/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-37.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:40:13,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:40:13,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:40:13,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:40:13,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:40:13,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:40:13,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:40:13,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:40:13,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:40:13,359 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:40:13,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:40:13,362 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:40:13,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:40:13,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:40:13,365 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:40:13,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:40:13,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:40:13,367 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:40:13,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:40:13,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:40:13,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:40:13,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:40:13,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:40:13,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:40:13,369 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:40:13,369 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:40:13,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:40:13,369 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:40:13,370 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:40:13,370 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:40:13,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:40:13,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:40:13,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:40:13,371 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:40:13,371 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:40:13,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:40:13,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:40:13,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:40:13,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:40:13,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:40:13,372 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:40:13,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:40:13,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:40:13,372 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:40:13,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:40:13,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:40:13,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:40:13,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:40:13,641 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:40:13,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-37.i [2023-12-15 21:40:14,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:40:15,140 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:40:15,141 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-37.i [2023-12-15 21:40:15,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2090c00c/9b46af4f2b73456089af4a7c4ed16cbd/FLAGa411b3f82 [2023-12-15 21:40:15,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2090c00c/9b46af4f2b73456089af4a7c4ed16cbd [2023-12-15 21:40:15,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:40:15,165 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:40:15,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:40:15,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:40:15,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:40:15,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7971d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15, skipping insertion in model container [2023-12-15 21:40:15,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:40:15,327 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-37.i[916,929] [2023-12-15 21:40:15,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:40:15,427 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:40:15,452 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-37.i[916,929] [2023-12-15 21:40:15,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:40:15,555 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:40:15,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15 WrapperNode [2023-12-15 21:40:15,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:40:15,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:40:15,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:40:15,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:40:15,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,656 INFO L138 Inliner]: procedures = 29, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 474 [2023-12-15 21:40:15,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:40:15,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:40:15,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:40:15,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:40:15,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,706 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 17 writes are split as follows [0, 17]. [2023-12-15 21:40:15,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:40:15,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:40:15,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:40:15,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:40:15,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (1/1) ... [2023-12-15 21:40:15,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:40:15,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:15,876 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) [2023-12-15 21:40:15,898 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 [2023-12-15 21:40:15,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:40:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-15 21:40:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-15 21:40:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:40:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:40:15,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-15 21:40:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-15 21:40:15,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:40:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:40:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-15 21:40:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-15 21:40:15,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:40:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:40:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:40:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:40:15,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:40:15,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:40:16,030 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:40:16,032 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:40:16,412 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:40:16,448 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:40:16,448 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:40:16,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:40:16 BoogieIcfgContainer [2023-12-15 21:40:16,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:40:16,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:40:16,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:40:16,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:40:16,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:40:15" (1/3) ... [2023-12-15 21:40:16,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4004e608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:40:16, skipping insertion in model container [2023-12-15 21:40:16,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:40:15" (2/3) ... [2023-12-15 21:40:16,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4004e608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:40:16, skipping insertion in model container [2023-12-15 21:40:16,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:40:16" (3/3) ... [2023-12-15 21:40:16,455 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-37.i [2023-12-15 21:40:16,471 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:40:16,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:40:16,518 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:40:16,526 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;@31daef6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:40:16,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:40:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 79 states have internal predecessors, (115), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 21:40:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 21:40:16,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:16,543 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:16,543 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:16,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:16,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1861289513, now seen corresponding path program 1 times [2023-12-15 21:40:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:16,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686800503] [2023-12-15 21:40:16,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:16,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:16,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:16,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686800503] [2023-12-15 21:40:16,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:40:16,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575528246] [2023-12-15 21:40:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:16,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:16,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:16,725 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) [2023-12-15 21:40:16,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:40:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:16,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:40:16,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-12-15 21:40:16,907 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:16,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575528246] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:16,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:16,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:40:16,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734294298] [2023-12-15 21:40:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:16,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:40:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:16,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:40:16,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:40:16,935 INFO L87 Difference]: Start difference. First operand has 96 states, 78 states have (on average 1.4743589743589745) internal successors, (115), 79 states have internal predecessors, (115), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-15 21:40:16,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:16,973 INFO L93 Difference]: Finished difference Result 189 states and 303 transitions. [2023-12-15 21:40:16,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:40:16,975 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2023-12-15 21:40:16,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:16,982 INFO L225 Difference]: With dead ends: 189 [2023-12-15 21:40:16,982 INFO L226 Difference]: Without dead ends: 94 [2023-12-15 21:40:16,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:40:16,987 INFO L413 NwaCegarLoop]: 136 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, 136 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 [2023-12-15 21:40:16,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:40:16,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-15 21:40:17,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-12-15 21:40:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.4285714285714286) internal successors, (110), 77 states have internal predecessors, (110), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 21:40:17,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 140 transitions. [2023-12-15 21:40:17,026 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 140 transitions. Word has length 119 [2023-12-15 21:40:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:17,026 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 140 transitions. [2023-12-15 21:40:17,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-15 21:40:17,027 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 140 transitions. [2023-12-15 21:40:17,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 21:40:17,029 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:17,029 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:17,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 21:40:17,234 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 [2023-12-15 21:40:17,235 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:17,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash -851775575, now seen corresponding path program 1 times [2023-12-15 21:40:17,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:17,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848207015] [2023-12-15 21:40:17,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:17,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:17,326 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:17,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895645574] [2023-12-15 21:40:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:17,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:17,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:17,333 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) [2023-12-15 21:40:17,334 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:40:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:17,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:40:17,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:17,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:17,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:17,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848207015] [2023-12-15 21:40:17,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:17,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895645574] [2023-12-15 21:40:17,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895645574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:17,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:17,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:40:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122412869] [2023-12-15 21:40:17,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:17,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:40:17,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:40:17,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:40:17,555 INFO L87 Difference]: Start difference. First operand 94 states and 140 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:17,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:17,593 INFO L93 Difference]: Finished difference Result 199 states and 296 transitions. [2023-12-15 21:40:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:40:17,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-15 21:40:17,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:17,595 INFO L225 Difference]: With dead ends: 199 [2023-12-15 21:40:17,595 INFO L226 Difference]: Without dead ends: 106 [2023-12-15 21:40:17,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:40:17,596 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 