/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-18.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:44:04,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:44:05,063 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:44:05,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:44:05,067 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:44:05,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:44:05,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:44:05,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:44:05,091 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:44:05,091 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:44:05,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:44:05,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:44:05,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:44:05,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:44:05,098 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:44:05,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:44:05,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:44:05,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:44:05,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:44:05,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:44:05,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:44:05,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:44:05,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:44:05,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:44:05,101 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:44:05,101 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:44:05,101 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:44:05,101 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:44:05,102 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:44:05,102 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:44:05,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:44:05,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:44:05,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:44:05,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:44:05,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:44:05,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:44:05,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:44:05,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:44:05,104 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:44:05,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:44:05,104 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:44:05,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:44:05,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:44:05,104 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:44:05,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:44:05,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:44:05,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:44:05,333 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:44:05,333 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:44:05,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-18.i [2023-12-19 15:44:06,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:44:07,096 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:44:07,097 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-18.i [2023-12-19 15:44:07,104 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8becc4297/0d06b632312f4163afda0e1eaa3a7574/FLAGf6b5748c3 [2023-12-19 15:44:07,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8becc4297/0d06b632312f4163afda0e1eaa3a7574 [2023-12-19 15:44:07,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:44:07,119 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:44:07,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:44:07,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:44:07,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:44:07,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774cc3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07, skipping insertion in model container [2023-12-19 15:44:07,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,151 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:44:07,244 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_variablewrapping_wrapper-s_file-18.i[916,929] [2023-12-19 15:44:07,310 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:44:07,325 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:44:07,335 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_variablewrapping_wrapper-s_file-18.i[916,929] [2023-12-19 15:44:07,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:44:07,397 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:44:07,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07 WrapperNode [2023-12-19 15:44:07,397 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:44:07,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:44:07,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:44:07,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:44:07,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,447 INFO L138 Inliner]: procedures = 29, calls = 139, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 473 [2023-12-19 15:44:07,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:44:07,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:44:07,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:44:07,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:44:07,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,480 INFO L175 MemorySlicer]: Split 115 memory accesses to 2 slices as follows [2, 113]. 98 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10]. The 13 writes are split as follows [0, 13]. [2023-12-19 15:44:07,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,504 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:44:07,505 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:44:07,505 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:44:07,505 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:44:07,506 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (1/1) ... [2023-12-19 15:44:07,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:44:07,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:07,531 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) [2023-12-19 15:44:07,557 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 [2023-12-19 15:44:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:44:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-19 15:44:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-19 15:44:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:44:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:44:07,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:44:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:44:07,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:44:07,671 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:44:07,673 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:44:08,030 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:44:08,053 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:44:08,054 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:44:08,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:44:08 BoogieIcfgContainer [2023-12-19 15:44:08,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:44:08,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:44:08,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:44:08,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:44:08,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:44:07" (1/3) ... [2023-12-19 15:44:08,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7364c3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:44:08, skipping insertion in model container [2023-12-19 15:44:08,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:44:07" (2/3) ... [2023-12-19 15:44:08,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7364c3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:44:08, skipping insertion in model container [2023-12-19 15:44:08,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:44:08" (3/3) ... [2023-12-19 15:44:08,059 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-18.i [2023-12-19 15:44:08,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:44:08,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:44:08,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:44:08,107 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;@409544cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:44:08,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:44:08,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 82 states have (on average 1.524390243902439) internal successors, (125), 83 states have internal predecessors, (125), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 15:44:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-19 15:44:08,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:08,120 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:08,121 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:08,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:08,124 INFO L85 PathProgramCache]: Analyzing trace with hash 922715788, now seen corresponding path program 1 times [2023-12-19 15:44:08,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:08,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587491775] [2023-12-19 15:44:08,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:08,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:08,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:08,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587491775] [2023-12-19 15:44:08,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:44:08,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258631870] [2023-12-19 15:44:08,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:08,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:08,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:08,334 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) [2023-12-19 15:44:08,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:44:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:08,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 15:44:08,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-12-19 15:44:08,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:08,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258631870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:08,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:08,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:44:08,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274869400] [2023-12-19 15:44:08,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:08,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:44:08,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:08,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:44:08,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:44:08,560 INFO L87 Difference]: Start difference. First operand has 97 states, 82 states have (on average 1.524390243902439) internal successors, (125), 83 states have internal predecessors, (125), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 15:44:08,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:08,614 INFO L93 Difference]: Finished difference Result 191 states and 308 transitions. [2023-12-19 15:44:08,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:44:08,616 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2023-12-19 15:44:08,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:08,621 INFO L225 Difference]: With dead ends: 191 [2023-12-19 15:44:08,621 INFO L226 Difference]: Without dead ends: 95 [2023-12-19 15:44:08,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:44:08,626 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:08,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:44:08,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-19 15:44:08,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-19 15:44:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 81 states have (on average 1.4814814814814814) internal successors, (120), 81 states have internal predecessors, (120), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 15:44:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 144 transitions. [2023-12-19 15:44:08,668 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 144 transitions. Word has length 102 [2023-12-19 