 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 19:30:36,266 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i [2023-12-20 19:30:36,275 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bc4fcba/d8f1a63ad16248f399218c8d65bb7d59/FLAG444210195 [2023-12-20 19:30:36,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9bc4fcba/d8f1a63ad16248f399218c8d65bb7d59 [2023-12-20 19:30:36,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 19:30:36,305 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 19:30:36,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 19:30:36,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 19:30:36,312 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 19:30:36,313 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50df0cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36, skipping insertion in model container [2023-12-20 19:30:36,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,370 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 19:30:36,530 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i[916,929] [2023-12-20 19:30:36,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:30:36,689 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 19:30:36,700 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-59.i[916,929] [2023-12-20 19:30:36,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 19:30:36,771 INFO L206 MainTranslator]: Completed translation [2023-12-20 19:30:36,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36 WrapperNode [2023-12-20 19:30:36,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 19:30:36,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 19:30:36,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 19:30:36,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 19:30:36,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,860 INFO L138 Inliner]: procedures = 26, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 425 [2023-12-20 19:30:36,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 19:30:36,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 19:30:36,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 19:30:36,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 19:30:36,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,929 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 19:30:36,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:36,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 19:30:36,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 19:30:36,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 19:30:36,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 19:30:36,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (1/1) ... [2023-12-20 19:30:37,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 19:30:37,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:37,025 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 19:30:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 19:30:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 19:30:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 19:30:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 19:30:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 19:30:37,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 19:30:37,048 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 19:30:37,183 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 19:30:37,187 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 19:30:37,809 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 19:30:37,840 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 19:30:37,840 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 19:30:37,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:30:37 BoogieIcfgContainer [2023-12-20 19:30:37,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 19:30:37,843 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 19:30:37,843 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 19:30:37,845 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 19:30:37,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 07:30:36" (1/3) ... [2023-12-20 19:30:37,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e34783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:30:37, skipping insertion in model container [2023-12-20 19:30:37,846 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 07:30:36" (2/3) ... [2023-12-20 19:30:37,846 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e34783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 07:30:37, skipping insertion in model container [2023-12-20 19:30:37,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 07:30:37" (3/3) ... [2023-12-20 19:30:37,848 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-59.i [2023-12-20 19:30:37,862 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 19:30:37,863 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 19:30:37,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 19:30:37,908 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;@4ef27cf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 19:30:37,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 19:30:37,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 173 states, 111 states have (on average 1.5765765765765767) internal successors, (175), 112 states have internal predecessors, (175), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-20 19:30:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-20 19:30:37,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:37,933 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:37,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:37,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:37,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1990422721, now seen corresponding path program 1 times [2023-12-20 19:30:37,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:37,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606937390] [2023-12-20 19:30:37,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:37,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:38,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:30:38,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606937390] [2023-12-20 19:30:38,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 19:30:38,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504548492] [2023-12-20 19:30:38,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:38,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:38,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:38,245 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 19:30:38,261 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 19:30:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:38,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 19:30:38,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:30:38,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 6728 trivial. 