21 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 399 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 [2023-12-15 21:40:17,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 399 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:40:17,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-15 21:40:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2023-12-15 21:40:17,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.4177215189873418) internal successors, (112), 79 states have internal predecessors, (112), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 21:40:17,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 142 transitions. [2023-12-15 21:40:17,604 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 142 transitions. Word has length 119 [2023-12-15 21:40:17,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:17,605 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 142 transitions. [2023-12-15 21:40:17,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:17,605 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 142 transitions. [2023-12-15 21:40:17,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 21:40:17,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:17,606 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:17,626 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:17,826 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 [2023-12-15 21:40:17,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:17,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1661122201, now seen corresponding path program 1 times [2023-12-15 21:40:17,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:17,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098460729] [2023-12-15 21:40:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:17,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:17,862 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:17,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614359659] [2023-12-15 21:40:17,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:17,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:17,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:17,864 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) [2023-12-15 21:40:17,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:40:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:18,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:40:18,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:18,024 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:18,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098460729] [2023-12-15 21:40:18,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:18,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614359659] [2023-12-15 21:40:18,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614359659] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:18,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:18,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:40:18,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940569357] [2023-12-15 21:40:18,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:18,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:40:18,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:18,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:40:18,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:40:18,026 INFO L87 Difference]: Start difference. First operand 96 states and 142 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:18,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:18,078 INFO L93 Difference]: Finished difference Result 199 states and 294 transitions. [2023-12-15 21:40:18,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:40:18,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-15 21:40:18,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:18,080 INFO L225 Difference]: With dead ends: 199 [2023-12-15 21:40:18,080 INFO L226 Difference]: Without dead ends: 104 [2023-12-15 21:40:18,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:40:18,082 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 12 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:18,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 397 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:40:18,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-15 21:40:18,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-12-15 21:40:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 81 states have internal predecessors, (114), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 21:40:18,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 144 transitions. [2023-12-15 21:40:18,089 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 144 transitions. Word has length 119 [2023-12-15 21:40:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:18,089 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 144 transitions. [2023-12-15 21:40:18,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:18,090 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 144 transitions. [2023-12-15 21:40:18,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 21:40:18,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:18,091 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:18,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:18,297 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 [2023-12-15 21:40:18,298 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:18,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:18,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1603863899, now seen corresponding path program 1 times [2023-12-15 21:40:18,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:18,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527270372] [2023-12-15 21:40:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:18,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:18,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:18,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474018058] [2023-12-15 21:40:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:18,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:18,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:18,361 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) [2023-12-15 21:40:18,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:40:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:18,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:40:18,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:18,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:18,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:18,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527270372] [2023-12-15 21:40:18,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:18,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474018058] [2023-12-15 21:40:18,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474018058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:18,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:18,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:40:18,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908755365] [2023-12-15 21:40:18,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:18,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:40:18,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:18,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:40:18,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:40:18,540 INFO L87 Difference]: Start difference. First operand 98 states and 144 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:18,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:18,576 INFO L93 Difference]: Finished difference Result 199 states and 292 transitions. [2023-12-15 21:40:18,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:40:18,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-15 21:40:18,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:18,578 INFO L225 Difference]: With dead ends: 199 [2023-12-15 21:40:18,578 INFO L226 Difference]: Without dead ends: 102 [2023-12-15 21:40:18,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:40:18,584 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 3 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:18,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 397 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:40:18,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-15 21:40:18,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2023-12-15 21:40:18,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 83 states have internal predecessors, (116), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-15 21:40:18,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 146 transitions. [2023-12-15 21:40:18,597 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 146 transitions. Word has length 119 [2023-12-15 21:40:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:18,597 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 146 transitions. [2023-12-15 21:40:18,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:18,598 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 146 transitions. [2023-12-15 21:40:18,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 21:40:18,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:18,599 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:18,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:18,828 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 [2023-12-15 21:40:18,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:18,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:18,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1603804317, now seen corresponding path program 1 times [2023-12-15 21:40:18,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:18,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164123823] [2023-12-15 21:40:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:18,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:18,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:18,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352058831] [2023-12-15 21:40:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:18,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:18,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:18,896 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) [2023-12-15 21:40:18,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:40:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:19,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-15 21:40:19,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:19,076 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 17 treesize of output 17 [2023-12-15 21:40:19,109 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 121 treesize of output 89 [2023-12-15 21:40:19,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:19,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 119 [2023-12-15 21:40:19,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 52 [2023-12-15 21:40:19,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:19,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 164 treesize of output 64 [2023-12-15 21:40:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-15 21:40:19,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:19,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:19,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164123823] [2023-12-15 21:40:19,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:19,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352058831] [2023-12-15 21:40:19,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352058831] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:40:19,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:40:19,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2023-12-15 21:40:19,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127080895] [2023-12-15 21:40:19,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:19,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:40:19,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:19,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:40:19,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:40:19,469 INFO L87 Difference]: Start difference. First operand 100 states and 146 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:19,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:19,624 INFO L93 Difference]: Finished difference Result 212 states and 307 transitions. [2023-12-15 21:40:19,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:40:19,624 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-15 21:40:19,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:19,625 INFO L225 Difference]: With dead ends: 212 [2023-12-15 21:40:19,625 INFO L226 Difference]: Without dead ends: 113 [2023-12-15 21:40:19,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:40:19,626 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 117 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:19,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 356 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:40:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-15 21:40:19,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2023-12-15 21:40:19,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 91 states have internal predecessors, (122), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-15 21:40:19,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 160 transitions. [2023-12-15 21:40:19,633 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 160 transitions. Word has length 119 [2023-12-15 21:40:19,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:19,634 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 160 transitions. [2023-12-15 21:40:19,634 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, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 160 transitions. [2023-12-15 21:40:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 21:40:19,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:19,635 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:19,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:19,841 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 [2023-12-15 21:40:19,841 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:19,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:19,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1485161256, now seen corresponding path program 1 times [2023-12-15 21:40:19,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:19,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622843019] [2023-12-15 21:40:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:19,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:19,865 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:19,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761498374] [2023-12-15 21:40:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:19,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:19,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:19,866 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) [2023-12-15 21:40:19,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 21:40:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:20,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 21:40:20,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:20,077 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 157 treesize of output 119 [2023-12-15 21:40:20,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:20,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 119 treesize of output 139 [2023-12-15 21:40:20,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 92 [2023-12-15 21:40:20,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:20,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 171 treesize of output 119 [2023-12-15 21:40:20,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:20,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 