15:44:08,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:08,668 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 144 transitions. [2023-12-19 15:44:08,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 15:44:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 144 transitions. [2023-12-19 15:44:08,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-19 15:44:08,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:08,672 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:08,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:08,872 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 [2023-12-19 15:44:08,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:08,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:08,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1006237752, now seen corresponding path program 1 times [2023-12-19 15:44:08,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:08,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578718004] [2023-12-19 15:44:08,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:08,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:08,933 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:08,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786438557] [2023-12-19 15:44:08,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:08,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:08,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:08,935 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) [2023-12-19 15:44:08,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 15:44:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:09,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 15:44:09,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:09,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-12-19 15:44:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:44:09,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:09,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578718004] [2023-12-19 15:44:09,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:09,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786438557] [2023-12-19 15:44:09,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786438557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:09,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:09,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:44:09,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441749361] [2023-12-19 15:44:09,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:09,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:44:09,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:09,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:44:09,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:44:09,167 INFO L87 Difference]: Start difference. First operand 95 states and 144 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:09,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:09,251 INFO L93 Difference]: Finished difference Result 215 states and 327 transitions. [2023-12-19 15:44:09,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 15:44:09,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 102 [2023-12-19 15:44:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:09,257 INFO L225 Difference]: With dead ends: 215 [2023-12-19 15:44:09,257 INFO L226 Difference]: Without dead ends: 121 [2023-12-19 15:44:09,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:09,261 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 88 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:09,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 395 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:44:09,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-19 15:44:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 96. [2023-12-19 15:44:09,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 15:44:09,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 145 transitions. [2023-12-19 15:44:09,273 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 145 transitions. Word has length 102 [2023-12-19 15:44:09,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:09,274 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 145 transitions. [2023-12-19 15:44:09,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 145 transitions. [2023-12-19 15:44:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-19 15:44:09,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:09,284 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:09,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 15:44:09,491 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 [2023-12-19 15:44:09,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:09,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:09,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1707302330, now seen corresponding path program 1 times [2023-12-19 15:44:09,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:09,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666330026] [2023-12-19 15:44:09,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:09,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:09,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:09,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [598168388] [2023-12-19 15:44:09,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:09,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:09,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:09,537 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) [2023-12-19 15:44:09,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 15:44:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:09,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-19 15:44:09,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:09,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:09,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:09,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:09,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:09,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:09,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:09,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:44:09,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:09,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2023-12-19 15:44:09,961 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:44:09,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:09,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:09,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666330026] [2023-12-19 15:44:09,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:09,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598168388] [2023-12-19 15:44:09,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598168388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:09,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:09,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:44:09,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141783658] [2023-12-19 15:44:09,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:09,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:44:09,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:09,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:44:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:09,964 INFO L87 Difference]: Start difference. First operand 96 states and 145 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:10,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:10,262 INFO L93 Difference]: Finished difference Result 332 states and 503 transitions. [2023-12-19 15:44:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:44:10,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 102 [2023-12-19 15:44:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:10,265 INFO L225 Difference]: With dead ends: 332 [2023-12-19 15:44:10,265 INFO L226 Difference]: Without dead ends: 237 [2023-12-19 15:44:10,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:44:10,267 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 228 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:10,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 284 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:44:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-19 15:44:10,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 186. [2023-12-19 15:44:10,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 159 states have (on average 1.471698113207547) internal successors, (234), 159 states have internal predecessors, (234), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:44:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 282 transitions. [2023-12-19 15:44:10,289 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 282 transitions. Word has length 102 [2023-12-19 15:44:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:10,289 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 282 transitions. [2023-12-19 15:44:10,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 282 transitions. [2023-12-19 15:44:10,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 15:44:10,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:10,290 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:10,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:10,491 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 [2023-12-19 15:44:10,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:10,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 581398674, now seen corresponding path program 1 times [2023-12-19 15:44:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951208931] [2023-12-19 15:44:10,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:10,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:10,586 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:10,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433591296] [2023-12-19 15:44:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:10,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:10,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:10,592 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) [2023-12-19 15:44:10,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 15:44:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:10,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 15:44:10,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:10,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-12-19 15:44:10,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-19 15:44:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:44:10,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:10,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951208931] [2023-12-19 15:44:10,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:10,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433591296] [2023-12-19 15:44:10,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433591296] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:10,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:10,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:44:10,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179553019] [2023-12-19 15:44:10,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:10,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:44:10,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:10,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:44:10,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:10,783 INFO L87 Difference]: Start difference. First operand 186 states and 282 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:15,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:15,075 INFO L93 Difference]: Finished difference Result 489 states and 741 transitions. [2023-12-19 15:44:15,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:44:15,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-12-19 15:44:15,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:15,077 INFO L225 Difference]: With dead ends: 489 [2023-12-19 15:44:15,077 INFO L226 Difference]: Without dead ends: 304 [2023-12-19 15:44:15,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:44:15,079 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 218 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:15,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 364 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 319 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-19 