0 not checked. [2023-12-20 19:30:38,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:30:38,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504548492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:30:38,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:30:38,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 19:30:38,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760857248] [2023-12-20 19:30:38,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:30:38,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 19:30:38,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:30:38,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 19:30:38,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 19:30:38,711 INFO L87 Difference]: Start difference. First operand has 173 states, 111 states have (on average 1.5765765765765767) internal successors, (175), 112 states have internal predecessors, (175), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-20 19:30:38,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:30:38,765 INFO L93 Difference]: Finished difference Result 343 states and 643 transitions. [2023-12-20 19:30:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 19:30:38,768 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) Word has length 373 [2023-12-20 19:30:38,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:30:38,776 INFO L225 Difference]: With dead ends: 343 [2023-12-20 19:30:38,776 INFO L226 Difference]: Without dead ends: 171 [2023-12-20 19:30:38,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 19:30:38,783 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 19:30:38,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 19:30:38,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-20 19:30:38,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-12-20 19:30:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 110 states have (on average 1.5363636363636364) internal successors, (169), 110 states have internal predecessors, (169), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-20 19:30:38,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 287 transitions. [2023-12-20 19:30:38,835 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 287 transitions. Word has length 373 [2023-12-20 19:30:38,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:30:38,835 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 287 transitions. [2023-12-20 19:30:38,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-20 19:30:38,836 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 287 transitions. [2023-12-20 19:30:38,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2023-12-20 19:30:38,848 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:38,848 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:38,859 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 19:30:39,056 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 19:30:39,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:39,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:39,057 INFO L85 PathProgramCache]: Analyzing trace with hash -2145248075, now seen corresponding path program 1 times [2023-12-20 19:30:39,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:39,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741349931] [2023-12-20 19:30:39,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:39,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:39,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:30:39,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081816478] [2023-12-20 19:30:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:39,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:39,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:39,177 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 19:30:39,196 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 19:30:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:39,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 19:30:39,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:30:39,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 2778 proven. 126 refuted. 0 times theorem prover too weak. 3940 trivial. 0 not checked. [2023-12-20 19:30:39,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:30:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 48 proven. 126 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-20 19:30:40,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:30:40,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741349931] [2023-12-20 19:30:40,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:30:40,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081816478] [2023-12-20 19:30:40,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081816478] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:30:40,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:30:40,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-20 19:30:40,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960183025] [2023-12-20 19:30:40,233 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:30:40,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 19:30:40,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:30:40,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 19:30:40,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 19:30:40,242 INFO L87 Difference]: Start difference. First operand 171 states and 287 transitions. Second operand has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2023-12-20 19:30:40,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:30:40,680 INFO L93 Difference]: Finished difference Result 347 states and 578 transitions. [2023-12-20 19:30:40,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 19:30:40,681 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) Word has length 373 [2023-12-20 19:30:40,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:30:40,684 INFO L225 Difference]: With dead ends: 347 [2023-12-20 19:30:40,684 INFO L226 Difference]: Without dead ends: 177 [2023-12-20 19:30:40,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 738 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-20 19:30:40,686 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 154 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 19:30:40,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 462 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 19:30:40,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-20 19:30:40,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2023-12-20 19:30:40,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 113 states have (on average 1.5132743362831858) internal successors, (171), 113 states have internal predecessors, (171), 59 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-20 19:30:40,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 289 transitions. [2023-12-20 19:30:40,713 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 289 transitions. Word has length 373 [2023-12-20 19:30:40,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:30:40,714 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 289 transitions. [2023-12-20 19:30:40,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.25) internal successors, (122), 8 states have internal predecessors, (122), 3 states have call successors, (101), 2 states have call predecessors, (101), 4 states have return successors, (102), 3 states have call predecessors, (102), 3 states have call successors, (102) [2023-12-20 19:30:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 289 transitions. [2023-12-20 19:30:40,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-12-20 19:30:40,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:40,721 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:40,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 19:30:40,929 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 19:30:40,929 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:40,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:40,930 INFO L85 PathProgramCache]: Analyzing trace with hash -154594784, now seen corresponding path program 1 times [2023-12-20 19:30:40,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:40,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126082950] [2023-12-20 19:30:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:40,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:41,027 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:30:41,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [420265303] [2023-12-20 19:30:41,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:41,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:41,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:41,037 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 19:30:41,055 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 19:30:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:41,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 19:30:41,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:30:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 3499 proven. 