182 treesize of output 122 [2023-12-15 21:40:20,324 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 274 treesize of output 210 [2023-12-15 21:40:20,330 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:20,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 210 treesize of output 220 [2023-12-15 21:40:20,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 264 treesize of output 191 [2023-12-15 21:40:20,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:20,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 435 treesize of output 153 [2023-12-15 21:40:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:20,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:20,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:20,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622843019] [2023-12-15 21:40:20,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:20,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761498374] [2023-12-15 21:40:20,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761498374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:20,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:20,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:40:20,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151423167] [2023-12-15 21:40:20,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:20,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:40:20,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:20,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:40:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:40:20,840 INFO L87 Difference]: Start difference. First operand 112 states and 160 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:21,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:21,585 INFO L93 Difference]: Finished difference Result 485 states and 681 transitions. [2023-12-15 21:40:21,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 21:40:21,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2023-12-15 21:40:21,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:21,588 INFO L225 Difference]: With dead ends: 485 [2023-12-15 21:40:21,588 INFO L226 Difference]: Without dead ends: 382 [2023-12-15 21:40:21,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:40:21,589 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 423 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:21,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 620 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 21:40:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-12-15 21:40:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 285. [2023-12-15 21:40:21,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 238 states have (on average 1.3697478991596639) internal successors, (326), 241 states have internal predecessors, (326), 40 states have call successors, (40), 6 states have call predecessors, (40), 6 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2023-12-15 21:40:21,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 406 transitions. [2023-12-15 21:40:21,617 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 406 transitions. Word has length 122 [2023-12-15 21:40:21,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:21,618 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 406 transitions. [2023-12-15 21:40:21,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:21,618 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 406 transitions. [2023-12-15 21:40:21,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 21:40:21,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:21,620 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:21,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:21,826 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 [2023-12-15 21:40:21,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:21,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:21,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1798688790, now seen corresponding path program 1 times [2023-12-15 21:40:21,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:21,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667432727] [2023-12-15 21:40:21,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:21,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:21,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:21,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569966978] [2023-12-15 21:40:21,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:21,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:21,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:21,874 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) [2023-12-15 21:40:21,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 21:40:22,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:22,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-15 21:40:22,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:22,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-15 21:40:22,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-15 21:40:22,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-15 21:40:22,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:22,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2023-12-15 21:40:22,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:22,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2023-12-15 21:40:22,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:22,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2023-12-15 21:40:22,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:22,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 23 [2023-12-15 21:40:22,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:22,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 30 [2023-12-15 21:40:22,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:22,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 18 [2023-12-15 21:40:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 194 proven. 42 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-12-15 21:40:22,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-15 21:40:22,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:22,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667432727] [2023-12-15 21:40:22,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:22,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569966978] [2023-12-15 21:40:22,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569966978] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:40:22,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:40:22,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-12-15 21:40:22,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676982584] [2023-12-15 21:40:22,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:40:22,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-15 21:40:22,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-15 21:40:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-12-15 21:40:22,691 INFO L87 Difference]: Start difference. First operand 285 states and 406 transitions. Second operand has 19 states, 17 states have (on average 5.0) internal successors, (85), 19 states have internal predecessors, (85), 6 states have call successors, (30), 4 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-15 21:40:23,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:23,143 INFO L93 Difference]: Finished difference Result 519 states and 722 transitions. [2023-12-15 21:40:23,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-15 21:40:23,143 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.0) internal successors, (85), 19 states have internal predecessors, (85), 6 states have call successors, (30), 4 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) Word has length 122 [2023-12-15 21:40:23,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:23,145 INFO L225 Difference]: With dead ends: 519 [2023-12-15 21:40:23,145 INFO L226 Difference]: Without dead ends: 243 [2023-12-15 21:40:23,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2023-12-15 21:40:23,147 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 309 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:23,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 364 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 21:40:23,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-15 21:40:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 204. [2023-12-15 21:40:23,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 172 states have internal predecessors, (228), 25 states have call successors, (25), 8 states have call predecessors, (25), 8 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-15 21:40:23,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 278 transitions. [2023-12-15 21:40:23,174 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 278 transitions. Word has length 122 [2023-12-15 21:40:23,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:23,174 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 278 transitions. [2023-12-15 21:40:23,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.0) internal successors, (85), 19 states have internal predecessors, (85), 6 states have call successors, (30), 4 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-15 21:40:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 278 transitions. [2023-12-15 21:40:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 21:40:23,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:23,175 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:23,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:23,382 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 [2023-12-15 21:40:23,382 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:23,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:23,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1939237400, now seen corresponding path program 1 times [2023-12-15 21:40:23,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:23,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500331638] [2023-12-15 21:40:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:23,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:23,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:23,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010885032] [2023-12-15 21:40:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:23,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:23,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:23,427 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) [2023-12-15 21:40:23,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 21:40:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:23,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-15 21:40:23,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:23,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:23,655 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 39 treesize of output 44 [2023-12-15 21:40:23,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:23,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 65 [2023-12-15 21:40:23,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:23,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 68 [2023-12-15 21:40:23,742 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 157 treesize of output 117 [2023-12-15 21:40:23,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:23,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 21 case distinctions, treesize of input 117 treesize of output 175 [2023-12-15 21:40:23,844 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:23,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 121 treesize of output 109 [2023-12-15 21:40:24,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:24,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 210 treesize of output 66 [2023-12-15 21:40:24,078 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:24,078 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:24,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:24,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500331638] [2023-12-15 21:40:24,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:24,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010885032] [2023-12-15 21:40:24,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010885032] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:24,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:24,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 21:40:24,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493181885] [2023-12-15 21:40:24,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:24,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 21:40:24,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:24,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 21:40:24,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:40:24,080 INFO L87 Difference]: Start difference. First operand 204 states and 278 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:24,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:24,417 INFO L93 Difference]: Finished difference Result 495 states and 674 transitions. [2023-12-15 21:40:24,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 21:40:24,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2023-12-15 21:40:24,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:24,418 INFO L225 Difference]: With dead ends: 495 [2023-12-15 21:40:24,418 INFO L226 Difference]: Without dead ends: 304 [2023-12-15 21:40:24,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:40:24,419 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 320 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:24,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 528 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 21:40:24,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-15 21:40:24,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 213. [2023-12-15 21:40:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 179 states have (on average 1.3463687150837989) internal successors, (241), 181 states have internal predecessors, (241), 25 states have call successors, (25), 8 states have call predecessors, (25), 8 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-15 21:40:24,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 291 transitions. [2023-12-15 21:40:24,427 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 291 transitions. Word has length 122 [2023-12-15 21:40:24,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:24,427 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 291 transitions. [2023-12-15 21:40:24,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:24,428 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 291 transitions. [2023-12-15 21:40:24,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 21:40:24,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:24,429 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:24,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:24,634 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 [2023-12-15 21:40:24,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:24,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:24,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1352431386, now seen corresponding path program 1 times [2023-12-15 21:40:24,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:24,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638315669] [2023-12-15 21:40:24,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:24,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:24,670 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:24,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733581077] [2023-12-15 21:40:24,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:24,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:24,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:24,679 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) [2023-12-15 