15:44:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-19 15:44:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 183. [2023-12-19 15:44:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 156 states have (on average 1.4615384615384615) internal successors, (228), 156 states have internal predecessors, (228), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:44:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 276 transitions. [2023-12-19 15:44:15,090 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 276 transitions. Word has length 103 [2023-12-19 15:44:15,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:15,090 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 276 transitions. [2023-12-19 15:44:15,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:15,090 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 276 transitions. [2023-12-19 15:44:15,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 15:44:15,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:15,091 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:15,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:15,297 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 [2023-12-19 15:44:15,297 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:15,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:15,297 INFO L85 PathProgramCache]: Analyzing trace with hash 254642235, now seen corresponding path program 1 times [2023-12-19 15:44:15,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:15,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081739126] [2023-12-19 15:44:15,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:15,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:15,323 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:15,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746956321] [2023-12-19 15:44:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:15,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:15,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:15,324 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) [2023-12-19 15:44:15,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 15:44:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:15,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-19 15:44:15,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:15,470 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:44:15,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2023-12-19 15:44:15,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2023-12-19 15:44:15,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2023-12-19 15:44:15,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2023-12-19 15:44:15,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2023-12-19 15:44:15,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 16 [2023-12-19 15:44:15,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:15,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 34 [2023-12-19 15:44:15,739 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:15,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 46 [2023-12-19 15:44:15,767 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:15,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 16 [2023-12-19 15:44:15,798 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:44:15,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:44:16,038 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-19 15:44:16,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:16,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081739126] [2023-12-19 15:44:16,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:16,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746956321] [2023-12-19 15:44:16,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746956321] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:44:16,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:44:16,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2023-12-19 15:44:16,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075532358] [2023-12-19 15:44:16,039 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:44:16,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-19 15:44:16,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:16,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-19 15:44:16,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-12-19 15:44:16,040 INFO L87 Difference]: Start difference. First operand 183 states and 276 transitions. Second operand has 20 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 15:44:20,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:24,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:28,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:29,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:29,221 INFO L93 Difference]: Finished difference Result 583 states and 878 transitions. [2023-12-19 15:44:29,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 15:44:29,222 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 103 [2023-12-19 15:44:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:29,224 INFO L225 Difference]: With dead ends: 583 [2023-12-19 15:44:29,224 INFO L226 Difference]: Without dead ends: 401 [2023-12-19 15:44:29,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1159, Unknown=0, NotChecked=0, Total=1482 [2023-12-19 15:44:29,226 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 448 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 56 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:29,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 741 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1128 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2023-12-19 15:44:29,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-12-19 15:44:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 197. [2023-12-19 15:44:29,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 168 states have (on average 1.4345238095238095) internal successors, (241), 168 states have internal predecessors, (241), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:44:29,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 289 transitions. [2023-12-19 15:44:29,239 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 289 transitions. Word has length 103 [2023-12-19 15:44:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:29,240 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 289 transitions. [2023-12-19 15:44:29,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 15:44:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 289 transitions. [2023-12-19 15:44:29,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 15:44:29,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:29,241 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:29,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:29,447 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 [2023-12-19 15:44:29,448 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:29,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:29,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1275710589, now seen corresponding path program 1 times [2023-12-19 15:44:29,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:29,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637594367] [2023-12-19 15:44:29,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:29,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:29,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:29,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [727486334] [2023-12-19 15:44:29,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:29,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:29,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:29,503 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) [2023-12-19 15:44:29,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 15:44:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:29,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 15:44:29,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:29,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-12-19 15:44:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:44:29,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:29,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:29,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637594367] [2023-12-19 15:44:29,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:29,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727486334] [2023-12-19 15:44:29,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727486334] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:29,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:29,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:44:29,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524652003] [2023-12-19 15:44:29,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:29,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:44:29,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:29,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:44:29,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:44:29,671 INFO L87 Difference]: Start difference. First operand 197 states and 289 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:29,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:29,703 INFO L93 Difference]: Finished difference Result 391 states and 574 transitions. [2023-12-19 15:44:29,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 15:44:29,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-12-19 15:44:29,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:29,705 INFO L225 Difference]: With dead ends: 391 [2023-12-19 15:44:29,705 INFO L226 Difference]: Without dead ends: 195 [2023-12-19 15:44:29,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:29,707 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 12 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:29,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 391 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:44:29,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-19 15:44:29,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2023-12-19 15:44:29,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 165 states have (on average 1.4303030303030304) internal successors, (236), 165 states have internal predecessors, (236), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:44:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 284 transitions. [2023-12-19 15:44:29,720 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 284 transitions. Word has length 103 [2023-12-19 15:44:29,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:29,720 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 284 transitions. [2023-12-19 15:44:29,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:29,721 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 284 transitions. [2023-12-19 15:44:29,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 15:44:29,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:29,723 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:29,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:29,929 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 [2023-12-19 15:44:29,930 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:29,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash -147618443, now seen corresponding path program 1 times [2023-12-19 15:44:29,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132041418] [2023-12-19 15:44:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:29,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:29,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:29,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070555611] [2023-12-19 15:44:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:29,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:29,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:29,983 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) [2023-12-19 15:44:30,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 15:44:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:30,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-19 15:44:30,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:30,162 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:44:30,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:30,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:30,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132041418] [2023-12-19 