21 refuted. 0 times theorem prover too weak. 3324 trivial. 0 not checked. [2023-12-20 19:30:42,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:30:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 153 proven. 21 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-20 19:30:42,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:30:42,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126082950] [2023-12-20 19:30:42,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:30:42,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420265303] [2023-12-20 19:30:42,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420265303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:30:42,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:30:42,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-20 19:30:42,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887179978] [2023-12-20 19:30:42,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:30:42,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 19:30:42,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:30:42,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 19:30:42,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-20 19:30:42,697 INFO L87 Difference]: Start difference. First operand 175 states and 289 transitions. Second operand has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 6 states have call successors, (118), 4 states have call predecessors, (118), 6 states have return successors, (118), 6 states have call predecessors, (118), 6 states have call successors, (118) [2023-12-20 19:30:43,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:30:43,790 INFO L93 Difference]: Finished difference Result 632 states and 1042 transitions. [2023-12-20 19:30:43,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 19:30:43,791 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 6 states have call successors, (118), 4 states have call predecessors, (118), 6 states have return successors, (118), 6 states have call predecessors, (118), 6 states have call successors, (118) Word has length 374 [2023-12-20 19:30:43,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:30:43,798 INFO L225 Difference]: With dead ends: 632 [2023-12-20 19:30:43,799 INFO L226 Difference]: Without dead ends: 458 [2023-12-20 19:30:43,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2023-12-20 19:30:43,802 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 943 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 19:30:43,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 1320 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 19:30:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-12-20 19:30:43,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 351. [2023-12-20 19:30:43,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 227 states have (on average 1.5066079295154184) internal successors, (342), 227 states have internal predecessors, (342), 118 states have call successors, (118), 5 states have call predecessors, (118), 5 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-20 19:30:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 578 transitions. [2023-12-20 19:30:43,898 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 578 transitions. Word has length 374 [2023-12-20 19:30:43,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:30:43,901 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 578 transitions. [2023-12-20 19:30:43,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.25) internal successors, (159), 12 states have internal predecessors, (159), 6 states have call successors, (118), 4 states have call predecessors, (118), 6 states have return successors, (118), 6 states have call predecessors, (118), 6 states have call successors, (118) [2023-12-20 19:30:43,901 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 578 transitions. [2023-12-20 19:30:43,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2023-12-20 19:30:43,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:43,904 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:43,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-20 19:30:44,116 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 19:30:44,117 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:44,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash 735891170, now seen corresponding path program 1 times [2023-12-20 19:30:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:44,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559578276] [2023-12-20 19:30:44,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:44,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:44,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:30:44,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629804576] [2023-12-20 19:30:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:44,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:44,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:44,190 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 19:30:44,215 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 19:30:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:44,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 19:30:44,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:30:44,817 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-20 19:30:44,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:30:44,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:30:44,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559578276] [2023-12-20 19:30:44,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:30:44,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629804576] [2023-12-20 19:30:44,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629804576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:30:44,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:30:44,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 19:30:44,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102710460] [2023-12-20 19:30:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:30:44,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 19:30:44,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:30:44,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 19:30:44,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 19:30:44,821 INFO L87 Difference]: Start difference. First operand 351 states and 578 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-20 19:30:45,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:30:45,013 INFO L93 Difference]: Finished difference Result 919 states and 1516 transitions. [2023-12-20 19:30:45,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 19:30:45,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 375 [2023-12-20 19:30:45,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:30:45,020 INFO L225 Difference]: With dead ends: 919 [2023-12-20 19:30:45,020 INFO L226 Difference]: Without dead ends: 569 [2023-12-20 19:30:45,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 19:30:45,025 