21:40:24,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 21:40:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:24,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-15 21:40:24,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:24,901 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 19 treesize of output 19 [2023-12-15 21:40:24,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:24,909 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 35 treesize of output 40 [2023-12-15 21:40:24,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:24,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 46 treesize of output 43 [2023-12-15 21:40:24,933 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 138 treesize of output 102 [2023-12-15 21:40:24,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:24,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 140 [2023-12-15 21:40:24,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 60 [2023-12-15 21:40:25,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:25,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 194 treesize of output 62 [2023-12-15 21:40:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-15 21:40:25,153 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:25,226 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:25,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:25,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638315669] [2023-12-15 21:40:25,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:25,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733581077] [2023-12-15 21:40:25,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733581077] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:40:25,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:40:25,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 11 [2023-12-15 21:40:25,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469870193] [2023-12-15 21:40:25,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:25,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:40:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:40:25,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:40:25,228 INFO L87 Difference]: Start difference. First operand 213 states and 291 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:25,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:25,435 INFO L93 Difference]: Finished difference Result 558 states and 763 transitions. [2023-12-15 21:40:25,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 21:40:25,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2023-12-15 21:40:25,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:25,436 INFO L225 Difference]: With dead ends: 558 [2023-12-15 21:40:25,436 INFO L226 Difference]: Without dead ends: 358 [2023-12-15 21:40:25,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-12-15 21:40:25,437 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 215 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:25,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 641 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:40:25,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-15 21:40:25,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 251. [2023-12-15 21:40:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 212 states have (on average 1.3632075471698113) internal successors, (289), 214 states have internal predecessors, (289), 29 states have call successors, (29), 9 states have call predecessors, (29), 9 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 21:40:25,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 347 transitions. [2023-12-15 21:40:25,447 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 347 transitions. Word has length 122 [2023-12-15 21:40:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:25,447 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 347 transitions. [2023-12-15 21:40:25,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 347 transitions. [2023-12-15 21:40:25,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 21:40:25,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:25,448 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:25,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:25,654 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 [2023-12-15 21:40:25,654 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:25,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:25,655 INFO L85 PathProgramCache]: Analyzing trace with hash 886578006, now seen corresponding path program 1 times [2023-12-15 21:40:25,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:25,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947150898] [2023-12-15 21:40:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:25,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:25,673 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:25,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647351087] [2023-12-15 21:40:25,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:25,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:25,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:25,675 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) [2023-12-15 21:40:25,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 21:40:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:25,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-15 21:40:25,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:25,943 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 [2023-12-15 21:40:25,962 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 [2023-12-15 21:40:25,980 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 [2023-12-15 21:40:25,997 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 [2023-12-15 21:40:26,038 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 [2023-12-15 21:40:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 218 proven. 24 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2023-12-15 21:40:26,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:26,165 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-15 21:40:26,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:26,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947150898] [2023-12-15 21:40:26,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:26,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647351087] [2023-12-15 21:40:26,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647351087] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:40:26,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:40:26,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-15 21:40:26,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545798672] [2023-12-15 21:40:26,166 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:40:26,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 21:40:26,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 21:40:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:40:26,167 INFO L87 Difference]: Start difference. First operand 251 states and 347 transitions. Second operand has 10 states, 8 states have (on average 7.5) internal successors, (60), 10 states have internal predecessors, (60), 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) [2023-12-15 21:40:26,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:26,418 INFO L93 Difference]: Finished difference Result 410 states and 552 transitions. [2023-12-15 21:40:26,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 21:40:26,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.5) internal successors, (60), 10 states have internal predecessors, (60), 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 122 [2023-12-15 21:40:26,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:26,419 INFO L225 Difference]: With dead ends: 410 [2023-12-15 21:40:26,419 INFO L226 Difference]: Without dead ends: 172 [2023-12-15 21:40:26,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 229 SyntacticMatches, 5 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-12-15 21:40:26,420 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 92 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:26,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 250 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:40:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-15 21:40:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 164. [2023-12-15 21:40:26,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 129 states have (on average 1.255813953488372) internal successors, (162), 130 states have internal predecessors, (162), 25 states have call successors, (25), 9 states have call predecessors, (25), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-15 21:40:26,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 212 transitions. [2023-12-15 21:40:26,427 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 212 transitions. Word has length 122 [2023-12-15 21:40:26,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:26,427 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 212 transitions. [2023-12-15 21:40:26,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.5) internal successors, (60), 10 states have internal predecessors, (60), 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) [2023-12-15 21:40:26,428 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 212 transitions. [2023-12-15 21:40:26,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-15 21:40:26,428 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:26,428 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:26,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:26,634 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 [2023-12-15 21:40:26,634 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:26,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:26,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1980892997, now seen corresponding path program 1 times [2023-12-15 21:40:26,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:26,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669331784] [2023-12-15 21:40:26,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:26,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:26,657 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:26,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516613994] [2023-12-15 21:40:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:26,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:26,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:26,659 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) [2023-12-15 21:40:26,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-15 21:40:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:26,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-15 21:40:26,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:26,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:26,848 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 19 treesize of output 7 [2023-12-15 21:40:26,860 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 92 treesize of output 56 [2023-12-15 21:40:26,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:26,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 96 treesize of output 74 [2023-12-15 21:40:26,938 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:26,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 111 treesize of output 86 [2023-12-15 21:40:26,993 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:26,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 122 treesize of output 89 [2023-12-15 21:40:27,029 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 214 treesize of output 162 [2023-12-15 21:40:27,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:27,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 162 treesize of output 182 [2023-12-15 21:40:27,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:27,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 164 treesize of output 124 [2023-12-15 21:40:28,386 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:28,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 435 treesize of output 159 [2023-12-15 21:40:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 3 proven. 39 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-15 21:40:28,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:28,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:28,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669331784] [2023-12-15 21:40:28,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:28,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516613994] [2023-12-15 21:40:28,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516613994] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:40:28,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:40:28,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 20 [2023-12-15 21:40:28,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268652403] [2023-12-15 21:40:28,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:28,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 21:40:28,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:28,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 21:40:28,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2023-12-15 21:40:28,988 INFO L87 Difference]: Start difference. First operand 164 states and 212 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:30,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:30,090 INFO L93 Difference]: Finished difference Result 221 states and 295 transitions. [2023-12-15 21:40:30,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-15 21:40:30,091 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-12-15 21:40:30,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:30,092 INFO L225 Difference]: With dead ends: 221 [2023-12-15 21:40:30,092 INFO L226 Difference]: Without dead ends: 219 [2023-12-15 21:40:30,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2023-12-15 21:40:30,092 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 223 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:30,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 444 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 21:40:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-12-15 21:40:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 166. [2023-12-15 21:40:30,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 131 states have (on average 1.251908396946565) internal successors, (164), 132 states have internal predecessors, (164), 25 states have call successors, (25), 9 states have call predecessors, (25), 9 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-15 21:40:30,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 214 transitions. [2023-12-15 21:40:30,110 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 214 transitions. Word has length 124 [2023-12-15 21:40:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:30,110 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 214 transitions. [2023-12-15 21:40:30,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 10 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:30,111 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 214 transitions. [2023-12-15 21:40:30,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-15 21:40:30,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:30,111 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:30,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-15 21:40:30,317 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 [2023-12-15 21:40:30,318 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:30,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:30,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1980952579, now seen corresponding path program 1 times [2023-12-15 21:40:30,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:30,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200236671] [2023-12-15 