15:44:30,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:30,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070555611] [2023-12-19 15:44:30,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070555611] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:30,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:30,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:44:30,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493341010] [2023-12-19 15:44:30,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:30,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:44:30,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:30,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:44:30,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:30,164 INFO L87 Difference]: Start difference. First operand 194 states and 284 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:34,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:38,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:44:38,361 INFO L93 Difference]: Finished difference Result 388 states and 568 transitions. [2023-12-19 15:44:38,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:44:38,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-12-19 15:44:38,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:44:38,371 INFO L225 Difference]: With dead ends: 388 [2023-12-19 15:44:38,371 INFO L226 Difference]: Without dead ends: 195 [2023-12-19 15:44:38,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:44:38,372 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 9 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:44:38,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 280 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2023-12-19 15:44:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-19 15:44:38,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2023-12-19 15:44:38,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 165 states have (on average 1.4181818181818182) internal successors, (234), 165 states have internal predecessors, (234), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:44:38,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 282 transitions. [2023-12-19 15:44:38,381 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 282 transitions. Word has length 104 [2023-12-19 15:44:38,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:44:38,381 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 282 transitions. [2023-12-19 15:44:38,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:38,381 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 282 transitions. [2023-12-19 15:44:38,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-19 15:44:38,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:44:38,382 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:44:38,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 15:44:38,582 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 [2023-12-19 15:44:38,583 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:44:38,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:44:38,583 INFO L85 PathProgramCache]: Analyzing trace with hash -433725418, now seen corresponding path program 1 times [2023-12-19 15:44:38,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:44:38,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878245217] [2023-12-19 15:44:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:38,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:44:38,603 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:44:38,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1331020375] [2023-12-19 15:44:38,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:44:38,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:44:38,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:44:38,605 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) [2023-12-19 15:44:38,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 15:44:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:44:38,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-19 15:44:38,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:44:38,841 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:44:38,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 20 [2023-12-19 15:44:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:44:38,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:44:38,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:44:38,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878245217] [2023-12-19 15:44:38,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:44:38,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331020375] [2023-12-19 15:44:38,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331020375] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:44:38,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:44:38,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 15:44:38,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521481406] [2023-12-19 15:44:38,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:44:38,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 15:44:38,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:44:38,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 15:44:38,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:44:38,860 INFO L87 Difference]: Start difference. First operand 194 states and 282 transitions. Second operand has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:44:43,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:47,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:51,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:55,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:44:59,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:03,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:45:03,940 INFO L93 Difference]: Finished difference Result 458 states and 670 transitions. [2023-12-19 15:45:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 15:45:03,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-12-19 15:45:03,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:45:03,942 INFO L225 Difference]: With dead ends: 458 [2023-12-19 15:45:03,942 INFO L226 Difference]: Without dead ends: 264 [2023-12-19 15:45:03,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:45:03,943 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 277 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 11 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:45:03,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1274 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1250 Invalid, 6 Unknown, 0 Unchecked, 25.0s Time] [2023-12-19 15:45:03,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-12-19 15:45:03,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 207. [2023-12-19 15:45:03,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 178 states have (on average 1.4157303370786516) internal successors, (252), 178 states have internal predecessors, (252), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:45:03,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 300 transitions. [2023-12-19 15:45:03,953 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 300 transitions. Word has length 104 [2023-12-19 15:45:03,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:45:03,953 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 300 transitions. [2023-12-19 15:45:03,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.7) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:03,954 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 300 transitions. [2023-12-19 15:45:03,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 15:45:03,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:45:03,954 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:45:03,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 15:45:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 15:45:04,163 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:45:04,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:45:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1082189916, now seen corresponding path program 1 times [2023-12-19 15:45:04,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:45:04,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408213050] [2023-12-19 15:45:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:04,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:45:04,183 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:45:04,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145929064] [2023-12-19 15:45:04,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:04,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:04,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:45:04,202 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:45:04,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 15:45:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:45:04,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:45:04,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:45:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:45:04,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:45:04,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:45:04,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408213050] [2023-12-19 15:45:04,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:45:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145929064] [2023-12-19 15:45:04,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145929064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:45:04,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:45:04,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:45:04,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654046932] [2023-12-19 15:45:04,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:45:04,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:45:04,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:45:04,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:45:04,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:45:04,383 INFO L87 Difference]: Start difference. First operand 207 states and 300 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:04,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:45:04,498 INFO L93 Difference]: Finished difference Result 467 states and 682 transitions. [2023-12-19 15:45:04,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:45:04,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-12-19 15:45:04,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:45:04,500 INFO L225 Difference]: With dead ends: 467 [2023-12-19 15:45:04,500 INFO L226 Difference]: Without dead ends: 261 [2023-12-19 15:45:04,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:45:04,501 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 85 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:45:04,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 224 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:45:04,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-12-19 15:45:04,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 211. [2023-12-19 15:45:04,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 182 states have (on average 1.401098901098901) internal successors, (255), 182 states have internal predecessors, (255), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:45:04,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 303 transitions. [2023-12-19 15:45:04,510 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 303 transitions. Word has length 105 [2023-12-19 15:45:04,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:45:04,510 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 303 transitions. [2023-12-19 15:45:04,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:04,511 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 303 transitions. [2023-12-19 15:45:04,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 15:45:04,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:45:04,511 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:45:04,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 15:45:04,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:04,718 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:45:04,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:45:04,719 