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 239 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 19:30:45,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 845 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 19:30:45,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-12-20 19:30:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 535. [2023-12-20 19:30:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 349 states have (on average 1.518624641833811) internal successors, (530), 349 states have internal predecessors, (530), 177 states have call successors, (177), 8 states have call predecessors, (177), 8 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-12-20 19:30:45,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 884 transitions. [2023-12-20 19:30:45,108 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 884 transitions. Word has length 375 [2023-12-20 19:30:45,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:30:45,109 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 884 transitions. [2023-12-20 19:30:45,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-20 19:30:45,110 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 884 transitions. [2023-12-20 19:30:45,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-12-20 19:30:45,112 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:45,112 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:45,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 19:30:45,319 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 19:30:45,320 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:45,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:45,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1108055241, now seen corresponding path program 1 times [2023-12-20 19:30:45,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:45,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267769964] [2023-12-20 19:30:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:45,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:45,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:30:45,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722872998] [2023-12-20 19:30:45,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:45,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:45,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:45,365 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 19:30:45,381 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 19:30:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:45,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-20 19:30:45,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:30:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-20 19:30:46,074 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 19:30:46,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:30:46,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267769964] [2023-12-20 19:30:46,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:30:46,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722872998] [2023-12-20 19:30:46,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722872998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 19:30:46,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 19:30:46,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 19:30:46,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638913556] [2023-12-20 19:30:46,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 19:30:46,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 19:30:46,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:30:46,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 19:30:46,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 19:30:46,076 INFO L87 Difference]: Start difference. First operand 535 states and 884 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-20 19:30:46,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:30:46,411 INFO L93 Difference]: Finished difference Result 1251 states and 2059 transitions. [2023-12-20 19:30:46,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 19:30:46,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 376 [2023-12-20 19:30:46,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:30:46,418 INFO L225 Difference]: With dead ends: 1251 [2023-12-20 19:30:46,418 INFO L226 Difference]: Without dead ends: 901 [2023-12-20 19:30:46,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-20 19:30:46,420 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 434 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 19:30:46,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 986 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 19:30:46,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2023-12-20 19:30:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 883. [2023-12-20 19:30:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 574 states have (on average 1.5087108013937283) internal successors, (866), 574 states have internal predecessors, (866), 295 states have call successors, (295), 13 states have call predecessors, (295), 13 states have return successors, (295), 295 states have call predecessors, (295), 295 states have call successors, (295) [2023-12-20 19:30:46,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1456 transitions. [2023-12-20 19:30:46,532 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1456 transitions. Word has length 376 [2023-12-20 19:30:46,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:30:46,532 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1456 transitions. [2023-12-20 19:30:46,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-20 19:30:46,533 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1456 transitions. [2023-12-20 19:30:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-20 19:30:46,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:46,554 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:46,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 19:30:46,762 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 19:30:46,762 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:46,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:46,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1693262443, now seen corresponding path program 1 times [2023-12-20 19:30:46,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:46,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184454023] [2023-12-20 19:30:46,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:46,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:46,807 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:30:46,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [319148126] [2023-12-20 19:30:46,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:46,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:46,809 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 19:30:46,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 19:30:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:47,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 19:30:47,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:30:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 2290 proven. 138 refuted. 0 times theorem prover too weak. 4416 trivial. 0 not checked. [2023-12-20 19:30:48,028 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:30:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 36 proven. 