21:40:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:30,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:30,349 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:30,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868821411] [2023-12-15 21:40:30,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:30,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:30,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:30,365 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) [2023-12-15 21:40:30,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-15 21:40:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:30,583 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-15 21:40:30,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:30,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:30,589 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 19 treesize of output 7 [2023-12-15 21:40:30,593 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 19 treesize of output 19 [2023-12-15 21:40:30,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:30,608 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 31 treesize of output 22 [2023-12-15 21:40:30,620 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 123 treesize of output 91 [2023-12-15 21:40:30,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:30,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 123 [2023-12-15 21:40:30,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 75 [2023-12-15 21:40:30,881 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:30,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 161 treesize of output 53 [2023-12-15 21:40:30,892 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:30,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:30,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:30,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200236671] [2023-12-15 21:40:30,892 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:30,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868821411] [2023-12-15 21:40:30,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868821411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:30,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:30,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:40:30,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551701112] [2023-12-15 21:40:30,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:30,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:40:30,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:30,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:40:30,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:40:30,908 INFO L87 Difference]: Start difference. First operand 166 states and 214 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:31,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:31,210 INFO L93 Difference]: Finished difference Result 376 states and 484 transitions. [2023-12-15 21:40:31,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:40:31,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-12-15 21:40:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:31,212 INFO L225 Difference]: With dead ends: 376 [2023-12-15 21:40:31,212 INFO L226 Difference]: Without dead ends: 243 [2023-12-15 21:40:31,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:40:31,212 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 173 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:31,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 517 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:40:31,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-12-15 21:40:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 185. [2023-12-15 21:40:31,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 145 states have internal predecessors, (179), 30 states have call successors, (30), 10 states have call predecessors, (30), 10 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:40:31,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 239 transitions. [2023-12-15 21:40:31,226 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 239 transitions. Word has length 124 [2023-12-15 21:40:31,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:31,226 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 239 transitions. [2023-12-15 21:40:31,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:31,226 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 239 transitions. [2023-12-15 21:40:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-15 21:40:31,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:31,227 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:31,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:31,433 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 [2023-12-15 21:40:31,433 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:31,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:31,433 INFO L85 PathProgramCache]: Analyzing trace with hash 2038210881, now seen corresponding path program 1 times [2023-12-15 21:40:31,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:31,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358362762] [2023-12-15 21:40:31,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:31,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:31,457 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:31,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654823522] [2023-12-15 21:40:31,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:31,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:31,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:31,459 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) [2023-12-15 21:40:31,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-15 21:40:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:31,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-15 21:40:31,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:31,715 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 30 treesize of output 19 [2023-12-15 21:40:31,724 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:31,724 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 35 treesize of output 40 [2023-12-15 21:40:31,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:31,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 61 [2023-12-15 21:40:31,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:31,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 64 [2023-12-15 21:40:31,774 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 153 treesize of output 113 [2023-12-15 21:40:31,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:31,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 157 [2023-12-15 21:40:31,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 105 [2023-12-15 21:40:32,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:32,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 221 treesize of output 65 [2023-12-15 21:40:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:32,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:32,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358362762] [2023-12-15 21:40:32,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654823522] [2023-12-15 21:40:32,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654823522] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:32,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:32,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:40:32,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634678089] [2023-12-15 21:40:32,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:32,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:40:32,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:32,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:40:32,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:40:32,150 INFO L87 Difference]: Start difference. First operand 185 states and 239 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:32,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:32,511 INFO L93 Difference]: Finished difference Result 375 states and 480 transitions. [2023-12-15 21:40:32,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 21:40:32,511 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-12-15 21:40:32,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:32,513 INFO L225 Difference]: With dead ends: 375 [2023-12-15 21:40:32,513 INFO L226 Difference]: Without dead ends: 242 [2023-12-15 21:40:32,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:40:32,519 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 316 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:32,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 391 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 21:40:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-15 21:40:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 185. [2023-12-15 21:40:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 144 states have (on average 1.2361111111111112) internal successors, (178), 145 states have internal predecessors, (178), 30 states have call successors, (30), 10 states have call predecessors, (30), 10 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:40:32,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 238 transitions. [2023-12-15 21:40:32,534 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 238 transitions. Word has length 124 [2023-12-15 21:40:32,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:32,534 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 238 transitions. [2023-12-15 21:40:32,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:32,535 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 238 transitions. [2023-12-15 21:40:32,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-15 21:40:32,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:32,536 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:32,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:32,741 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 [2023-12-15 21:40:32,741 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:32,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:32,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1228864255, now seen corresponding path program 1 times [2023-12-15 21:40:32,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:32,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63304355] [2023-12-15 21:40:32,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:32,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:32,760 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:32,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398727715] [2023-12-15 21:40:32,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:32,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:32,761 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) [2023-12-15 21:40:32,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-15 21:40:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:33,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 65 conjunts are in the unsatisfiable core [2023-12-15 21:40:33,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:33,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,218 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 28 treesize of output 10 [2023-12-15 21:40:33,249 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 [2023-12-15 21:40:33,373 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 [2023-12-15 21:40:33,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 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 [2023-12-15 21:40:33,566 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,566 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 58 treesize of output 33 [2023-12-15 21:40:33,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,612 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 58 treesize of output 33 [2023-12-15 21:40:33,679 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,680 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 69 treesize of output 42 [2023-12-15 21:40:33,723 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,723 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 73 treesize of output 54 [2023-12-15 21:40:33,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 88 treesize of output 75 [2023-12-15 21:40:33,815 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 99 treesize of output 78 [2023-12-15 21:40:33,860 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 191 treesize of output 143 [2023-12-15 21:40:33,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:33,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 143 treesize of output 171 [2023-12-15 21:40:33,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 99 [2023-12-15 21:40:34,453 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:34,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 513 treesize of output 189 [2023-12-15 21:40:34,517 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 283 proven. 75 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-15 21:40:34,517 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:34,709 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:34,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:34,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63304355] [2023-12-15 21:40:34,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:34,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398727715] [2023-12-15 21:40:34,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398727715] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:40:34,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:40:34,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [25] total 27 [2023-12-15 21:40:34,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845801628] [2023-12-15 21:40:34,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:34,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:40:34,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:34,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:40:34,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2023-12-15 21:40:34,711 INFO L87 Difference]: Start difference. First operand 185 states and 238 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:34,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:34,927 INFO L93 Difference]: Finished difference Result 383 states and 486 transitions. [2023-12-15 21:40:34,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:40:34,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-12-15 21:40:34,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:34,928 INFO L225 Difference]: With dead ends: 383 [2023-12-15 21:40:34,929 INFO L226 Difference]: Without dead ends: 250 [2023-12-15 21:40:34,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=140, Invalid=730, Unknown=0, NotChecked=0, Total=870 [2023-12-15 21:40:34,929 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 111 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:34,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 591 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:40:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-15 21:40:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 192. [2023-12-15 21:40:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 151 states have (on average 1.2317880794701987) internal successors, (186), 152 states have internal predecessors, (186), 30 states have call successors, (30), 10 states have call predecessors, (30), 10 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:40:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 246 transitions. [2023-12-15 21:40:34,943 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 246 transitions. Word has length 124 [2023-12-15 21:40:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:34,944 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 246 transitions. [2023-12-15 