INFO L85 PathProgramCache]: Analyzing trace with hash -824024478, now seen corresponding path program 1 times [2023-12-19 15:45:04,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:45:04,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169691104] [2023-12-19 15:45:04,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:04,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:45:04,769 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:45:04,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [391524100] [2023-12-19 15:45:04,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:04,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:04,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:45:04,789 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:45:04,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 15:45:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:45:04,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:45:04,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:45:04,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-12-19 15:45:04,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-12-19 15:45:04,979 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:45:04,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:45:04,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:45:04,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169691104] [2023-12-19 15:45:04,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:45:04,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391524100] [2023-12-19 15:45:04,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391524100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:45:04,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:45:04,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:45:04,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695632885] [2023-12-19 15:45:04,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:45:04,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:45:04,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:45:04,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:45:04,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:45:04,982 INFO L87 Difference]: Start difference. First operand 211 states and 303 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:09,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:09,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:45:09,342 INFO L93 Difference]: Finished difference Result 679 states and 980 transitions. [2023-12-19 15:45:09,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:45:09,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-12-19 15:45:09,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:45:09,344 INFO L225 Difference]: With dead ends: 679 [2023-12-19 15:45:09,344 INFO L226 Difference]: Without dead ends: 469 [2023-12-19 15:45:09,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:45:09,345 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 208 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:45:09,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 400 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 336 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-12-19 15:45:09,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-12-19 15:45:09,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 416. [2023-12-19 15:45:09,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 359 states have (on average 1.4038997214484679) internal successors, (504), 359 states have internal predecessors, (504), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 15:45:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 600 transitions. [2023-12-19 15:45:09,391 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 600 transitions. Word has length 105 [2023-12-19 15:45:09,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:45:09,392 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 600 transitions. [2023-12-19 15:45:09,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 600 transitions. [2023-12-19 15:45:09,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-19 15:45:09,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:45:09,393 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:45:09,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-19 15:45:09,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 15:45:09,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:45:09,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:45:09,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1885987618, now seen corresponding path program 1 times [2023-12-19 15:45:09,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:45:09,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731291623] [2023-12-19 15:45:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:09,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:45:09,616 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:45:09,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730698690] [2023-12-19 15:45:09,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:09,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:09,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:45:09,619 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:45:09,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 15:45:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:45:09,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 15:45:09,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:45:09,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:09,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 14 [2023-12-19 15:45:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:45:09,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:45:09,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:45:09,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731291623] [2023-12-19 15:45:09,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:45:09,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730698690] [2023-12-19 15:45:09,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730698690] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:45:09,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:45:09,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:45:09,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213127480] [2023-12-19 15:45:09,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:45:09,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:45:09,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:45:09,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:45:09,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:45:09,819 INFO L87 Difference]: Start difference. First operand 416 states and 600 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:09,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:45:09,944 INFO L93 Difference]: Finished difference Result 877 states and 1269 transitions. [2023-12-19 15:45:09,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:45:09,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-12-19 15:45:09,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:45:09,946 INFO L225 Difference]: With dead ends: 877 [2023-12-19 15:45:09,946 INFO L226 Difference]: Without dead ends: 462 [2023-12-19 15:45:09,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:45:09,948 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 184 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:45:09,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 375 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:45:09,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-12-19 15:45:09,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 211. [2023-12-19 15:45:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 182 states have (on average 1.3956043956043955) internal successors, (254), 182 states have internal predecessors, (254), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:45:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 302 transitions. [2023-12-19 15:45:09,959 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 302 transitions. Word has length 105 [2023-12-19 15:45:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:45:09,959 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 302 transitions. [2023-12-19 15:45:09,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 302 transitions. [2023-12-19 15:45:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:45:09,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:45:09,960 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:45:09,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 15:45:10,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 15:45:10,166 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:45:10,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:45:10,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1397163322, now seen corresponding path program 1 times [2023-12-19 15:45:10,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:45:10,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757941670] [2023-12-19 15:45:10,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:10,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:45:10,202 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:45:10,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123147920] [2023-12-19 15:45:10,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:10,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:10,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:45:10,272 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:45:10,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 15:45:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:45:10,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:45:10,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:45:10,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:10,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2023-12-19 15:45:10,482 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:10,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 14 [2023-12-19 15:45:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:45:10,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:45:10,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:45:10,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757941670] [2023-12-19 15:45:10,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:45:10,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123147920] [2023-12-19 15:45:10,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123147920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:45:10,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:45:10,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:45:10,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40367106] [2023-12-19 15:45:10,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:45:10,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:45:10,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:45:10,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:45:10,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:45:10,490 INFO L87 Difference]: Start difference. First operand 211 states and 302 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:10,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:45:10,746 INFO L93 Difference]: Finished difference Result 538 states and 776 transitions. [2023-12-19 15:45:10,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:45:10,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-12-19 15:45:10,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:45:10,748 INFO L225 Difference]: With dead ends: 538 [2023-12-19 15:45:10,748 INFO L226 Difference]: Without dead ends: 328 [2023-12-19 15:45:10,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:45:10,748 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 213 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:45:10,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 321 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:45:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-12-19 15:45:10,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 298. [2023-12-19 15:45:10,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 255 states have (on average 1.396078431372549) internal successors, (356), 255 states have internal predecessors, (356), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 