138 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-20 19:30:48,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:30:48,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184454023] [2023-12-20 19:30:48,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:30:48,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319148126] [2023-12-20 19:30:48,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319148126] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:30:48,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:30:48,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2023-12-20 19:30:48,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690562756] [2023-12-20 19:30:48,588 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:30:48,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-20 19:30:48,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:30:48,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-20 19:30:48,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-20 19:30:48,591 INFO L87 Difference]: Start difference. First operand 883 states and 1456 transitions. Second operand has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (118), 4 states have call predecessors, (118), 4 states have call successors, (118) [2023-12-20 19:30:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:30:50,444 INFO L93 Difference]: Finished difference Result 2727 states and 4361 transitions. [2023-12-20 19:30:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-20 19:30:50,445 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (118), 4 states have call predecessors, (118), 4 states have call successors, (118) Word has length 377 [2023-12-20 19:30:50,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:30:50,461 INFO L225 Difference]: With dead ends: 2727 [2023-12-20 19:30:50,461 INFO L226 Difference]: Without dead ends: 2029 [2023-12-20 19:30:50,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 743 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=1062, Unknown=0, NotChecked=0, Total=1406 [2023-12-20 19:30:50,465 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 1975 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 19:30:50,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1989 Valid, 2271 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 19:30:50,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2023-12-20 19:30:50,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 1159. [2023-12-20 19:30:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 763 states have (on average 1.4403669724770642) internal successors, (1099), 769 states have internal predecessors, (1099), 369 states have call successors, (369), 26 states have call predecessors, (369), 26 states have return successors, (369), 363 states have call predecessors, (369), 369 states have call successors, (369) [2023-12-20 19:30:50,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1837 transitions. [2023-12-20 19:30:50,655 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1837 transitions. Word has length 377 [2023-12-20 19:30:50,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:30:50,656 INFO L495 AbstractCegarLoop]: Abstraction has 1159 states and 1837 transitions. [2023-12-20 19:30:50,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.533333333333333) internal successors, (173), 15 states have internal predecessors, (173), 4 states have call successors, (118), 3 states have call predecessors, (118), 5 states have return successors, (118), 4 states have call predecessors, (118), 4 states have call successors, (118) [2023-12-20 19:30:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1837 transitions. [2023-12-20 19:30:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-12-20 19:30:50,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:50,659 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:50,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 19:30:50,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:50,867 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:50,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1636004141, now seen corresponding path program 1 times [2023-12-20 19:30:50,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:50,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595892483] [2023-12-20 19:30:50,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:50,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:50,917 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:30:50,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812124455] [2023-12-20 19:30:50,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:50,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:50,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:50,918 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 19:30:50,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 19:30:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 19:30:51,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-20 19:30:51,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 19:30:52,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 4617 proven. 345 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2023-12-20 19:30:52,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 19:30:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 186 proven. 159 refuted. 0 times theorem prover too weak. 6499 trivial. 0 not checked. [2023-12-20 19:30:53,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 19:30:53,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595892483] [2023-12-20 19:30:53,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 19:30:53,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812124455] [2023-12-20 19:30:53,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812124455] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 19:30:53,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 19:30:53,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9] total 22 [2023-12-20 19:30:53,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973266607] [2023-12-20 19:30:53,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 19:30:53,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 19:30:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 19:30:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 19:30:53,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-12-20 19:30:53,828 INFO L87 Difference]: Start difference. First operand 1159 states and 1837 transitions. Second operand has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 7 states have call successors, (96), 5 states have call predecessors, (96), 10 states have return successors, (97), 7 states have call predecessors, (97), 7 states have call successors, (97) [2023-12-20 19:30:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 19:30:55,365 INFO L93 Difference]: Finished difference Result 2358 states and 3605 transitions. [2023-12-20 19:30:55,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-20 19:30:55,367 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 7 states have call successors, (96), 5 states have call predecessors, (96), 10 states have return successors, (97), 7 states have call predecessors, (97), 7 states have call successors, (97) Word has length 377 [2023-12-20 19:30:55,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 19:30:55,375 INFO L225 Difference]: With dead ends: 2358 [2023-12-20 19:30:55,375 INFO L226 Difference]: Without dead ends: 1339 [2023-12-20 19:30:55,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 776 GetRequests, 733 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=533, Invalid=1359, Unknown=0, NotChecked=0, Total=1892 [2023-12-20 19:30:55,379 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 726 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 19:30:55,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 989 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [314 