21:40:34,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 246 transitions. [2023-12-15 21:40:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-15 21:40:34,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:34,945 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:34,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:35,152 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 [2023-12-15 21:40:35,152 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:35,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1061401433, now seen corresponding path program 1 times [2023-12-15 21:40:35,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:35,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517688751] [2023-12-15 21:40:35,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:35,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:35,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:35,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993112011] [2023-12-15 21:40:35,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:35,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:35,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:35,186 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) [2023-12-15 21:40:35,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-15 21:40:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:35,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-15 21:40:35,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:35,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:35,434 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 39 treesize of output 44 [2023-12-15 21:40:35,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:35,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 65 [2023-12-15 21:40:35,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:35,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 65 treesize of output 68 [2023-12-15 21:40:35,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:35,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 68 treesize of output 20 [2023-12-15 21:40:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:35,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517688751] [2023-12-15 21:40:35,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993112011] [2023-12-15 21:40:35,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993112011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:35,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:35,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:40:35,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819678051] [2023-12-15 21:40:35,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:35,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:40:35,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:35,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:40:35,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:40:35,538 INFO L87 Difference]: Start difference. First operand 192 states and 246 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:35,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:35,734 INFO L93 Difference]: Finished difference Result 327 states and 420 transitions. [2023-12-15 21:40:35,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:40:35,735 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2023-12-15 21:40:35,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:35,735 INFO L225 Difference]: With dead ends: 327 [2023-12-15 21:40:35,735 INFO L226 Difference]: Without dead ends: 187 [2023-12-15 21:40:35,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:40:35,736 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 121 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:35,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 414 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:40:35,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-15 21:40:35,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-12-15 21:40:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 146 states have (on average 1.226027397260274) internal successors, (179), 147 states have internal predecessors, (179), 30 states have call successors, (30), 10 states have call predecessors, (30), 10 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:40:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 239 transitions. [2023-12-15 21:40:35,750 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 239 transitions. Word has length 124 [2023-12-15 21:40:35,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:35,750 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 239 transitions. [2023-12-15 21:40:35,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:35,750 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 239 transitions. [2023-12-15 21:40:35,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-15 21:40:35,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:35,751 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:35,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:35,957 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 [2023-12-15 21:40:35,957 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:35,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:35,958 INFO L85 PathProgramCache]: Analyzing trace with hash -557910016, now seen corresponding path program 1 times [2023-12-15 21:40:35,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:35,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244254156] [2023-12-15 21:40:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:35,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:35,994 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:35,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [662510731] [2023-12-15 21:40:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:35,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:35,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:35,996 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) [2023-12-15 21:40:36,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-15 21:40:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:36,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-15 21:40:36,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:36,230 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 30 treesize of output 19 [2023-12-15 21:40:36,238 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:36,238 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 35 treesize of output 40 [2023-12-15 21:40:36,248 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:36,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 61 [2023-12-15 21:40:36,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:36,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 61 treesize of output 64 [2023-12-15 21:40:36,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:36,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 16 [2023-12-15 21:40:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:36,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:36,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:36,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244254156] [2023-12-15 21:40:36,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:36,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662510731] [2023-12-15 21:40:36,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662510731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:36,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:36,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:40:36,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120854478] [2023-12-15 21:40:36,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:36,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:40:36,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:36,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:40:36,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:40:36,300 INFO L87 Difference]: Start difference. First operand 187 states and 239 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:36,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:36,435 INFO L93 Difference]: Finished difference Result 322 states and 412 transitions. [2023-12-15 21:40:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:40:36,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 126 [2023-12-15 21:40:36,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:36,439 INFO L225 Difference]: With dead ends: 322 [2023-12-15 21:40:36,439 INFO L226 Difference]: Without dead ends: 187 [2023-12-15 21:40:36,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:40:36,440 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 155 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:36,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 287 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:40:36,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-12-15 21:40:36,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-12-15 21:40:36,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 146 states have (on average 1.2191780821917808) internal successors, (178), 147 states have internal predecessors, (178), 30 states have call successors, (30), 10 states have call predecessors, (30), 10 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:40:36,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 238 transitions. [2023-12-15 21:40:36,479 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 238 transitions. Word has length 126 [2023-12-15 21:40:36,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:36,479 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 238 transitions. [2023-12-15 21:40:36,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:36,479 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 238 transitions. [2023-12-15 21:40:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-15 21:40:36,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:36,480 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:36,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:36,680 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 [2023-12-15 21:40:36,681 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:36,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:36,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1931618946, now seen corresponding path program 1 times [2023-12-15 21:40:36,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:36,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769602894] [2023-12-15 21:40:36,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:36,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:36,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:36,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245754994] [2023-12-15 21:40:36,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:36,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:36,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:36,741 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) [2023-12-15 21:40:36,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-15 21:40:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:43,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-15 21:40:43,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:43,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:43,546 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 39 treesize of output 15 [2023-12-15 21:40:43,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2023-12-15 21:40:43,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:43,650 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 49 treesize of output 30 [2023-12-15 21:40:43,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:43,693 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 49 treesize of output 30 [2023-12-15 21:40:43,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:43,751 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 49 treesize of output 30 [2023-12-15 21:40:43,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 30 [2023-12-15 21:40:43,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:43,913 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 71 treesize of output 44 [2023-12-15 21:40:43,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:43,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 60 treesize of output 62 [2023-12-15 21:40:43,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:43,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 83 [2023-12-15 21:40:44,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:44,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 88 treesize of output 93 [2023-12-15 21:40:44,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:44,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 109 treesize of output 35 [2023-12-15 21:40:44,223 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 264 proven. 45 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2023-12-15 21:40:44,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:44,762 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 54 proven. 27 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-12-15 21:40:44,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:44,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769602894] [2023-12-15 21:40:44,763 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:44,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245754994] [2023-12-15 21:40:44,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245754994] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 21:40:44,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 21:40:44,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14] total 33 [2023-12-15 21:40:44,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973251429] [2023-12-15 21:40:44,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 21:40:44,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-15 21:40:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:44,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-15 21:40:44,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2023-12-15 21:40:44,765 INFO L87 Difference]: Start difference. First operand 187 states and 238 transitions. Second operand has 33 states, 28 states have (on average 3.5357142857142856) internal successors, (99), 31 states have internal predecessors, (99), 10 states have call successors, (25), 4 states have call predecessors, (25), 8 states have return successors, (25), 6 states have call predecessors, (25), 10 states have call successors, (25) [2023-12-15 21:40:46,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:46,603 INFO L93 Difference]: Finished difference Result 342 states and 427 transitions. [2023-12-15 21:40:46,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-15 21:40:46,604 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 28 states have (on average 3.5357142857142856) internal successors, (99), 31 states have internal predecessors, (99), 10 states have call successors, (25), 4 states have call predecessors, (25), 8 states have return successors, (25), 6 states have call predecessors, (25), 10 states have call successors, (25) Word has length 126 [2023-12-15 21:40:46,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:46,605 INFO L225 Difference]: With dead ends: 342 [2023-12-15 21:40:46,605 INFO L226 Difference]: Without dead ends: 207 [2023-12-15 21:40:46,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=582, Invalid=1968, Unknown=0, NotChecked=0, Total=2550 [2023-12-15 21:40:46,607 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 248 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:46,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 604 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 21:40:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-15 21:40:46,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 193. [2023-12-15 21:40:46,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 151 states have (on average 1.205298013245033) internal successors, (182), 152 states have internal predecessors, (182), 29 states have call successors, (29), 12 states have call predecessors, (29), 12 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 21:40:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 240 transitions. [2023-12-15 21:40:46,660 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 240 transitions. Word has length 126 [2023-12-15 21:40:46,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:46,660 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 240 transitions. [2023-12-15 21:40:46,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 28 states have (on average 3.5357142857142856) internal successors, (99), 31 states have internal predecessors, (99), 10 states have call successors, (25), 4 states have call predecessors, (25), 8 states have return successors, (25), 6 states have call predecessors, (25), 10 states have call successors, (25) [2023-12-15 21:40:46,661 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2023-12-15 21:40:46,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-15 21:40:46,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:46,662 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:46,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:46,871 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 [2023-12-15 21:40:46,872 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:46,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:46,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1600110343, now seen corresponding path program 1 times [2023-12-15 21:40:46,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:46,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123760486] [2023-12-15 21:40:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:46,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:46,900 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:46,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124364503] [2023-12-15 21:40:46,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:46,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:46,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:46,902 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:40:46,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-15 21:40:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:47,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-15 21:40:47,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:47,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:47,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:47,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123760486] [2023-12-15 21:40:47,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:47,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124364503] [2023-12-15 21:40:47,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124364503] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:47,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:47,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:40:47,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783639808] [2023-12-15 21:40:47,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:47,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:40:47,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:40:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:40:47,158 INFO L87 Difference]: Start difference. First operand 193 states and 240 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:47,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:47,221 INFO L93 Difference]: Finished difference Result 341 states and 424 transitions. [2023-12-15 21:40:47,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:40:47,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 128 [2023-12-15 21:40:47,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:47,223 INFO L225 Difference]: With dead ends: 341 [2023-12-15 21:40:47,223 INFO L226 Difference]: Without dead ends: 202 [2023-12-15 21:40:47,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 21:40:47,224 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 39 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:47,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 610 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:40:47,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-12-15 21:40:47,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 194. [2023-12-15 21:40:47,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 152 states have (on average 1.2039473684210527) internal successors, (183), 153 states have internal predecessors, (183), 29 states have call successors, (29), 12 states have call predecessors, (29), 12 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 21:40:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 241 transitions. [2023-12-15 21:40:47,246 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 241 transitions. Word has length 128 [2023-12-15 21:40:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:47,247 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 241 transitions. [2023-12-15 21:40:47,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:47,247 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 241 transitions. [2023-12-15 21:40:47,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 21:40:47,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:47,248 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:47,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:47,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-15 21:40:47,454 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:47,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash 591887411, now seen corresponding path program 1 times [2023-12-15 21:40:47,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:47,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324703897] [2023-12-15 21:40:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:47,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:47,477 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:47,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234982960] [2023-12-15 21:40:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:47,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:47,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:47,498 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:40:47,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-15 21:40:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:48,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 102 conjunts are in the unsatisfiable core [2023-12-15 21:40:48,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:48,333 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:48,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 75 [2023-12-15 21:40:48,491 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:48,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 75 [2023-12-15 21:40:48,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:48,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 76 treesize of output 66 [2023-12-15 21:40:48,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2023-12-15 21:40:48,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:48,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 76 treesize of output 66 [2023-12-15 21:40:49,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 66 [2023-12-15 21:40:49,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:49,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 83 [2023-12-15 21:40:49,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:49,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 74 [2023-12-15 21:40:49,660 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:49,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 159 treesize of output 117 [2023-12-15 21:40:49,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:49,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 119 treesize of output 97 [2023-12-15 21:40:49,810 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:49,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 123 treesize of output 95 [2023-12-15 21:40:49,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:49,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 95 [2023-12-15 21:40:50,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:50,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 196 treesize of output 123 [2023-12-15 21:40:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 50 proven. 331 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-15 21:40:50,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:40:52,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:52,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324703897] [2023-12-15 21:40:52,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:52,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234982960] [2023-12-15 21:40:52,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234982960] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:40:52,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:40:52,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2023-12-15 21:40:52,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098223367] [2023-12-15 21:40:52,553 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-15 21:40:52,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-15 21:40:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-15 21:40:52,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=2043, Unknown=0, NotChecked=0, Total=2352 [2023-12-15 21:40:52,555 INFO L87 Difference]: Start difference. First operand 194 states and 241 transitions. Second operand has 28 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 25 states have internal predecessors, (79), 7 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (15), 5 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-15 21:40:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:56,415 INFO L93 Difference]: Finished difference Result 487 states and 598 transitions. [2023-12-15 21:40:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-12-15 21:40:56,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 25 states have internal predecessors, (79), 7 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (15), 5 states have call predecessors, (15), 7 states have call successors, (15) Word has length 130 [2023-12-15 21:40:56,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:56,416 INFO L225 Difference]: With dead ends: 487 [2023-12-15 21:40:56,416 INFO L226 Difference]: Without dead ends: 347 [2023-12-15 21:40:56,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1391 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=630, Invalid=4062, Unknown=0, NotChecked=0, Total=4692 [2023-12-15 21:40:56,418 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 239 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:56,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1128 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 21:40:56,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-12-15 21:40:56,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 232. [2023-12-15 21:40:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 185 states have (on average 1.2108108108108109) internal successors, (224), 185 states have internal predecessors, (224), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:40:56,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 284 transitions. [2023-12-15 21:40:56,446 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 284 transitions. Word has length 130 [2023-12-15 21:40:56,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:56,446 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 284 transitions. [2023-12-15 21:40:56,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 25 states have internal predecessors, (79), 7 states have call successors, (15), 7 states have call predecessors, (15), 8 states have return successors, (15), 5 states have call predecessors, (15), 7 states have call successors, (15) [2023-12-15 21:40:56,447 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 284 transitions. [2023-12-15 21:40:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 21:40:56,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:56,447 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:56,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:56,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:56,656 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:56,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:56,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1097056331, now seen corresponding path program 1 times [2023-12-15 21:40:56,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:56,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129133369] [2023-12-15 21:40:56,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:56,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:56,681 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:56,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596894337] [2023-12-15 21:40:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:56,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:56,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:56,687 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:40:56,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-15 21:40:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:40:57,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-15 21:40:57,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:40:57,333 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:57,334 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 19 treesize of output 7 [2023-12-15 21:40:57,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-15 21:40:57,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:40:57,359 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 50 treesize of output 29 [2023-12-15 21:40:57,361 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-15 21:40:57,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:40:57,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:40:57,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129133369] [2023-12-15 21:40:57,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:40:57,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596894337] [2023-12-15 21:40:57,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596894337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:40:57,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:40:57,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:40:57,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159887421] [2023-12-15 21:40:57,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:40:57,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:40:57,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:40:57,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:40:57,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:40:57,363 INFO L87 Difference]: Start difference. First operand 232 states and 284 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:57,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:40:57,512 INFO L93 Difference]: Finished difference Result 385 states and 478 transitions. [2023-12-15 21:40:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 21:40:57,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 130 [2023-12-15 21:40:57,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:40:57,513 INFO L225 Difference]: With dead ends: 385 [2023-12-15 21:40:57,513 INFO L226 Difference]: Without dead ends: 234 [2023-12-15 21:40:57,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:40:57,515 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 6 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:40:57,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 256 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:40:57,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-15 21:40:57,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-12-15 21:40:57,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 187 states have (on average 1.2085561497326203) internal successors, (226), 187 states have internal predecessors, (226), 30 states have call successors, (30), 16 states have call predecessors, (30), 16 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-15 21:40:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 286 transitions. [2023-12-15 21:40:57,542 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 286 transitions. Word has length 130 [2023-12-15 21:40:57,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:40:57,542 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 286 transitions. [2023-12-15 21:40:57,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-15 21:40:57,542 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 286 transitions. [2023-12-15 21:40:57,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 21:40:57,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:40:57,543 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:57,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:57,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:57,765 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:40:57,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:40:57,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1074424077, now seen corresponding path program 1 times [2023-12-15 21:40:57,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:40:57,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827222946] [2023-12-15 21:40:57,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:57,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:40:57,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:40:57,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365777286] [2023-12-15 21:40:57,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:40:57,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:57,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:40:57,787 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:40:57,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-15 21:40:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 21:40:58,514 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-15 21:40:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 21:40:58,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-15 21:40:58,827 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-15 21:40:58,828 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:40:58,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-15 21:40:59,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:40:59,041 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:40:59,044 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:40:59,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:40:59 BoogieIcfgContainer [2023-12-15 21:40:59,091 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:40:59,091 INFO L158 Benchmark]: Toolchain (without parser) took 43926.33ms. Allocated memory was 188.7MB in the beginning and 621.8MB in the end (delta: 433.1MB). Free memory was 126.8MB in the beginning and 329.4MB in the end (delta: -202.6MB). Peak memory consumption was 231.5MB. Max. memory is 8.0GB. [2023-12-15 21:40:59,094 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory was 140.2MB in the beginning and 140.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:40:59,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.16ms. Allocated memory is still 188.7MB. Free memory was 126.5MB in the beginning and 110.5MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-15 21:40:59,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.24ms. Allocated memory is still 188.7MB. Free memory was 110.5MB in the beginning and 106.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:40:59,095 INFO L158 Benchmark]: Boogie Preprocessor took 128.34ms. Allocated memory is still 188.7MB. Free memory was 106.0MB in the beginning and 101.3MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 21:40:59,095 INFO L158 Benchmark]: RCFGBuilder took 662.65ms. Allocated memory was 188.7MB in the beginning and 248.5MB in the end (delta: 59.8MB). Free memory was 101.3MB in the beginning and 190.6MB in the end (delta: -89.3MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2023-12-15 21:40:59,095 INFO L158 Benchmark]: TraceAbstraction took 42640.23ms. Allocated memory was 248.5MB in the beginning and 621.8MB in the end (delta: 373.3MB). Free memory was 189.6MB in the beginning and 329.4MB in the end (delta: -139.8MB). Peak memory consumption was 233.0MB. Max. memory is 8.0GB. [2023-12-15 21:40:59,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 188.7MB. Free memory was 140.2MB in the beginning and 140.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 402.16ms. Allocated memory is still 188.7MB. Free memory was 126.5MB in the beginning and 110.5MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 86.24ms. Allocated memory is still 188.7MB. Free memory was 110.5MB in the beginning and 106.0MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 128.34ms. Allocated memory is still 188.7MB. Free memory was 106.0MB in the beginning and 101.3MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 662.65ms. Allocated memory was 188.7MB in the beginning and 248.5MB in the end (delta: 59.8MB). Free memory was 101.3MB in the beginning and 190.6MB in the end (delta: -89.3MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. * TraceAbstraction took 42640.23ms. Allocated memory was 248.5MB in the beginning and 621.8MB in the end (delta: 373.3MB). Free memory was 189.6MB in the beginning and 329.4MB in the end (delta: -139.8MB). Peak memory consumption was 233.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 109. Possible FailurePath: [L38] unsigned char isInitial = 0; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L39-L54] struct WrapperStruct00 WrapperStruct00 = { 8, 59049, 100, 16, -25, 16, 25, -10, 0, 25.1, 2531521428, -128, 256, -16 }; [L113] isInitial = 1 [L114] FCALL initially() [L115] COND TRUE 1 [L116] FCALL updateLastVariables() [L117] CALL updateVariables() [L82] WrapperStruct00.var_1_2 = __VERIFIER_nondet_ushort() [L83] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L83] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L83] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 32767) VAL [WrapperStruct00={4:0}, isInitial=1] [L84] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L84] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 65535) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L84] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 65535) VAL [WrapperStruct00={4:0}, isInitial=1] [L85] WrapperStruct00.var_1_3 = __VERIFIER_nondet_ushort() [L86] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L87] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L87] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1] [L88] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L89] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L90] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1] [L91] WrapperStruct00.var_1_8 = __VERIFIER_nondet_char() [L92] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L93] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L94] WrapperStruct00.var_1_9 = __VERIFIER_nondet_char() [L95] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1] [L96] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 31) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 31) VAL [WrapperStruct00={4:0}, isInitial=1] [L97] WrapperStruct00.var_1_10 = __VERIFIER_nondet_char() [L98] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1] [L99] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1] [L100] WrapperStruct00.var_1_12 = __VERIFIER_nondet_float() [L101] EXPR WrapperStruct00.var_1_12 [L101] EXPR WrapperStruct00.var_1_12 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR WrapperStruct00.var_1_12 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F [L101] EXPR WrapperStruct00.var_1_12 [L101] EXPR WrapperStruct00.var_1_12 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR (WrapperStruct00.var_1_12 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] EXPR (WrapperStruct00.var_1_12 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1] [L101] CALL assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L101] RET assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1] [L102] WrapperStruct00.var_1_13 = __VERIFIER_nondet_ulong() [L103] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1] [L104] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 4294967295) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 4294967295) VAL [WrapperStruct00={4:0}, isInitial=1] [L117] RET updateVariables() [L118] CALL step() [L58] EXPR WrapperStruct00.var_1_8 [L58] WrapperStruct00.var_1_14 = WrapperStruct00.var_1_8 [L59] EXPR WrapperStruct00.var_1_14 [L59] WrapperStruct00.var_1_16 = WrapperStruct00.var_1_14 [L60] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L60] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) [L60] EXPR WrapperStruct00.var_1_14 [L60] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1] [L60] signed long int stepLocal_0 = (((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)); [L61] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1] [L61] COND FALSE !(WrapperStruct00.var_1_2 <= stepLocal_0) [L64] EXPR WrapperStruct00.var_1_10 [L64] WrapperStruct00.var_1_7 = WrapperStruct00.var_1_10 [L66] EXPR WrapperStruct00.var_1_16 [L66] WrapperStruct00.var_1_15 = WrapperStruct00.var_1_16 [L67] EXPR WrapperStruct00.var_1_2 [L67] EXPR WrapperStruct00.var_1_3 [L67] EXPR WrapperStruct00.var_1_15 [L67] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L67] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=5] [L67] COND FALSE !(((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) [L70] EXPR WrapperStruct00.var_1_6 [L70] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_6 [L72] EXPR WrapperStruct00.var_1_1 [L72] unsigned char stepLocal_1 = WrapperStruct00.var_1_1; [L73] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L73] COND FALSE !(2.75f > WrapperStruct00.var_1_12) [L76] EXPR WrapperStruct00.var_1_13 [L76] EXPR WrapperStruct00.var_1_14 [L76] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L76] EXPR ((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8) [L76] EXPR WrapperStruct00.var_1_8 [L76] EXPR ((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=5, stepLocal_1=8] [L76] COND TRUE (WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > stepLocal_1 [L77] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1] [L77] EXPR ((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5)) [L77] EXPR WrapperStruct00.var_1_8 [L77] EXPR ((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5)) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=5, stepLocal_1=8] [L77] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1] [L77] EXPR ((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10) [L77] EXPR WrapperStruct00.var_1_10 [L77] EXPR ((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10) VAL [WrapperStruct00={4:0}, isInitial=1, stepLocal_0=5, stepLocal_1=8] [L77] WrapperStruct00.var_1_11 = ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))) [L118] RET step() [L119] CALL, EXPR property() [L109] EXPR WrapperStruct00.var_1_2 [L109] EXPR WrapperStruct00.var_1_3 [L109] EXPR WrapperStruct00.var_1_15 [L109] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) [L109] EXPR WrapperStruct00.var_1_1 [L109] EXPR WrapperStruct00.var_1_6 [L109] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10))) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10))) [L109] EXPR WrapperStruct00.var_1_2 [L109] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) [L109] EXPR WrapperStruct00.var_1_14 [L109] EXPR ((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)) [L109] EXPR WrapperStruct00.var_1_7 [L109] EXPR WrapperStruct00.var_1_10 [L109] EXPR (WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10))) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1)) [L109] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1) [L109] EXPR WrapperStruct00.var_1_11 [L109] EXPR WrapperStruct00.var_1_10 [L109] EXPR WrapperStruct00.var_1_8 [L109] EXPR (2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1))) && (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_8)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1))) && (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_8)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1))) && (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR (((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1))) && (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1))) && (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16))) && (WrapperStruct00.var_1_16 == ((signed short int) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109] EXPR ((((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1))) && (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16))) && (WrapperStruct00.var_1_16 == ((signed short int) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1] [L109-L110] return ((((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) ^ (WrapperStruct00.var_1_15 * WrapperStruct00.var_1_16)) <= -64) ? (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_6))) && ((WrapperStruct00.var_1_2 <= ((((WrapperStruct00.var_1_14) < 0 ) ? -(WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_14)))) ? (WrapperStruct00.var_1_7 == ((signed char) ((WrapperStruct00.var_1_8 - (1 + WrapperStruct00.var_1_9)) + WrapperStruct00.var_1_10))) : (WrapperStruct00.var_1_7 == ((signed char) WrapperStruct00.var_1_10)))) && ((2.75f > WrapperStruct00.var_1_12) ? (WrapperStruct00.var_1_11 == ((signed char) (WrapperStruct00.var_1_10 + WrapperStruct00.var_1_8))) : (((WrapperStruct00.var_1_13 - ((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_8)))) > WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_11 == ((signed char) ((((((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) < (WrapperStruct00.var_1_10)) ? (((((WrapperStruct00.var_1_8) < ((1 + 5))) ? (WrapperStruct00.var_1_8) : ((1 + 5))))) : (WrapperStruct00.var_1_10))))) : 1))) && (WrapperStruct00.var_1_14 == ((signed long int) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_15 == ((signed long int) WrapperStruct00.var_1_16))) && (WrapperStruct00.var_1_16 == ((signed short int) WrapperStruct00.var_1_14)) ; [L119] RET, EXPR property() [L119] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.5s, OverallIterations: 21, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3163 SdHoareTripleChecker+Valid, 7.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3143 mSDsluCounter, 9330 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7115 mSDsCounter, 557 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8137 IncrementalHoareTripleChecker+Invalid, 8694 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 557 mSolverCounterUnsat, 2215 mSDtfsCounter, 8137 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3433 GetRequests, 3122 SyntacticMatches, 8 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2714 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred in iteration=6, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 724 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 9.8s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 2714 NumberOfCodeBlocks, 2714 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3297 ConstructedInterpolants, 1 QuantifiedInterpolants, 43948 SizeOfPredicates, 135 NumberOfNonLiveVariables, 8872 ConjunctsInSsa, 512 ConjunctsInUnsatCore, 27 InterpolantComputations, 16 PerfectInterpolantSequences, 10613/11340 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 [2023-12-15 21:40:59,304 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...