15:45:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 428 transitions. [2023-12-19 15:45:10,762 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 428 transitions. Word has length 106 [2023-12-19 15:45:10,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:45:10,763 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 428 transitions. [2023-12-19 15:45:10,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:10,764 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 428 transitions. [2023-12-19 15:45:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:45:10,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:45:10,764 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:45:10,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 15:45:10,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 15:45:10,971 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:45:10,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:45:10,971 INFO L85 PathProgramCache]: Analyzing trace with hash 810357308, now seen corresponding path program 1 times [2023-12-19 15:45:10,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:45:10,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349985991] [2023-12-19 15:45:10,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:10,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:45:11,002 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:45:11,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1885760916] [2023-12-19 15:45:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:11,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:11,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:45:11,004 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:45:11,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 15:45:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:45:11,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-19 15:45:11,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:45:11,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:11,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 34 [2023-12-19 15:45:11,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:11,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 22 [2023-12-19 15:45:11,272 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:45:11,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:45:11,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:45:11,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349985991] [2023-12-19 15:45:11,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:45:11,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885760916] [2023-12-19 15:45:11,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885760916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:45:11,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:45:11,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:45:11,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459162278] [2023-12-19 15:45:11,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:45:11,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:45:11,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:45:11,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:45:11,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:45:11,274 INFO L87 Difference]: Start difference. First operand 298 states and 428 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:15,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:19,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:23,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:27,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:31,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:35,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:39,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:39,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:45:39,870 INFO L93 Difference]: Finished difference Result 603 states and 864 transitions. [2023-12-19 15:45:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:45:39,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-12-19 15:45:39,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:45:39,873 INFO L225 Difference]: With dead ends: 603 [2023-12-19 15:45:39,873 INFO L226 Difference]: Without dead ends: 306 [2023-12-19 15:45:39,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:45:39,874 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 168 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 9 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:45:39,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 399 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 513 Invalid, 7 Unknown, 0 Unchecked, 28.5s Time] [2023-12-19 15:45:39,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-12-19 15:45:39,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 298. [2023-12-19 15:45:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 255 states have (on average 1.392156862745098) internal successors, (355), 255 states have internal predecessors, (355), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 15:45:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 427 transitions. [2023-12-19 15:45:39,888 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 427 transitions. Word has length 106 [2023-12-19 15:45:39,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:45:39,888 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 427 transitions. [2023-12-19 15:45:39,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:45:39,888 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 427 transitions. [2023-12-19 15:45:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:45:39,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:45:39,890 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:45:39,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 15:45:40,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 15:45:40,096 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:45:40,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:45:40,097 INFO L85 PathProgramCache]: Analyzing trace with hash 417330298, now seen corresponding path program 1 times [2023-12-19 15:45:40,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:45:40,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707714214] [2023-12-19 15:45:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:40,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:45:40,119 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:45:40,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [402787288] [2023-12-19 15:45:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:45:40,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:45:40,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:45:40,121 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:45:40,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 15:45:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:45:40,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 15:45:40,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:45:40,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:45:40,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:45:40,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:45:40,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:45:40,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:45:40,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-12-19 15:45:40,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:40,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 36 [2023-12-19 15:45:40,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:45:40,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 15 [2023-12-19 15:45:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:45:40,486 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:45:40,739 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-19 15:45:40,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:45:40,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707714214] [2023-12-19 15:45:40,740 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:45:40,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402787288] [2023-12-19 15:45:40,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402787288] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:45:40,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:45:40,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2023-12-19 15:45:40,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497239370] [2023-12-19 15:45:40,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:45:40,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 15:45:40,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:45:40,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 15:45:40,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:45:40,741 INFO L87 Difference]: Start difference. First operand 298 states and 427 transitions. Second operand has 16 states, 14 states have (on average 5.928571428571429) internal successors, (83), 16 states have internal predecessors, (83), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 15:45:45,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:49,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:53,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:45:57,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:46:01,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-19 15:46:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:01,662 INFO L93 Difference]: Finished difference Result 770 states and 1100 transitions. [2023-12-19 15:46:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-19 15:46:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.928571428571429) internal successors, (83), 16 states have internal predecessors, (83), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 106 [2023-12-19 15:46:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:01,665 INFO L225 Difference]: With dead ends: 770 [2023-12-19 15:46:01,665 INFO L226 Difference]: Without dead ends: 455 [2023-12-19 15:46:01,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=750, Unknown=0, NotChecked=0, Total=992 [2023-12-19 15:46:01,666 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 586 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 72 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:01,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 570 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1109 Invalid, 5 Unknown, 0 Unchecked, 20.7s Time] [2023-12-19 15:46:01,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-12-19 15:46:01,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 390. [2023-12-19 15:46:01,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 333 states have (on average 1.3663663663663663) internal successors, (455), 333 states have internal predecessors, (455), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 15:46:01,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 551 transitions. [2023-12-19 15:46:01,683 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 551 transitions. Word has length 106 [2023-12-19 15:46:01,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:01,683 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 551 transitions. [2023-12-19 15:46:01,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.928571428571429) internal successors, (83), 16 states have internal predecessors, (83), 4 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-19 15:46:01,684 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 551 transitions. [2023-12-19 15:46:01,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:46:01,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:01,684 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:01,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:01,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:01,891 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:01,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:01,891 INFO L85 PathProgramCache]: Analyzing trace with hash -113534908, now seen corresponding path program 1 times [2023-12-19 15:46:01,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:01,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67465882] [2023-12-19 15:46:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:01,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:01,924 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:01,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174523981] [2023-12-19 15:46:01,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:01,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:01,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:01,942 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:01,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 15:46:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:02,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 15:46:02,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:46:02,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:02,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:02,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67465882] [2023-12-19 15:46:02,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:02,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174523981] [2023-12-19 15:46:02,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174523981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:02,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:02,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:02,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208450301] [2023-12-19 15:46:02,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:02,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:02,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:02,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:02,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:02,179 INFO L87 Difference]: Start difference. First operand 390 states and 551 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:46:02,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:02,226 INFO L93 Difference]: Finished difference Result 859 states and 1221 transitions. [2023-12-19 15:46:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:46:02,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-12-19 15:46:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:02,228 INFO L225 Difference]: With dead ends: 859 [2023-12-19 15:46:02,228 INFO L226 Difference]: Without dead ends: 470 [2023-12-19 15:46:02,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:46:02,230 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 72 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:02,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 553 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:02,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-12-19 15:46:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 402. [2023-12-19 15:46:02,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 345 states have (on average 1.3536231884057972) internal successors, (467), 345 states have internal predecessors, (467), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 15:46:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 563 transitions. [2023-12-19 15:46:02,246 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 563 transitions. Word has length 106 [2023-12-19 15:46:02,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:02,246 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 563 transitions. [2023-12-19 15:46:02,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:46:02,247 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 563 transitions. [2023-12-19 15:46:02,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-19 15:46:02,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:02,248 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:02,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:02,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 15:46:02,454 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:02,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1746649233, now seen corresponding path program 1 times [2023-12-19 15:46:02,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:02,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128560250] [2023-12-19 15:46:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:02,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:02,488 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:02,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275734643] [2023-12-19 15:46:02,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:02,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:02,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:02,489 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:02,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 15:46:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:02,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 15:46:02,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:02,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-19 15:46:02,687 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-19 15:46:02,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:02,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:02,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128560250] [2023-12-19 15:46:02,688 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:02,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275734643] [2023-12-19 15:46:02,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275734643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:02,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:02,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:02,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743283521] [2023-12-19 15:46:02,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:02,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:02,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:02,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:02,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:02,689 INFO L87 Difference]: Start difference. First operand 402 states and 563 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:46:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:02,980 INFO L93 Difference]: Finished difference Result 811 states and 1135 transitions. [2023-12-19 15:46:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:46:02,980 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 106 [2023-12-19 15:46:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:02,981 INFO L225 Difference]: With dead ends: 811 [2023-12-19 15:46:02,981 INFO L226 Difference]: Without dead ends: 409 [2023-12-19 15:46:02,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:02,983 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 156 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:02,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 677 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:46:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-12-19 15:46:02,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 394. [2023-12-19 15:46:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 337 states have (on average 1.344213649851632) internal successors, (453), 337 states have internal predecessors, (453), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 15:46:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 549 transitions. [2023-12-19 15:46:02,997 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 549 transitions. Word has length 106 [2023-12-19 15:46:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:02,997 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 549 transitions. [2023-12-19 15:46:02,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 15:46:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 549 transitions. [2023-12-19 15:46:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-19 15:46:02,998 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:02,998 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:03,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:03,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-19 15:46:03,205 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:03,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:03,205 INFO L85 PathProgramCache]: Analyzing trace with hash 842660483, now seen corresponding path program 1 times [2023-12-19 15:46:03,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:03,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700293699] [2023-12-19 15:46:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:03,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:03,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71201494] [2023-12-19 15:46:03,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:03,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:03,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:03,224 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:03,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 15:46:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:46:03,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 15:46:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:46:03,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 15:46:03,708 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 15:46:03,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:46:03,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:03,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-19 15:46:03,920 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:03,922 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:46:03,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:46:03 BoogieIcfgContainer [2023-12-19 15:46:03,985 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:46:03,986 INFO L158 Benchmark]: Toolchain (without parser) took 116866.36ms. Allocated memory was 194.0MB in the beginning and 254.8MB in the end (delta: 60.8MB). Free memory was 136.0MB in the beginning and 200.8MB in the end (delta: -64.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:46:03,986 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 194.0MB. Free memory was 140.3MB in the beginning and 140.2MB in the end (delta: 107.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:46:03,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.56ms. Allocated memory is still 194.0MB. Free memory was 135.7MB in the beginning and 120.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 15:46:03,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.21ms. Allocated memory is still 194.0MB. Free memory was 120.5MB in the beginning and 116.1MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:46:03,987 INFO L158 Benchmark]: Boogie Preprocessor took 56.52ms. Allocated memory is still 194.0MB. Free memory was 116.1MB in the beginning and 111.5MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:46:03,987 INFO L158 Benchmark]: RCFGBuilder took 549.19ms. Allocated memory is still 194.0MB. Free memory was 111.2MB in the beginning and 133.8MB in the end (delta: -22.6MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2023-12-19 15:46:03,987 INFO L158 Benchmark]: TraceAbstraction took 115929.90ms. Allocated memory was 194.0MB in the beginning and 254.8MB in the end (delta: 60.8MB). Free memory was 133.3MB in the beginning and 200.8MB in the end (delta: -67.6MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:46:03,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 194.0MB. Free memory was 140.3MB in the beginning and 140.2MB in the end (delta: 107.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 277.56ms. Allocated memory is still 194.0MB. Free memory was 135.7MB in the beginning and 120.5MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.21ms. Allocated memory is still 194.0MB. Free memory was 120.5MB in the beginning and 116.1MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.52ms. Allocated memory is still 194.0MB. Free memory was 116.1MB in the beginning and 111.5MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 549.19ms. Allocated memory is still 194.0MB. Free memory was 111.2MB in the beginning and 133.8MB in the end (delta: -22.6MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * TraceAbstraction took 115929.90ms. Allocated memory was 194.0MB in the beginning and 254.8MB in the end (delta: 60.8MB). Free memory was 133.3MB in the beginning and 200.8MB in the end (delta: -67.6MB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 104, overapproximation of bitwiseOr at line 104, overapproximation of bitwiseAnd at line 61. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 99.25, 18477, 5, 5.8, 0.5, 16, 50, 1, 256, 0 }; [L47] unsigned char last_1_WrapperStruct00_var_1_11 = 16; [L48] unsigned long int last_1_WrapperStruct00_var_1_14 = 256; [L108] isInitial = 1 [L109] FCALL initially() [L110] COND TRUE 1 [L111] CALL updateLastVariables() [L100] EXPR WrapperStruct00.var_1_11 [L100] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L101] EXPR WrapperStruct00.var_1_14 [L101] last_1_WrapperStruct00_var_1_14 = WrapperStruct00.var_1_14 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L79] WrapperStruct00.var_1_7 = __VERIFIER_nondet_short() [L80] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L80] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L80] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L81] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L81] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L81] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L82] WrapperStruct00.var_1_8 = __VERIFIER_nondet_short() [L83] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L83] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L83] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L84] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L84] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L84] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L85] WrapperStruct00.var_1_9 = __VERIFIER_nondet_float() [L86] EXPR WrapperStruct00.var_1_9 [L86] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L86] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F [L86] EXPR WrapperStruct00.var_1_9 [L86] EXPR WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L86] EXPR (WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L86] EXPR (WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L86] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L86] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L87] WrapperStruct00.var_1_10 = __VERIFIER_nondet_float() [L88] EXPR WrapperStruct00.var_1_10 [L88] EXPR WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L88] EXPR WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F [L88] EXPR WrapperStruct00.var_1_10 [L88] EXPR WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L88] EXPR (WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L88] EXPR (WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L88] CALL assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L88] RET assume_abort_if_not((WrapperStruct00.var_1_10 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L89] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L90] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L91] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L92] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L93] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L94] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L95] WrapperStruct00.var_1_15 = __VERIFIER_nondet_uchar() [L96] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L97] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L112] RET updateVariables() [L113] CALL step() [L52] EXPR WrapperStruct00.var_1_8 [L52] signed short int stepLocal_3 = WrapperStruct00.var_1_8; [L53] unsigned long int stepLocal_2 = last_1_WrapperStruct00_var_1_14; VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256, stepLocal_2=256, stepLocal_3=256] [L54] COND FALSE !(last_1_WrapperStruct00_var_1_14 > stepLocal_3) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L61] EXPR WrapperStruct00.var_1_11 [L61] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L61] EXPR WrapperStruct00.var_1_11 & WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256, stepLocal_2=256, stepLocal_3=256] [L61] EXPR WrapperStruct00.var_1_12 [L61] EXPR WrapperStruct00.var_1_11 [L61] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L61] COND FALSE !((WrapperStruct00.var_1_11 & WrapperStruct00.var_1_7) > ((WrapperStruct00.var_1_12 * last_1_WrapperStruct00_var_1_14) * (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) [L66] EXPR WrapperStruct00.var_1_7 [L66] WrapperStruct00.var_1_14 = WrapperStruct00.var_1_7 [L68] EXPR WrapperStruct00.var_1_11 [L68] unsigned char stepLocal_1 = WrapperStruct00.var_1_11; [L69] EXPR WrapperStruct00.var_1_11 [L69] EXPR WrapperStruct00.var_1_11 [L69] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L69] EXPR ((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14) [L69] EXPR WrapperStruct00.var_1_14 [L69] EXPR ((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256] [L69] EXPR WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256] [L69] unsigned long int stepLocal_0 = WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14))); [L70] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L70] COND FALSE !(stepLocal_0 != WrapperStruct00.var_1_11) [L75] WrapperStruct00.var_1_1 = 10.5f VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L113] RET step() [L114] CALL, EXPR property() [L104] EXPR WrapperStruct00.var_1_11 [L104] EXPR WrapperStruct00.var_1_11 [L104] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR ((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14) [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR ((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR ((WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14)))) != WrapperStruct00.var_1_11) ? ((WrapperStruct00.var_1_11 == (WrapperStruct00.var_1_11 - (WrapperStruct00.var_1_7 - WrapperStruct00.var_1_11))) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) : (WrapperStruct00.var_1_1 == ((float) 10.5f)) [L104] EXPR WrapperStruct00.var_1_1 [L104] EXPR ((WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14)))) != WrapperStruct00.var_1_11) ? ((WrapperStruct00.var_1_11 == (WrapperStruct00.var_1_11 - (WrapperStruct00.var_1_7 - WrapperStruct00.var_1_11))) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) : (WrapperStruct00.var_1_1 == ((float) 10.5f)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR (((WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14)))) != WrapperStruct00.var_1_11) ? ((WrapperStruct00.var_1_11 == (WrapperStruct00.var_1_11 - (WrapperStruct00.var_1_7 - WrapperStruct00.var_1_11))) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) : (WrapperStruct00.var_1_1 == ((float) 10.5f))) && ((last_1_WrapperStruct00_var_1_14 > WrapperStruct00.var_1_8) ? ((((last_1_WrapperStruct00_var_1_11 - WrapperStruct00.var_1_8) + WrapperStruct00.var_1_7) > last_1_WrapperStruct00_var_1_14) ? (WrapperStruct00.var_1_11 == ((unsigned char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) : (WrapperStruct00.var_1_11 == ((unsigned char) WrapperStruct00.var_1_12))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR (((WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14)))) != WrapperStruct00.var_1_11) ? ((WrapperStruct00.var_1_11 == (WrapperStruct00.var_1_11 - (WrapperStruct00.var_1_7 - WrapperStruct00.var_1_11))) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) : (WrapperStruct00.var_1_1 == ((float) 10.5f))) && ((last_1_WrapperStruct00_var_1_14 > WrapperStruct00.var_1_8) ? ((((last_1_WrapperStruct00_var_1_11 - WrapperStruct00.var_1_8) + WrapperStruct00.var_1_7) > last_1_WrapperStruct00_var_1_14) ? (WrapperStruct00.var_1_11 == ((unsigned char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) : (WrapperStruct00.var_1_11 == ((unsigned char) WrapperStruct00.var_1_12))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR ((((WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14)))) != WrapperStruct00.var_1_11) ? ((WrapperStruct00.var_1_11 == (WrapperStruct00.var_1_11 - (WrapperStruct00.var_1_7 - WrapperStruct00.var_1_11))) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) : (WrapperStruct00.var_1_1 == ((float) 10.5f))) && ((last_1_WrapperStruct00_var_1_14 > WrapperStruct00.var_1_8) ? ((((last_1_WrapperStruct00_var_1_11 - WrapperStruct00.var_1_8) + WrapperStruct00.var_1_7) > last_1_WrapperStruct00_var_1_14) ? (WrapperStruct00.var_1_11 == ((unsigned char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) : (WrapperStruct00.var_1_11 == ((unsigned char) WrapperStruct00.var_1_12))) : 1)) && (((WrapperStruct00.var_1_11 & WrapperStruct00.var_1_7) > ((WrapperStruct00.var_1_12 * last_1_WrapperStruct00_var_1_14) * (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) ? ((WrapperStruct00.var_1_15 && (WrapperStruct00.var_1_9 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_14 == ((unsigned long int) WrapperStruct00.var_1_7)) : 1) : (WrapperStruct00.var_1_14 == ((unsigned long int) WrapperStruct00.var_1_7))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104] EXPR ((((WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14)))) != WrapperStruct00.var_1_11) ? ((WrapperStruct00.var_1_11 == (WrapperStruct00.var_1_11 - (WrapperStruct00.var_1_7 - WrapperStruct00.var_1_11))) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) : (WrapperStruct00.var_1_1 == ((float) 10.5f))) && ((last_1_WrapperStruct00_var_1_14 > WrapperStruct00.var_1_8) ? ((((last_1_WrapperStruct00_var_1_11 - WrapperStruct00.var_1_8) + WrapperStruct00.var_1_7) > last_1_WrapperStruct00_var_1_14) ? (WrapperStruct00.var_1_11 == ((unsigned char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) : (WrapperStruct00.var_1_11 == ((unsigned char) WrapperStruct00.var_1_12))) : 1)) && (((WrapperStruct00.var_1_11 & WrapperStruct00.var_1_7) > ((WrapperStruct00.var_1_12 * last_1_WrapperStruct00_var_1_14) * (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) ? ((WrapperStruct00.var_1_15 && (WrapperStruct00.var_1_9 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_14 == ((unsigned long int) WrapperStruct00.var_1_7)) : 1) : (WrapperStruct00.var_1_14 == ((unsigned long int) WrapperStruct00.var_1_7))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L104-L105] return ((((WrapperStruct00.var_1_11 ^ ((((WrapperStruct00.var_1_11) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_14)))) != WrapperStruct00.var_1_11) ? ((WrapperStruct00.var_1_11 == (WrapperStruct00.var_1_11 - (WrapperStruct00.var_1_7 - WrapperStruct00.var_1_11))) ? (WrapperStruct00.var_1_1 == ((float) ((((WrapperStruct00.var_1_9) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_9) : (WrapperStruct00.var_1_10))))) : 1) : (WrapperStruct00.var_1_1 == ((float) 10.5f))) && ((last_1_WrapperStruct00_var_1_14 > WrapperStruct00.var_1_8) ? ((((last_1_WrapperStruct00_var_1_11 - WrapperStruct00.var_1_8) + WrapperStruct00.var_1_7) > last_1_WrapperStruct00_var_1_14) ? (WrapperStruct00.var_1_11 == ((unsigned char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_13)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_13))))) : (WrapperStruct00.var_1_11 == ((unsigned char) WrapperStruct00.var_1_12))) : 1)) && (((WrapperStruct00.var_1_11 & WrapperStruct00.var_1_7) > ((WrapperStruct00.var_1_12 * last_1_WrapperStruct00_var_1_14) * (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_11))) ? ((WrapperStruct00.var_1_15 && (WrapperStruct00.var_1_9 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_14 == ((unsigned long int) WrapperStruct00.var_1_7)) : 1) : (WrapperStruct00.var_1_14 == ((unsigned long int) WrapperStruct00.var_1_7))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_11=16, last_1_WrapperStruct00_var_1_14=256] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 115.8s, OverallIterations: 17, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 106.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 mSolverCounterUnknown, 2964 SdHoareTripleChecker+Valid, 104.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2952 mSDsluCounter, 7388 SdHoareTripleChecker+Invalid, 104.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5389 mSDsCounter, 213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6107 IncrementalHoareTripleChecker+Invalid, 6345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 213 mSolverCounterUnsat, 1999 mSDtfsCounter, 6107 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1922 GetRequests, 1783 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=10, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 1000 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1877 NumberOfCodeBlocks, 1877 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1859 ConstructedInterpolants, 0 QuantifiedInterpolants, 7299 SizeOfPredicates, 95 NumberOfNonLiveVariables, 5825 ConjunctsInSsa, 243 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 4620/4752 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: unable to determine feasibility of some traces [2023-12-19 15:46:04,033 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 Received shutdown request...