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 19:30:55,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1339 states. [2023-12-20 19:30:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1339 to 1279. [2023-12-20 19:30:55,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 853 states have (on average 1.381008206330598) internal successors, (1178), 859 states have internal predecessors, (1178), 369 states have call successors, (369), 56 states have call predecessors, (369), 56 states have return successors, (369), 363 states have call predecessors, (369), 369 states have call successors, (369) [2023-12-20 19:30:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1916 transitions. [2023-12-20 19:30:55,537 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1916 transitions. Word has length 377 [2023-12-20 19:30:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 19:30:55,537 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1916 transitions. [2023-12-20 19:30:55,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.045454545454546) internal successors, (155), 21 states have internal predecessors, (155), 7 states have call successors, (96), 5 states have call predecessors, (96), 10 states have return successors, (97), 7 states have call predecessors, (97), 7 states have call successors, (97) [2023-12-20 19:30:55,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1916 transitions. [2023-12-20 19:30:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-12-20 19:30:55,540 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 19:30:55,540 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:30:55,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-20 19:30:55,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:55,748 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 19:30:55,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 19:30:55,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1294454828, now seen corresponding path program 1 times [2023-12-20 19:30:55,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 19:30:55,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085425574] [2023-12-20 19:30:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:55,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 19:30:55,808 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 19:30:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722630954] [2023-12-20 19:30:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 19:30:55,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 19:30:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 19:30:55,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 19:30:55,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process Received shutdown request... [2023-12-20 19:45:11,653 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 19:45:11,653 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 19:45:12,681 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-20 19:45:12,864 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2023-12-20 19:45:12,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2023-12-20 19:45:12,877 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-20 19:45:12,880 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 19:45:12,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 19:45:12,881 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 379 with TraceHistMax 59,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-20 19:45:12,884 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 19:45:12,887 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 19:45:12,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 07:45:12 BoogieIcfgContainer [2023-12-20 19:45:12,889 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 19:45:12,890 INFO L158 Benchmark]: Toolchain (without parser) took 876584.41ms. Allocated memory was 180.4MB in the beginning and 494.9MB in the end (delta: 314.6MB). Free memory was 121.1MB in the beginning and 438.1MB in the end (delta: -317.0MB). Peak memory consumption was 188.7MB. Max. memory is 8.0GB. [2023-12-20 19:45:12,890 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 19:45:12,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.36ms. Allocated memory is still 180.4MB. Free memory was 120.9MB in the beginning and 98.0MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2023-12-20 19:45:12,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.58ms. Allocated memory is still 180.4MB. Free memory was 98.0MB in the beginning and 90.7MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-20 19:45:12,890 INFO L158 Benchmark]: Boogie Preprocessor took 130.07ms. Allocated memory is still 180.4MB. Free memory was 90.7MB in the beginning and 80.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-20 19:45:12,891 INFO L158 Benchmark]: RCFGBuilder took 845.29ms. Allocated memory was 180.4MB in the beginning and 255.9MB in the end (delta: 75.5MB). Free memory was 80.2MB in the beginning and 186.1MB in the end (delta: -105.9MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. [2023-12-20 19:45:12,891 INFO L158 Benchmark]: TraceAbstraction took 875046.36ms. Allocated memory was 255.9MB in the beginning and 494.9MB in the end (delta: 239.1MB). Free memory was 185.6MB in the beginning and 438.1MB in the end (delta: -252.5MB). Peak memory consumption was 176.9MB. Max. memory is 8.0GB. [2023-12-20 19:45:12,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 133.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 464.36ms. Allocated memory is still 180.4MB. Free memory was 120.9MB in the beginning and 98.0MB in the end (delta: 22.9MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 86.58ms. Allocated memory is still 180.4MB. Free memory was 98.0MB in the beginning and 90.7MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 130.07ms. Allocated memory is still 180.4MB. Free memory was 90.7MB in the beginning and 80.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 845.29ms. Allocated memory was 180.4MB in the beginning and 255.9MB in the end (delta: 75.5MB). Free memory was 80.2MB in the beginning and 186.1MB in the end (delta: -105.9MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. * TraceAbstraction took 875046.36ms. Allocated memory was 255.9MB in the beginning and 494.9MB in the end (delta: 239.1MB). Free memory was 185.6MB in the beginning and 438.1MB in the end (delta: -252.5MB). Peak memory consumption was 176.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 379 with TraceHistMax 59,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 173 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 875.0s, OverallIterations: 8, TraceHistogramMax: 59, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4598 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4471 mSDsluCounter, 7157 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5259 mSDsCounter, 2077 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3930 IncrementalHoareTripleChecker+Invalid, 6007 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2077 mSolverCounterUnsat, 1898 mSDtfsCounter, 3930 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4179 GetRequests, 4065 SyntacticMatches, 2 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1279occurred in iteration=7, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 1091 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 2998 NumberOfCodeBlocks, 2998 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 4115 ConstructedInterpolants, 0 QuantifiedInterpolants, 18972 SizeOfPredicates, 31 NumberOfNonLiveVariables, 6033 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 74210/75284 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown