/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-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:46:30,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:46:30,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:46:30,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:46:30,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:46:30,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:46:30,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:46:30,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:46:30,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:46:30,933 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:46:30,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:46:30,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:46:30,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:46:30,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:46:30,936 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:46:30,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:46:30,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:46:30,936 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:46:30,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:46:30,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:46:30,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:46:30,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:46:30,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:46:30,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:46:30,938 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:46:30,938 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:46:30,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:46:30,939 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:46:30,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:46:30,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:46:30,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:46:30,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:46:30,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:46:30,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:46:30,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:46:30,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:46:30,942 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:46:31,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:46:31,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:46:31,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:46:31,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:46:31,145 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:46:31,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-4.i [2023-12-19 15:46:32,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:46:32,399 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:46:32,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-4.i [2023-12-19 15:46:32,407 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a044a1a3f/076896cfb1e84d12b9c5cb98dc7a801e/FLAG775764a77 [2023-12-19 15:46:32,787 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a044a1a3f/076896cfb1e84d12b9c5cb98dc7a801e [2023-12-19 15:46:32,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:46:32,790 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:46:32,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:46:32,791 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:46:32,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:46:32,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:46:32" (1/1) ... [2023-12-19 15:46:32,795 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c76444c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:32, skipping insertion in model container [2023-12-19 15:46:32,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:46:32" (1/1) ... [2023-12-19 15:46:32,810 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:46:32,918 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-4.i[915,928] [2023-12-19 15:46:32,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:46:32,969 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:46:32,976 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-4.i[915,928] [2023-12-19 15:46:33,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:46:33,013 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:46:33,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33 WrapperNode [2023-12-19 15:46:33,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:46:33,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:46:33,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:46:33,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:46:33,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,061 INFO L138 Inliner]: procedures = 29, calls = 157, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 488 [2023-12-19 15:46:33,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:46:33,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:46:33,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:46:33,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:46:33,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,094 INFO L175 MemorySlicer]: Split 130 memory accesses to 2 slices as follows [2, 128]. 98 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 13]. The 15 writes are split as follows [0, 15]. [2023-12-19 15:46:33,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:46:33,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:46:33,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:46:33,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:46:33,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (1/1) ... [2023-12-19 15:46:33,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:46:33,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:33,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 15:46:33,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 15:46:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:46:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-19 15:46:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-19 15:46:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:46:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:46:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-19 15:46:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-19 15:46:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:46:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:46:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-19 15:46:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-19 15:46:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:46:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:46:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:46:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:46:33,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:46:33,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:46:33,310 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:46:33,311 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:46:33,681 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:46:33,705 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:46:33,705 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:46:33,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:46:33 BoogieIcfgContainer [2023-12-19 15:46:33,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:46:33,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:46:33,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:46:33,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:46:33,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:46:32" (1/3) ... [2023-12-19 15:46:33,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6c725e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:46:33, skipping insertion in model container [2023-12-19 15:46:33,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:33" (2/3) ... [2023-12-19 15:46:33,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6c725e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:46:33, skipping insertion in model container [2023-12-19 15:46:33,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:46:33" (3/3) ... [2023-12-19 15:46:33,720 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-4.i [2023-12-19 15:46:33,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:46:33,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:46:33,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:46:33,766 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;@50d7c3df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:46:33,766 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:46:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 86 states have internal predecessors, (124), 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) [2023-12-19 15:46:33,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 15:46:33,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:33,787 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] [2023-12-19 15:46:33,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:33,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash -2023219375, now seen corresponding path program 1 times [2023-12-19 15:46:33,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:33,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024424939] [2023-12-19 15:46:33,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:33,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:34,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:34,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024424939] [2023-12-19 15:46:34,008 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:46:34,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952495494] [2023-12-19 15:46:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:34,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:34,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:34,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:34,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:46:34,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:34,202 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 15:46:34,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-12-19 15:46:34,246 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:34,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952495494] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:34,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:34,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:46:34,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447823646] [2023-12-19 15:46:34,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:34,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:46:34,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:34,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:46:34,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:46:34,277 INFO L87 Difference]: Start difference. First operand has 103 states, 85 states have (on average 1.4588235294117646) internal successors, (124), 86 states have internal predecessors, (124), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2023-12-19 15:46:34,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:34,318 INFO L93 Difference]: Finished difference Result 203 states and 321 transitions. [2023-12-19 15:46:34,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:46:34,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 125 [2023-12-19 15:46:34,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:34,326 INFO L225 Difference]: With dead ends: 203 [2023-12-19 15:46:34,327 INFO L226 Difference]: Without dead ends: 101 [2023-12-19 15:46:34,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:46:34,332 INFO L413 NwaCegarLoop]: 145 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, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:34,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:34,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-19 15:46:34,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-12-19 15:46:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 84 states have internal predecessors, (119), 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) [2023-12-19 15:46:34,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 149 transitions. [2023-12-19 15:46:34,389 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 149 transitions. Word has length 125 [2023-12-19 15:46:34,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:34,389 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 149 transitions. [2023-12-19 15:46:34,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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) [2023-12-19 15:46:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 149 transitions. [2023-12-19 15:46:34,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 15:46:34,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:34,393 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] [2023-12-19 15:46:34,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:34,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 15:46:34,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:34,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:34,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1858381533, now seen corresponding path program 1 times [2023-12-19 15:46:34,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:34,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760543164] [2023-12-19 15:46:34,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:34,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:34,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:34,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760543164] [2023-12-19 15:46:34,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:46:34,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313531373] [2023-12-19 15:46:34,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:34,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:34,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:34,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:34,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 15:46:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:34,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:46:34,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-12-19 15:46:34,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:34,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313531373] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:34,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:34,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:46:34,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454477019] [2023-12-19 15:46:34,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:34,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:46:34,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:46:34,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:46:34,894 INFO L87 Difference]: Start difference. First operand 101 states and 149 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:46:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:34,952 INFO L93 Difference]: Finished difference Result 207 states and 306 transitions. [2023-12-19 15:46:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:46:34,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 125 [2023-12-19 15:46:34,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:34,953 INFO L225 Difference]: With dead ends: 207 [2023-12-19 15:46:34,953 INFO L226 Difference]: Without dead ends: 107 [2023-12-19 15:46:34,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:34,955 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 10 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 427 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 [2023-12-19 15:46:34,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 427 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-19 15:46:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2023-12-19 15:46:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.4069767441860466) internal successors, (121), 86 states have internal predecessors, (121), 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) [2023-12-19 15:46:34,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 151 transitions. [2023-12-19 15:46:34,964 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 151 transitions. Word has length 125 [2023-12-19 15:46:34,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:34,965 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 151 transitions. [2023-12-19 15:46:34,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-19 15:46:34,965 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 151 transitions. [2023-12-19 15:46:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 15:46:34,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:34,966 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] [2023-12-19 15:46:34,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:35,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 15:46:35,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:35,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:35,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1935282331, now seen corresponding path program 1 times [2023-12-19 15:46:35,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:35,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866283268] [2023-12-19 15:46:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:35,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:35,220 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:35,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760466999] [2023-12-19 15:46:35,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:35,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:35,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:35,234 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:35,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 15:46:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:35,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:46:35,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:35,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:35,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:35,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866283268] [2023-12-19 15:46:35,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:35,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760466999] [2023-12-19 15:46:35,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760466999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:35,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:35,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:46:35,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966477196] [2023-12-19 15:46:35,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:35,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:46:35,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:35,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:46:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:46:35,412 INFO L87 Difference]: Start difference. First operand 103 states and 151 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-12-19 15:46:35,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:35,442 INFO L93 Difference]: Finished difference Result 209 states and 306 transitions. [2023-12-19 15:46:35,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:46:35,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 125 [2023-12-19 15:46:35,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:35,447 INFO L225 Difference]: With dead ends: 209 [2023-12-19 15:46:35,447 INFO L226 Difference]: Without dead ends: 107 [2023-12-19 15:46:35,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:35,451 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 3 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:35,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 423 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-19 15:46:35,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2023-12-19 15:46:35,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.3977272727272727) internal successors, (123), 88 states have internal predecessors, (123), 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) [2023-12-19 15:46:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 153 transitions. [2023-12-19 15:46:35,465 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 153 transitions. Word has length 125 [2023-12-19 15:46:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:35,465 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 153 transitions. [2023-12-19 15:46:35,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-12-19 15:46:35,465 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 153 transitions. [2023-12-19 15:46:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 15:46:35,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:35,466 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] [2023-12-19 15:46:35,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:35,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:35,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:35,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:35,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1935222749, now seen corresponding path program 1 times [2023-12-19 15:46:35,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:35,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636477481] [2023-12-19 15:46:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:35,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:35,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:35,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1715281367] [2023-12-19 15:46:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:35,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:35,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:35,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:35,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 15:46:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:36,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-19 15:46:36,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:36,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:36,114 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 [2023-12-19 15:46:36,129 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 32 treesize of output 30 [2023-12-19 15:46:36,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:36,178 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 78 treesize of output 30 [2023-12-19 15:46:36,187 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:36,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:36,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:36,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636477481] [2023-12-19 15:46:36,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:36,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715281367] [2023-12-19 15:46:36,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715281367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:36,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:36,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:36,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890826904] [2023-12-19 15:46:36,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:36,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:36,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:36,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:36,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:36,189 INFO L87 Difference]: Start difference. First operand 105 states and 153 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-12-19 15:46:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:36,377 INFO L93 Difference]: Finished difference Result 244 states and 353 transitions. [2023-12-19 15:46:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:46:36,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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 125 [2023-12-19 15:46:36,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:36,379 INFO L225 Difference]: With dead ends: 244 [2023-12-19 15:46:36,379 INFO L226 Difference]: Without dead ends: 140 [2023-12-19 15:46:36,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:36,380 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 114 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:36,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 450 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:46:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-19 15:46:36,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 121. [2023-12-19 15:46:36,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 98 states have (on average 1.3571428571428572) internal successors, (133), 99 states have internal predecessors, (133), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:36,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 173 transitions. [2023-12-19 15:46:36,387 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 173 transitions. Word has length 125 [2023-12-19 15:46:36,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:36,388 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 173 transitions. [2023-12-19 15:46:36,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2023-12-19 15:46:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 173 transitions. [2023-12-19 15:46:36,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-19 15:46:36,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:36,390 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] [2023-12-19 15:46:36,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 15:46:36,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:36,600 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:36,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:36,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1966717537, now seen corresponding path program 1 times [2023-12-19 15:46:36,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:36,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220622309] [2023-12-19 15:46:36,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:36,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:36,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:36,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97735920] [2023-12-19 15:46:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:36,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:36,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:36,627 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:36,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 15:46:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:36,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:46:36,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:36,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:36,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:36,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220622309] [2023-12-19 15:46:36,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:36,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97735920] [2023-12-19 15:46:36,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97735920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:36,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:36,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:46:36,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571335999] [2023-12-19 15:46:36,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:36,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:46:36,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:46:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:46:36,787 INFO L87 Difference]: Start difference. First operand 121 states and 173 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-12-19 15:46:36,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:36,811 INFO L93 Difference]: Finished difference Result 253 states and 361 transitions. [2023-12-19 15:46:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 15:46:36,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 125 [2023-12-19 15:46:36,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:36,813 INFO L225 Difference]: With dead ends: 253 [2023-12-19 15:46:36,813 INFO L226 Difference]: Without dead ends: 143 [2023-12-19 15:46:36,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:36,814 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 27 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:36,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 452 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:36,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2023-12-19 15:46:36,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 123. [2023-12-19 15:46:36,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.35) internal successors, (135), 101 states have internal predecessors, (135), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 175 transitions. [2023-12-19 15:46:36,819 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 175 transitions. Word has length 125 [2023-12-19 15:46:36,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:36,820 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 175 transitions. [2023-12-19 15:46:36,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-12-19 15:46:36,820 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 175 transitions. [2023-12-19 15:46:36,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-19 15:46:36,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:36,821 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] [2023-12-19 15:46:36,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:37,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:37,027 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:37,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash 2037900943, now seen corresponding path program 1 times [2023-12-19 15:46:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:37,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944269147] [2023-12-19 15:46:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:37,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:37,062 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:37,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [403978445] [2023-12-19 15:46:37,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:37,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:37,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:37,078 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:37,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 15:46:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:37,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 15:46:37,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:37,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:37,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944269147] [2023-12-19 15:46:37,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403978445] [2023-12-19 15:46:37,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403978445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:37,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:37,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:37,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745333983] [2023-12-19 15:46:37,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:37,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:37,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:37,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:37,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:37,256 INFO L87 Difference]: Start difference. First operand 123 states and 175 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-12-19 15:46:37,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:37,317 INFO L93 Difference]: Finished difference Result 278 states and 394 transitions. [2023-12-19 15:46:37,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:46:37,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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 127 [2023-12-19 15:46:37,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:37,322 INFO L225 Difference]: With dead ends: 278 [2023-12-19 15:46:37,323 INFO L226 Difference]: Without dead ends: 166 [2023-12-19 15:46:37,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:37,325 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 55 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:37,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 652 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:37,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-12-19 15:46:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 124. [2023-12-19 15:46:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 102 states have internal predecessors, (136), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 176 transitions. [2023-12-19 15:46:37,334 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 176 transitions. Word has length 127 [2023-12-19 15:46:37,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:37,335 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 176 transitions. [2023-12-19 15:46:37,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 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) [2023-12-19 15:46:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 176 transitions. [2023-12-19 15:46:37,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:37,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:37,336 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] [2023-12-19 15:46:37,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:37,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:37,542 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:37,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:37,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1879917290, now seen corresponding path program 1 times [2023-12-19 15:46:37,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:37,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138130321] [2023-12-19 15:46:37,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:37,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:37,576 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:37,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334151351] [2023-12-19 15:46:37,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:37,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:37,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:37,578 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:37,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 15:46:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:37,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-19 15:46:37,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:37,798 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 15 treesize of output 1 [2023-12-19 15:46:37,820 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 15 treesize of output 1 [2023-12-19 15:46:37,841 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 15 treesize of output 1 [2023-12-19 15:46:37,854 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 15 treesize of output 1 [2023-12-19 15:46:37,865 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 15 treesize of output 1 [2023-12-19 15:46:37,875 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 15 treesize of output 1 [2023-12-19 15:46:37,890 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 15 treesize of output 1 [2023-12-19 15:46:37,904 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 15 treesize of output 1 [2023-12-19 15:46:37,923 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 15 treesize of output 1 [2023-12-19 15:46:37,929 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 15 treesize of output 1 [2023-12-19 15:46:37,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2023-12-19 15:46:37,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:37,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 29 [2023-12-19 15:46:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:38,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:38,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138130321] [2023-12-19 15:46:38,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:38,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334151351] [2023-12-19 15:46:38,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334151351] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:38,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:38,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:38,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687804018] [2023-12-19 15:46:38,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:38,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:38,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:38,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:38,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:38,018 INFO L87 Difference]: Start difference. First operand 124 states and 176 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 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) [2023-12-19 15:46:38,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:38,374 INFO L93 Difference]: Finished difference Result 266 states and 374 transitions. [2023-12-19 15:46:38,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:46:38,374 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:38,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:38,375 INFO L225 Difference]: With dead ends: 266 [2023-12-19 15:46:38,375 INFO L226 Difference]: Without dead ends: 153 [2023-12-19 15:46:38,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:46:38,376 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:38,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 237 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:46:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-19 15:46:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 126. [2023-12-19 15:46:38,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 104 states have internal predecessors, (138), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 178 transitions. [2023-12-19 15:46:38,381 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 178 transitions. Word has length 129 [2023-12-19 15:46:38,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:38,381 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 178 transitions. [2023-12-19 15:46:38,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 5 states have internal predecessors, (57), 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) [2023-12-19 15:46:38,381 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 178 transitions. [2023-12-19 15:46:38,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:38,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:38,382 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] [2023-12-19 15:46:38,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:38,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:38,589 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:38,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:38,589 INFO L85 PathProgramCache]: Analyzing trace with hash 887476524, now seen corresponding path program 1 times [2023-12-19 15:46:38,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:38,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645440417] [2023-12-19 15:46:38,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:38,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:38,611 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:38,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291012274] [2023-12-19 15:46:38,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:38,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:38,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:38,623 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:38,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 15:46:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:38,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-19 15:46:38,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:38,930 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 37 treesize of output 25 [2023-12-19 15:46:38,955 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 37 treesize of output 25 [2023-12-19 15:46:38,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:38,998 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 46 treesize of output 48 [2023-12-19 15:46:39,105 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:39,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 29 [2023-12-19 15:46:39,124 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:39,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:39,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:39,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645440417] [2023-12-19 15:46:39,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:39,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291012274] [2023-12-19 15:46:39,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291012274] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:39,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:39,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:39,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832358816] [2023-12-19 15:46:39,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:39,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:46:39,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:39,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:46:39,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:46:39,125 INFO L87 Difference]: Start difference. First operand 126 states and 178 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:40,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:40,320 INFO L93 Difference]: Finished difference Result 314 states and 441 transitions. [2023-12-19 15:46:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:46:40,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:40,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:40,321 INFO L225 Difference]: With dead ends: 314 [2023-12-19 15:46:40,321 INFO L226 Difference]: Without dead ends: 199 [2023-12-19 15:46:40,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:46:40,322 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 243 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:40,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 254 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 15:46:40,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-12-19 15:46:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 154. [2023-12-19 15:46:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 131 states have (on average 1.3511450381679388) internal successors, (177), 132 states have internal predecessors, (177), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 217 transitions. [2023-12-19 15:46:40,328 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 217 transitions. Word has length 129 [2023-12-19 15:46:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:40,328 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 217 transitions. [2023-12-19 15:46:40,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 217 transitions. [2023-12-19 15:46:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:40,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:40,329 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] [2023-12-19 15:46:40,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:40,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 15:46:40,535 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:40,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:40,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1038940949, now seen corresponding path program 1 times [2023-12-19 15:46:40,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:40,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503252416] [2023-12-19 15:46:40,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:40,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:40,556 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:40,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991071996] [2023-12-19 15:46:40,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:40,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:40,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:40,557 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:40,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 15:46:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:40,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-19 15:46:40,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:40,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:40,749 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 [2023-12-19 15:46:40,758 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 21 treesize of output 21 [2023-12-19 15:46:40,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:40,769 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 37 treesize of output 24 [2023-12-19 15:46:40,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:40,774 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 44 [2023-12-19 15:46:40,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:40,878 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 70 treesize of output 22 [2023-12-19 15:46:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:40,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:40,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:40,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503252416] [2023-12-19 15:46:40,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:40,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991071996] [2023-12-19 15:46:40,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991071996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:40,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:40,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:46:40,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921360888] [2023-12-19 15:46:40,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:40,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:46:40,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:40,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:46:40,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:46:40,924 INFO L87 Difference]: Start difference. First operand 154 states and 217 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:41,994 INFO L93 Difference]: Finished difference Result 444 states and 618 transitions. [2023-12-19 15:46:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-19 15:46:41,995 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:41,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:41,996 INFO L225 Difference]: With dead ends: 444 [2023-12-19 15:46:41,996 INFO L226 Difference]: Without dead ends: 301 [2023-12-19 15:46:41,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-12-19 15:46:41,998 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 461 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:41,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 947 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:46:41,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-12-19 15:46:42,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 188. [2023-12-19 15:46:42,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 165 states have (on average 1.3515151515151516) internal successors, (223), 166 states have internal predecessors, (223), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 263 transitions. [2023-12-19 15:46:42,005 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 263 transitions. Word has length 129 [2023-12-19 15:46:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:42,006 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 263 transitions. [2023-12-19 15:46:42,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:42,006 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 263 transitions. [2023-12-19 15:46:42,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:42,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:42,007 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] [2023-12-19 15:46:42,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:42,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:42,214 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:42,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:42,215 INFO L85 PathProgramCache]: Analyzing trace with hash 645913939, now seen corresponding path program 1 times [2023-12-19 15:46:42,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:42,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905714667] [2023-12-19 15:46:42,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:42,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:42,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:42,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037763568] [2023-12-19 15:46:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:42,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:42,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:42,258 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:42,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 15:46:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:42,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 15:46:42,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:42,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:42,491 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 [2023-12-19 15:46:42,520 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:42,520 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 41 treesize of output 28 [2023-12-19 15:46:42,536 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:42,537 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 41 treesize of output 28 [2023-12-19 15:46:42,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:42,550 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 54 treesize of output 48 [2023-12-19 15:46:42,631 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:42,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:42,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:42,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905714667] [2023-12-19 15:46:42,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:42,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037763568] [2023-12-19 15:46:42,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037763568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:42,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:42,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:42,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324057558] [2023-12-19 15:46:42,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:42,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:42,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:42,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:42,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:42,635 INFO L87 Difference]: Start difference. First operand 188 states and 263 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:43,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:43,034 INFO L93 Difference]: Finished difference Result 400 states and 556 transitions. [2023-12-19 15:46:43,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:46:43,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:43,035 INFO L225 Difference]: With dead ends: 400 [2023-12-19 15:46:43,035 INFO L226 Difference]: Without dead ends: 223 [2023-12-19 15:46:43,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:46:43,036 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 66 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:43,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 458 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:46:43,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-19 15:46:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 212. [2023-12-19 15:46:43,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 185 states have (on average 1.3405405405405406) internal successors, (248), 187 states have internal predecessors, (248), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:46:43,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 294 transitions. [2023-12-19 15:46:43,043 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 294 transitions. Word has length 129 [2023-12-19 15:46:43,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:43,044 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 294 transitions. [2023-12-19 15:46:43,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:43,044 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 294 transitions. [2023-12-19 15:46:43,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:43,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:43,045 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] [2023-12-19 15:46:43,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:43,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 15:46:43,250 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:43,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:43,251 INFO L85 PathProgramCache]: Analyzing trace with hash 904927443, now seen corresponding path program 1 times [2023-12-19 15:46:43,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:43,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402136893] [2023-12-19 15:46:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:43,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:43,268 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:43,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353887370] [2023-12-19 15:46:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:43,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:43,270 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:43,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 15:46:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:43,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:46:43,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:43,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:43,473 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 [2023-12-19 15:46:43,492 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:43,492 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 39 treesize of output 26 [2023-12-19 15:46:43,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:43,501 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 39 treesize of output 26 [2023-12-19 15:46:43,507 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:43,507 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 52 treesize of output 46 [2023-12-19 15:46:43,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:43,570 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 70 treesize of output 22 [2023-12-19 15:46:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:43,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:43,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402136893] [2023-12-19 15:46:43,578 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353887370] [2023-12-19 15:46:43,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353887370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:43,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:43,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:43,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182905981] [2023-12-19 15:46:43,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:43,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:43,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:43,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:43,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:43,580 INFO L87 Difference]: Start difference. First operand 212 states and 294 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:43,993 INFO L93 Difference]: Finished difference Result 473 states and 649 transitions. [2023-12-19 15:46:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:46:43,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:43,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:43,994 INFO L225 Difference]: With dead ends: 473 [2023-12-19 15:46:43,994 INFO L226 Difference]: Without dead ends: 272 [2023-12-19 15:46:43,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:43,995 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 113 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:43,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 572 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:46:43,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-12-19 15:46:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 219. [2023-12-19 15:46:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 191 states have (on average 1.3298429319371727) internal successors, (254), 193 states have internal predecessors, (254), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:46:44,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 300 transitions. [2023-12-19 15:46:44,003 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 300 transitions. Word has length 129 [2023-12-19 15:46:44,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:44,003 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 300 transitions. [2023-12-19 15:46:44,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:44,003 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 300 transitions. [2023-12-19 15:46:44,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:44,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:44,004 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] [2023-12-19 15:46:44,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:44,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 15:46:44,211 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:44,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:44,211 INFO L85 PathProgramCache]: Analyzing trace with hash 511900433, now seen corresponding path program 1 times [2023-12-19 15:46:44,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:44,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585955885] [2023-12-19 15:46:44,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:44,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:44,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:44,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764318944] [2023-12-19 15:46:44,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:44,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:44,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:44,266 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:44,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 15:46:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:44,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-19 15:46:44,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:44,457 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:44,457 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 [2023-12-19 15:46:44,468 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 21 treesize of output 21 [2023-12-19 15:46:44,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:44,483 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 37 treesize of output 24 [2023-12-19 15:46:44,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:44,488 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 50 treesize of output 53 [2023-12-19 15:46:44,621 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:44,624 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 70 treesize of output 22 [2023-12-19 15:46:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:44,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:44,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:44,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585955885] [2023-12-19 15:46:44,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:44,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764318944] [2023-12-19 15:46:44,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764318944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:44,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:44,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:46:44,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657773959] [2023-12-19 15:46:44,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:44,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:46:44,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:44,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:46:44,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:46:44,661 INFO L87 Difference]: Start difference. First operand 219 states and 300 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:45,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:45,563 INFO L93 Difference]: Finished difference Result 492 states and 672 transitions. [2023-12-19 15:46:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-19 15:46:45,563 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:45,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:45,564 INFO L225 Difference]: With dead ends: 492 [2023-12-19 15:46:45,564 INFO L226 Difference]: Without dead ends: 288 [2023-12-19 15:46:45,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=242, Invalid=570, Unknown=0, NotChecked=0, Total=812 [2023-12-19 15:46:45,566 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 385 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:45,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1040 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:46:45,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-12-19 15:46:45,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 217. [2023-12-19 15:46:45,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 189 states have (on average 1.3333333333333333) internal successors, (252), 191 states have internal predecessors, (252), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:46:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 298 transitions. [2023-12-19 15:46:45,573 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 298 transitions. Word has length 129 [2023-12-19 15:46:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:45,573 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 298 transitions. [2023-12-19 15:46:45,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:45,573 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 298 transitions. [2023-12-19 15:46:45,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:45,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:45,574 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] [2023-12-19 15:46:45,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:45,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 15:46:45,781 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:45,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:45,781 INFO L85 PathProgramCache]: Analyzing trace with hash 392606467, now seen corresponding path program 1 times [2023-12-19 15:46:45,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:45,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282038031] [2023-12-19 15:46:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:45,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:45,812 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:45,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880499964] [2023-12-19 15:46:45,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:45,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:45,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:45,813 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:45,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 15:46:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:46,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-19 15:46:46,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:46,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:46,020 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 [2023-12-19 15:46:46,028 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 21 treesize of output 21 [2023-12-19 15:46:46,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:46,039 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 37 treesize of output 24 [2023-12-19 15:46:46,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:46,045 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 50 treesize of output 53 [2023-12-19 15:46:46,151 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:46,151 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 70 treesize of output 22 [2023-12-19 15:46:46,188 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:46,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:46,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:46,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282038031] [2023-12-19 15:46:46,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:46,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880499964] [2023-12-19 15:46:46,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880499964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:46,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:46,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:46:46,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895036359] [2023-12-19 15:46:46,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:46,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:46:46,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:46,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:46:46,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:46:46,190 INFO L87 Difference]: Start difference. First operand 217 states and 298 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:47,506 INFO L93 Difference]: Finished difference Result 595 states and 820 transitions. [2023-12-19 15:46:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-19 15:46:47,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:47,508 INFO L225 Difference]: With dead ends: 595 [2023-12-19 15:46:47,508 INFO L226 Difference]: Without dead ends: 393 [2023-12-19 15:46:47,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=329, Invalid=931, Unknown=0, NotChecked=0, Total=1260 [2023-12-19 15:46:47,509 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 508 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:47,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1189 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 15:46:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-12-19 15:46:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 252. [2023-12-19 15:46:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 224 states have (on average 1.34375) internal successors, (301), 226 states have internal predecessors, (301), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:46:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 347 transitions. [2023-12-19 15:46:47,517 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 347 transitions. Word has length 129 [2023-12-19 15:46:47,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:47,518 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 347 transitions. [2023-12-19 15:46:47,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:47,518 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 347 transitions. [2023-12-19 15:46:47,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:47,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:47,519 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] [2023-12-19 15:46:47,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:47,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 15:46:47,720 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:47,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash -420543, now seen corresponding path program 1 times [2023-12-19 15:46:47,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:47,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063334601] [2023-12-19 15:46:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:47,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:47,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:47,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984535264] [2023-12-19 15:46:47,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:47,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:47,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:47,740 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:47,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 15:46:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:47,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-19 15:46:47,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:48,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:48,003 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 [2023-12-19 15:46:48,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:48,042 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 41 treesize of output 28 [2023-12-19 15:46:48,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:48,063 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 41 treesize of output 28 [2023-12-19 15:46:48,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:48,071 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 54 treesize of output 48 [2023-12-19 15:46:48,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:48,125 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 72 treesize of output 24 [2023-12-19 15:46:48,132 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:48,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:48,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:48,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063334601] [2023-12-19 15:46:48,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:48,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984535264] [2023-12-19 15:46:48,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984535264] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:48,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:48,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:48,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956506732] [2023-12-19 15:46:48,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:48,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:48,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:48,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:48,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:48,135 INFO L87 Difference]: Start difference. First operand 252 states and 347 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:48,479 INFO L93 Difference]: Finished difference Result 540 states and 742 transitions. [2023-12-19 15:46:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:46:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:48,481 INFO L225 Difference]: With dead ends: 540 [2023-12-19 15:46:48,481 INFO L226 Difference]: Without dead ends: 303 [2023-12-19 15:46:48,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:48,482 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 158 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:48,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 510 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:46:48,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-19 15:46:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 251. [2023-12-19 15:46:48,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 223 states have (on average 1.3408071748878925) internal successors, (299), 225 states have internal predecessors, (299), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:46:48,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 345 transitions. [2023-12-19 15:46:48,490 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 345 transitions. Word has length 129 [2023-12-19 15:46:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:48,491 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 345 transitions. [2023-12-19 15:46:48,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 345 transitions. [2023-12-19 15:46:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:48,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:48,492 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] [2023-12-19 15:46:48,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-12-19 15:46:48,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:48,718 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:48,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:48,718 INFO L85 PathProgramCache]: Analyzing trace with hash 544070892, now seen corresponding path program 1 times [2023-12-19 15:46:48,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:48,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438918131] [2023-12-19 15:46:48,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:48,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:48,737 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:48,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516201033] [2023-12-19 15:46:48,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:48,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:48,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:48,757 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:48,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 15:46:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:48,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-19 15:46:48,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:49,318 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 26 [2023-12-19 15:46:49,468 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 26 [2023-12-19 15:46:49,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:49,523 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 47 treesize of output 49 [2023-12-19 15:46:50,292 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:50,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 30 [2023-12-19 15:46:50,347 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:50,347 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:50,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:50,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438918131] [2023-12-19 15:46:50,347 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:50,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516201033] [2023-12-19 15:46:50,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516201033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:50,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:50,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:50,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045613415] [2023-12-19 15:46:50,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:50,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:46:50,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:50,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:46:50,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:46:50,348 INFO L87 Difference]: Start difference. First operand 251 states and 345 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:56,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:56,220 INFO L93 Difference]: Finished difference Result 522 states and 718 transitions. [2023-12-19 15:46:56,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:46:56,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:56,222 INFO L225 Difference]: With dead ends: 522 [2023-12-19 15:46:56,222 INFO L226 Difference]: Without dead ends: 286 [2023-12-19 15:46:56,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:46:56,222 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 209 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:56,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 282 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-12-19 15:46:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-19 15:46:56,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 246. [2023-12-19 15:46:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 218 states have (on average 1.3302752293577982) internal successors, (290), 220 states have internal predecessors, (290), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-19 15:46:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 336 transitions. [2023-12-19 15:46:56,230 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 336 transitions. Word has length 129 [2023-12-19 15:46:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:56,230 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 336 transitions. [2023-12-19 15:46:56,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 336 transitions. [2023-12-19 15:46:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:56,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:56,231 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] [2023-12-19 15:46:56,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:56,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 15:46:56,432 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:56,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash 258592961, now seen corresponding path program 1 times [2023-12-19 15:46:56,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:56,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146201463] [2023-12-19 15:46:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:56,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:56,451 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:56,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908750819] [2023-12-19 15:46:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:56,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:56,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:56,452 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:56,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 15:46:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:56,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:46:56,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:56,669 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:56,669 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 [2023-12-19 15:46:56,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:56,685 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 39 treesize of output 26 [2023-12-19 15:46:56,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:56,692 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 39 treesize of output 26 [2023-12-19 15:46:56,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:56,697 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 52 treesize of output 46 [2023-12-19 15:46:56,748 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:56,749 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 70 treesize of output 22 [2023-12-19 15:46:56,757 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:56,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:56,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:56,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146201463] [2023-12-19 15:46:56,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:56,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908750819] [2023-12-19 15:46:56,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908750819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:56,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:56,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:56,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3276955] [2023-12-19 15:46:56,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:56,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:56,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:56,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:56,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:56,759 INFO L87 Difference]: Start difference. First operand 246 states and 336 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:57,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:57,069 INFO L93 Difference]: Finished difference Result 496 states and 675 transitions. [2023-12-19 15:46:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:46:57,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:57,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:57,071 INFO L225 Difference]: With dead ends: 496 [2023-12-19 15:46:57,071 INFO L226 Difference]: Without dead ends: 265 [2023-12-19 15:46:57,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:57,072 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 149 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:57,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 489 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:46:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-19 15:46:57,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 226. [2023-12-19 15:46:57,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 201 states have (on average 1.3233830845771144) internal successors, (266), 202 states have internal predecessors, (266), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 306 transitions. [2023-12-19 15:46:57,100 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 306 transitions. Word has length 129 [2023-12-19 15:46:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:57,100 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 306 transitions. [2023-12-19 15:46:57,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-12-19 15:46:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 306 transitions. [2023-12-19 15:46:57,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-19 15:46:57,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:57,101 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] [2023-12-19 15:46:57,113 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:57,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-19 15:46:57,308 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:57,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:57,309 INFO L85 PathProgramCache]: Analyzing trace with hash -134434049, now seen corresponding path program 1 times [2023-12-19 15:46:57,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:57,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488526895] [2023-12-19 15:46:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:57,328 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:57,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [74803568] [2023-12-19 15:46:57,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:57,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:57,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:57,350 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:57,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 15:46:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:57,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-19 15:46:57,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:57,580 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:57,580 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 [2023-12-19 15:46:57,589 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 21 treesize of output 21 [2023-12-19 15:46:57,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:57,604 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 37 treesize of output 24 [2023-12-19 15:46:57,609 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:57,609 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 44 [2023-12-19 15:46:57,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:57,704 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 70 treesize of output 22 [2023-12-19 15:46:57,738 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:57,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:57,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:57,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488526895] [2023-12-19 15:46:57,739 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74803568] [2023-12-19 15:46:57,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [74803568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:57,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:57,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 15:46:57,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275874256] [2023-12-19 15:46:57,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:57,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 15:46:57,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:57,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 15:46:57,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:46:57,740 INFO L87 Difference]: Start difference. First operand 226 states and 306 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:58,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:58,620 INFO L93 Difference]: Finished difference Result 514 states and 693 transitions. [2023-12-19 15:46:58,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-19 15:46:58,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 129 [2023-12-19 15:46:58,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:58,621 INFO L225 Difference]: With dead ends: 514 [2023-12-19 15:46:58,621 INFO L226 Difference]: Without dead ends: 303 [2023-12-19 15:46:58,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=242, Invalid=570, Unknown=0, NotChecked=0, Total=812 [2023-12-19 15:46:58,622 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 325 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:58,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 1154 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 15:46:58,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2023-12-19 15:46:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 224. [2023-12-19 15:46:58,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 199 states have (on average 1.3266331658291457) internal successors, (264), 200 states have internal predecessors, (264), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:58,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 304 transitions. [2023-12-19 15:46:58,653 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 304 transitions. Word has length 129 [2023-12-19 15:46:58,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:58,653 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 304 transitions. [2023-12-19 15:46:58,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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) [2023-12-19 15:46:58,654 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 304 transitions. [2023-12-19 15:46:58,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-19 15:46:58,654 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:58,654 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] [2023-12-19 15:46:58,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:58,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-19 15:46:58,861 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:58,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:58,861 INFO L85 PathProgramCache]: Analyzing trace with hash -885886524, now seen corresponding path program 1 times [2023-12-19 15:46:58,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:58,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947341139] [2023-12-19 15:46:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:58,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:58,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1818581851] [2023-12-19 15:46:58,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:58,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:58,912 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) [2023-12-19 15:46:58,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-19 15:46:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:59,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 15:46:59,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:59,211 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:59,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 14 [2023-12-19 15:46:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:46:59,217 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:59,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:59,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947341139] [2023-12-19 15:46:59,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:59,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818581851] [2023-12-19 15:46:59,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818581851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:59,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:59,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:59,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403004482] [2023-12-19 15:46:59,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:59,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:59,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:59,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:59,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:59,219 INFO L87 Difference]: Start difference. First operand 224 states and 304 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2023-12-19 15:46:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:59,544 INFO L93 Difference]: Finished difference Result 565 states and 741 transitions. [2023-12-19 15:46:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:46:59,545 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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 [2023-12-19 15:46:59,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:59,546 INFO L225 Difference]: With dead ends: 565 [2023-12-19 15:46:59,546 INFO L226 Difference]: Without dead ends: 356 [2023-12-19 15:46:59,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:59,547 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 95 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:59,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 495 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:46:59,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-12-19 15:46:59,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 236. [2023-12-19 15:46:59,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 211 states have (on average 1.3270142180094786) internal successors, (280), 212 states have internal predecessors, (280), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:46:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 320 transitions. [2023-12-19 15:46:59,554 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 320 transitions. Word has length 130 [2023-12-19 15:46:59,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:59,555 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 320 transitions. [2023-12-19 15:46:59,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 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) [2023-12-19 15:46:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 320 transitions. [2023-12-19 15:46:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 15:46:59,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:59,556 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, 1, 1] [2023-12-19 15:46:59,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:59,762 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 [2023-12-19 15:46:59,763 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:59,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:59,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1704511411, now seen corresponding path program 1 times [2023-12-19 15:46:59,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:59,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870602145] [2023-12-19 15:46:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:59,782 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:59,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846767205] [2023-12-19 15:46:59,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:59,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:59,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:59,783 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) [2023-12-19 15:46:59,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-19 15:47:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:00,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 15:47:00,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:00,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:00,040 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 [2023-12-19 15:47:00,045 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 32 treesize of output 30 [2023-12-19 15:47:00,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:00,141 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 78 treesize of output 30 [2023-12-19 15:47:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:00,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:47:00,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:00,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870602145] [2023-12-19 15:47:00,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:00,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846767205] [2023-12-19 15:47:00,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846767205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:47:00,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:47:00,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:47:00,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100684746] [2023-12-19 15:47:00,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:00,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:47:00,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:00,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:47:00,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:47:00,155 INFO L87 Difference]: Start difference. First operand 236 states and 320 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-12-19 15:47:00,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:00,532 INFO L93 Difference]: Finished difference Result 302 states and 394 transitions. [2023-12-19 15:47:00,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:47:00,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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 132 [2023-12-19 15:47:00,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:00,534 INFO L225 Difference]: With dead ends: 302 [2023-12-19 15:47:00,534 INFO L226 Difference]: Without dead ends: 300 [2023-12-19 15:47:00,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-19 15:47:00,535 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 146 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:00,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 484 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:47:00,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-12-19 15:47:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 238. [2023-12-19 15:47:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 213 states have (on average 1.323943661971831) internal successors, (282), 214 states have internal predecessors, (282), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:47:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 322 transitions. [2023-12-19 15:47:00,542 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 322 transitions. Word has length 132 [2023-12-19 15:47:00,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:00,542 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 322 transitions. [2023-12-19 15:47:00,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 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) [2023-12-19 15:47:00,542 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 322 transitions. [2023-12-19 15:47:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 15:47:00,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:00,543 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, 1, 1] [2023-12-19 15:47:00,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-19 15:47:00,752 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 [2023-12-19 15:47:00,752 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:00,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1704570993, now seen corresponding path program 1 times [2023-12-19 15:47:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192630424] [2023-12-19 15:47:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:00,782 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:00,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1887541236] [2023-12-19 15:47:00,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:00,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:00,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:00,792 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) [2023-12-19 15:47:00,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-19 15:47:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:01,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 15:47:01,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:01,350 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:01,350 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 37 treesize of output 13 [2023-12-19 15:47:01,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:01,356 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 32 [2023-12-19 15:47:01,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:01,363 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 58 treesize of output 64 [2023-12-19 15:47:01,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:01,493 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 130 treesize of output 52 [2023-12-19 15:47:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:01,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:47:01,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:01,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192630424] [2023-12-19 15:47:01,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:01,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887541236] [2023-12-19 15:47:01,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887541236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:47:01,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:47:01,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:47:01,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452479393] [2023-12-19 15:47:01,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:01,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:47:01,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:01,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:47:01,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:47:01,515 INFO L87 Difference]: Start difference. First operand 238 states and 322 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2023-12-19 15:47:02,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:02,238 INFO L93 Difference]: Finished difference Result 675 states and 893 transitions. [2023-12-19 15:47:02,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 15:47:02,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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 132 [2023-12-19 15:47:02,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:02,240 INFO L225 Difference]: With dead ends: 675 [2023-12-19 15:47:02,240 INFO L226 Difference]: Without dead ends: 452 [2023-12-19 15:47:02,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:47:02,241 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 179 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:02,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 692 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:47:02,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2023-12-19 15:47:02,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 358. [2023-12-19 15:47:02,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 333 states have (on average 1.3243243243243243) internal successors, (441), 334 states have internal predecessors, (441), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:47:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 481 transitions. [2023-12-19 15:47:02,249 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 481 transitions. Word has length 132 [2023-12-19 15:47:02,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:02,250 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 481 transitions. [2023-12-19 15:47:02,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2023-12-19 15:47:02,250 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 481 transitions. [2023-12-19 15:47:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 15:47:02,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:02,251 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, 1, 1] [2023-12-19 15:47:02,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-19 15:47:02,475 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 [2023-12-19 15:47:02,475 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:02,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:02,476 INFO L85 PathProgramCache]: Analyzing trace with hash 451719241, now seen corresponding path program 1 times [2023-12-19 15:47:02,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:02,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200631216] [2023-12-19 15:47:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:02,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:02,527 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:02,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423384348] [2023-12-19 15:47:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:02,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:02,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:02,528 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) [2023-12-19 15:47:02,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-19 15:47:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:02,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-19 15:47:02,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:02,775 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 [2023-12-19 15:47:02,798 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:02,798 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 34 treesize of output 14 [2023-12-19 15:47:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-19 15:47:02,833 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:47:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:02,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:02,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200631216] [2023-12-19 15:47:02,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:02,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423384348] [2023-12-19 15:47:02,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423384348] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:47:02,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:47:02,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 17 [2023-12-19 15:47:02,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615127165] [2023-12-19 15:47:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:02,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:47:02,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:47:02,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:47:02,964 INFO L87 Difference]: Start difference. First operand 358 states and 481 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2023-12-19 15:47:03,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:03,935 INFO L93 Difference]: Finished difference Result 1296 states and 1651 transitions. [2023-12-19 15:47:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 15:47:03,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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 132 [2023-12-19 15:47:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:03,938 INFO L225 Difference]: With dead ends: 1296 [2023-12-19 15:47:03,938 INFO L226 Difference]: Without dead ends: 953 [2023-12-19 15:47:03,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2023-12-19 15:47:03,940 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 278 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:03,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1478 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 15:47:03,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2023-12-19 15:47:03,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 607. [2023-12-19 15:47:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 564 states have (on average 1.299645390070922) internal successors, (733), 566 states have internal predecessors, (733), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-19 15:47:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 803 transitions. [2023-12-19 15:47:03,966 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 803 transitions. Word has length 132 [2023-12-19 15:47:03,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:03,967 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 803 transitions. [2023-12-19 15:47:03,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2023-12-19 15:47:03,967 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 803 transitions. [2023-12-19 15:47:03,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 15:47:03,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:03,968 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, 1, 1] [2023-12-19 15:47:03,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-19 15:47:04,174 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 [2023-12-19 15:47:04,175 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:04,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash -559398009, now seen corresponding path program 1 times [2023-12-19 15:47:04,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:04,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067220298] [2023-12-19 15:47:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:04,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:04,194 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:04,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846702353] [2023-12-19 15:47:04,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:04,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:04,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:04,195 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:47:04,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-19 15:47:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:04,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:47:04,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:04,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:04,466 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 37 treesize of output 28 [2023-12-19 15:47:04,473 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:04,473 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 40 treesize of output 16 [2023-12-19 15:47:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:04,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:47:04,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:04,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067220298] [2023-12-19 15:47:04,480 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:04,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846702353] [2023-12-19 15:47:04,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846702353] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:47:04,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:47:04,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:47:04,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844873085] [2023-12-19 15:47:04,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:04,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:47:04,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:47:04,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:47:04,482 INFO L87 Difference]: Start difference. First operand 607 states and 803 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-12-19 15:47:04,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:04,945 INFO L93 Difference]: Finished difference Result 1345 states and 1747 transitions. [2023-12-19 15:47:04,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:47:04,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 132 [2023-12-19 15:47:04,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:04,950 INFO L225 Difference]: With dead ends: 1345 [2023-12-19 15:47:04,950 INFO L226 Difference]: Without dead ends: 753 [2023-12-19 15:47:04,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:47:04,951 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 165 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:04,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 658 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:47:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-12-19 15:47:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 553. [2023-12-19 15:47:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 510 states have (on average 1.280392156862745) internal successors, (653), 512 states have internal predecessors, (653), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-19 15:47:04,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 723 transitions. [2023-12-19 15:47:04,968 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 723 transitions. Word has length 132 [2023-12-19 15:47:04,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:04,968 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 723 transitions. [2023-12-19 15:47:04,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-12-19 15:47:04,969 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 723 transitions. [2023-12-19 15:47:04,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 15:47:04,970 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:04,970 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, 1, 1] [2023-12-19 15:47:04,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-19 15:47:05,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:05,176 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:05,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:05,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1237224501, now seen corresponding path program 1 times [2023-12-19 15:47:05,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:05,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429824254] [2023-12-19 15:47:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:05,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:05,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:05,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839559236] [2023-12-19 15:47:05,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:05,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:05,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:05,196 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:47:05,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-19 15:47:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:05,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 15:47:05,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:05,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:05,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2023-12-19 15:47:05,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:05,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 14 [2023-12-19 15:47:05,459 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:05,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:47:05,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:05,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429824254] [2023-12-19 15:47:05,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:05,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839559236] [2023-12-19 15:47:05,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839559236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:47:05,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:47:05,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:47:05,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382351331] [2023-12-19 15:47:05,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:05,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:47:05,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:05,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:47:05,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:47:05,461 INFO L87 Difference]: Start difference. First operand 553 states and 723 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-12-19 15:47:05,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:05,887 INFO L93 Difference]: Finished difference Result 1304 states and 1679 transitions. [2023-12-19 15:47:05,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:47:05,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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 132 [2023-12-19 15:47:05,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:05,891 INFO L225 Difference]: With dead ends: 1304 [2023-12-19 15:47:05,891 INFO L226 Difference]: Without dead ends: 766 [2023-12-19 15:47:05,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:47:05,892 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 167 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:05,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 384 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:47:05,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-12-19 15:47:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 553. [2023-12-19 15:47:05,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 510 states have (on average 1.2647058823529411) internal successors, (645), 512 states have internal predecessors, (645), 35 states have call successors, (35), 7 states have call predecessors, (35), 7 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-19 15:47:05,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 715 transitions. [2023-12-19 15:47:05,914 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 715 transitions. Word has length 132 [2023-12-19 15:47:05,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:05,915 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 715 transitions. [2023-12-19 15:47:05,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-12-19 15:47:05,915 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 715 transitions. [2023-12-19 15:47:05,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 15:47:05,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:05,916 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, 1, 1] [2023-12-19 15:47:05,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-12-19 15:47:06,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:06,123 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:06,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:06,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2046625545, now seen corresponding path program 1 times [2023-12-19 15:47:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398498383] [2023-12-19 15:47:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:06,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:06,161 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:06,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985674949] [2023-12-19 15:47:06,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:06,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:06,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:06,175 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:47:06,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-19 15:47:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:06,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-19 15:47:06,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:06,443 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 [2023-12-19 15:47:06,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:06,465 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 34 treesize of output 14 [2023-12-19 15:47:06,499 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 9 proven. 33 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-19 15:47:06,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:47:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:06,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:06,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398498383] [2023-12-19 15:47:06,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:06,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985674949] [2023-12-19 15:47:06,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985674949] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:47:06,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:47:06,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 17 [2023-12-19 15:47:06,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367146793] [2023-12-19 15:47:06,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:06,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:47:06,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:06,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:47:06,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2023-12-19 15:47:06,612 INFO L87 Difference]: Start difference. First operand 553 states and 715 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2023-12-19 15:47:07,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:07,528 INFO L93 Difference]: Finished difference Result 1433 states and 1802 transitions. [2023-12-19 15:47:07,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 15:47:07,529 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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 132 [2023-12-19 15:47:07,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:07,532 INFO L225 Difference]: With dead ends: 1433 [2023-12-19 15:47:07,532 INFO L226 Difference]: Without dead ends: 895 [2023-12-19 15:47:07,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870 [2023-12-19 15:47:07,533 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 232 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:07,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 1464 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:47:07,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2023-12-19 15:47:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 398. [2023-12-19 15:47:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 362 states have (on average 1.3038674033149171) internal successors, (472), 363 states have internal predecessors, (472), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-19 15:47:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 532 transitions. [2023-12-19 15:47:07,551 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 532 transitions. Word has length 132 [2023-12-19 15:47:07,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:07,551 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 532 transitions. [2023-12-19 15:47:07,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2023-12-19 15:47:07,551 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 532 transitions. [2023-12-19 15:47:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 15:47:07,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:07,552 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, 1, 1, 1, 1] [2023-12-19 15:47:07,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-19 15:47:07,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:07,759 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:07,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 2133823724, now seen corresponding path program 1 times [2023-12-19 15:47:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812660315] [2023-12-19 15:47:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:07,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:07,779 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:07,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707997883] [2023-12-19 15:47:07,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:07,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:07,780 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:47:07,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-19 15:47:08,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:08,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-19 15:47:08,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:08,348 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:08,348 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 43 treesize of output 39 [2023-12-19 15:47:08,387 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:08,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:47:08,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:08,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812660315] [2023-12-19 15:47:08,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:08,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707997883] [2023-12-19 15:47:08,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707997883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:47:08,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:47:08,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:47:08,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476758530] [2023-12-19 15:47:08,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:08,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:47:08,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:08,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:47:08,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:47:08,389 INFO L87 Difference]: Start difference. First operand 398 states and 532 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2023-12-19 15:47:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:08,772 INFO L93 Difference]: Finished difference Result 773 states and 1024 transitions. [2023-12-19 15:47:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:47:08,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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 134 [2023-12-19 15:47:08,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:08,773 INFO L225 Difference]: With dead ends: 773 [2023-12-19 15:47:08,774 INFO L226 Difference]: Without dead ends: 436 [2023-12-19 15:47:08,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:47:08,775 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 56 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:08,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 419 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:47:08,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-12-19 15:47:08,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 398. [2023-12-19 15:47:08,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 362 states have (on average 1.3011049723756907) internal successors, (471), 363 states have internal predecessors, (471), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 29 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-19 15:47:08,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 531 transitions. [2023-12-19 15:47:08,793 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 531 transitions. Word has length 134 [2023-12-19 15:47:08,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:08,794 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 531 transitions. [2023-12-19 15:47:08,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 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) [2023-12-19 15:47:08,794 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 531 transitions. [2023-12-19 15:47:08,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 15:47:08,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:08,795 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, 1, 1, 1, 1] [2023-12-19 15:47:08,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-12-19 15:47:09,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-19 15:47:09,003 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:09,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:09,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1999810218, now seen corresponding path program 1 times [2023-12-19 15:47:09,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:09,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566191293] [2023-12-19 15:47:09,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:09,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:09,039 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:09,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486536411] [2023-12-19 15:47:09,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:09,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:09,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:09,049 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:47:09,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-19 15:47:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:09,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-19 15:47:09,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:09,846 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 30 treesize of output 21 [2023-12-19 15:47:10,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:10,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:10,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:10,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:10,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:10,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:10,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:10,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:10,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:10,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:10,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:10,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:11,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:11,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:11,298 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:11,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 40 [2023-12-19 15:47:11,363 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:11,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 54 treesize of output 33 [2023-12-19 15:47:11,395 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:11,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 46 [2023-12-19 15:47:11,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:11,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 24 [2023-12-19 15:47:11,540 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2023-12-19 15:47:11,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:47:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-19 15:47:14,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:14,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566191293] [2023-12-19 15:47:14,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:14,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486536411] [2023-12-19 15:47:14,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486536411] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 15:47:14,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 15:47:14,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2023-12-19 15:47:14,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530463884] [2023-12-19 15:47:14,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 15:47:14,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-19 15:47:14,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:14,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-19 15:47:14,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2023-12-19 15:47:14,057 INFO L87 Difference]: Start difference. First operand 398 states and 531 transitions. Second operand has 18 states, 16 states have (on average 7.5) internal successors, (120), 18 states have internal predecessors, (120), 6 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-19 15:47:21,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:21,602 INFO L93 Difference]: Finished difference Result 1029 states and 1360 transitions. [2023-12-19 15:47:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 15:47:21,603 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 7.5) internal successors, (120), 18 states have internal predecessors, (120), 6 states have call successors, (30), 3 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 134 [2023-12-19 15:47:21,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:21,605 INFO L225 Difference]: With dead ends: 1029 [2023-12-19 15:47:21,605 INFO L226 Difference]: Without dead ends: 575 [2023-12-19 15:47:21,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2023-12-19 15:47:21,606 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 119 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:21,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 583 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-12-19 15:47:21,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-19 15:47:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 400. [2023-12-19 15:47:21,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 364 states have (on average 1.2994505494505495) internal successors, (473), 364 states have internal predecessors, (473), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-19 15:47:21,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 533 transitions. [2023-12-19 15:47:21,621 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 533 transitions. Word has length 134 [2023-12-19 15:47:21,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:21,621 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 533 transitions. [2023-12-19 15:47:21,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 7.5) internal successors, (120), 18 states have internal predecessors, (120), 6 states have call successors, (30), 3 states have call predecessors, (30), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-12-19 15:47:21,621 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 533 transitions. [2023-12-19 15:47:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 15:47:21,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:21,622 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, 1, 1, 1, 1] [2023-12-19 15:47:21,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-12-19 15:47:21,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-19 15:47:21,831 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:21,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:21,831 INFO L85 PathProgramCache]: Analyzing trace with hash -179364866, now seen corresponding path program 1 times [2023-12-19 15:47:21,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:21,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627047893] [2023-12-19 15:47:21,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:21,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:21,859 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:21,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044482438] [2023-12-19 15:47:21,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:21,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:21,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:21,861 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:47:21,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-12-19 15:47:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:47:22,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-19 15:47:22,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:47:22,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:47:22,374 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 37 treesize of output 13 [2023-12-19 15:47:22,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:47:22,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:47:22,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:47:22,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:47:22,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:47:22,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:47:22,389 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 21 treesize of output 21 [2023-12-19 15:47:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-19 15:47:22,409 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:47:22,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:47:22,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627047893] [2023-12-19 15:47:22,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:47:22,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044482438] [2023-12-19 15:47:22,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044482438] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:47:22,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:47:22,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:47:22,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396817582] [2023-12-19 15:47:22,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:47:22,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:47:22,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:47:22,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:47:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:47:22,411 INFO L87 Difference]: Start difference. First operand 400 states and 533 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (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) [2023-12-19 15:47:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:47:22,713 INFO L93 Difference]: Finished difference Result 775 states and 1024 transitions. [2023-12-19 15:47:22,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:47:22,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (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 134 [2023-12-19 15:47:22,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:47:22,715 INFO L225 Difference]: With dead ends: 775 [2023-12-19 15:47:22,715 INFO L226 Difference]: Without dead ends: 438 [2023-12-19 15:47:22,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:47:22,716 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 54 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:47:22,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 315 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:47:22,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-12-19 15:47:22,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 400. [2023-12-19 15:47:22,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 364 states have (on average 1.2967032967032968) internal successors, (472), 364 states have internal predecessors, (472), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-19 15:47:22,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 532 transitions. [2023-12-19 15:47:22,729 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 532 transitions. Word has length 134 [2023-12-19 15:47:22,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:47:22,730 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 532 transitions. [2023-12-19 15:47:22,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (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) [2023-12-19 15:47:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 532 transitions. [2023-12-19 15:47:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 15:47:22,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:47:22,731 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, 1, 1, 1, 1] [2023-12-19 15:47:22,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-12-19 15:47:22,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-12-19 15:47:22,939 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:47:22,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:47:22,940 INFO L85 PathProgramCache]: Analyzing trace with hash -313378372, now seen corresponding path program 1 times [2023-12-19 15:47:22,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:47:22,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122004805] [2023-12-19 15:47:22,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:22,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:47:22,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:47:22,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [158023621] [2023-12-19 15:47:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:47:22,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:47:22,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:47:22,978 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:47:22,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-12-19 15:47:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:47:24,170 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 15:47:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:47:24,685 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 15:47:24,685 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 15:47:24,686 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:47:24,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-12-19 15:47:24,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-19 15:47:24,901 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, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:47:24,903 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:47:24,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:47:24 BoogieIcfgContainer [2023-12-19 15:47:24,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:47:24,967 INFO L158 Benchmark]: Toolchain (without parser) took 52177.80ms. Allocated memory was 186.6MB in the beginning and 313.5MB in the end (delta: 126.9MB). Free memory was 135.9MB in the beginning and 150.2MB in the end (delta: -14.2MB). Peak memory consumption was 113.0MB. Max. memory is 8.0GB. [2023-12-19 15:47:24,967 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 142.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:47:24,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.06ms. Allocated memory is still 186.6MB. Free memory was 135.9MB in the beginning and 119.5MB in the end (delta: 16.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 15:47:24,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.79ms. Allocated memory is still 186.6MB. Free memory was 119.1MB in the beginning and 114.6MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:47:24,968 INFO L158 Benchmark]: Boogie Preprocessor took 57.67ms. Allocated memory is still 186.6MB. Free memory was 114.6MB in the beginning and 109.7MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 15:47:24,968 INFO L158 Benchmark]: RCFGBuilder took 584.92ms. Allocated memory is still 186.6MB. Free memory was 109.4MB in the beginning and 129.3MB in the end (delta: -20.0MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2023-12-19 15:47:24,968 INFO L158 Benchmark]: TraceAbstraction took 51260.21ms. Allocated memory was 186.6MB in the beginning and 313.5MB in the end (delta: 126.9MB). Free memory was 128.3MB in the beginning and 150.2MB in the end (delta: -21.9MB). Peak memory consumption was 105.0MB. Max. memory is 8.0GB. [2023-12-19 15:47:24,969 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 142.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 223.06ms. Allocated memory is still 186.6MB. Free memory was 135.9MB in the beginning and 119.5MB in the end (delta: 16.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.79ms. Allocated memory is still 186.6MB. Free memory was 119.1MB in the beginning and 114.6MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.67ms. Allocated memory is still 186.6MB. Free memory was 114.6MB in the beginning and 109.7MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 584.92ms. Allocated memory is still 186.6MB. Free memory was 109.4MB in the beginning and 129.3MB in the end (delta: -20.0MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * TraceAbstraction took 51260.21ms. Allocated memory was 186.6MB in the beginning and 313.5MB in the end (delta: 126.9MB). Free memory was 128.3MB in the beginning and 150.2MB in the end (delta: -21.9MB). Peak memory consumption was 105.0MB. 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: [L37] unsigned char isInitial = 0; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L38-L52] struct WrapperStruct00 WrapperStruct00 = { 5, -25, 4, 4, 4, 8, 10, 99.6, 127.5, 16.5, 256.5, 4288034294, 0 }; [L53] unsigned long int last_1_WrapperStruct00_var_1_12 = 10; [L54] unsigned char last_1_WrapperStruct00_var_1_18 = 0; [L113] isInitial = 1 [L114] FCALL initially() [L115] COND TRUE 1 [L116] CALL updateLastVariables() [L105] EXPR WrapperStruct00.var_1_12 [L105] last_1_WrapperStruct00_var_1_12 = WrapperStruct00.var_1_12 [L106] EXPR WrapperStruct00.var_1_18 [L106] last_1_WrapperStruct00_var_1_18 = WrapperStruct00.var_1_18 [L116] RET updateLastVariables() [L117] CALL updateVariables() [L80] WrapperStruct00.var_1_3 = __VERIFIER_nondet_short() [L81] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L81] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= -32768) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L81] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= -32768) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L82] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L82] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L82] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L83] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L83] CALL assume_abort_if_not(WrapperStruct00.var_1_3 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L83] RET assume_abort_if_not(WrapperStruct00.var_1_3 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L84] WrapperStruct00.var_1_10 = __VERIFIER_nondet_uchar() [L85] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L86] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L87] WrapperStruct00.var_1_11 = __VERIFIER_nondet_uchar() [L88] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L89] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L90] WrapperStruct00.var_1_13 = __VERIFIER_nondet_float() [L91] EXPR WrapperStruct00.var_1_13 [L91] EXPR WrapperStruct00.var_1_13 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L91] EXPR WrapperStruct00.var_1_13 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L91] EXPR WrapperStruct00.var_1_13 [L91] EXPR WrapperStruct00.var_1_13 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L91] EXPR (WrapperStruct00.var_1_13 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L91] EXPR (WrapperStruct00.var_1_13 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L91] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L91] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L92] WrapperStruct00.var_1_14 = __VERIFIER_nondet_float() [L93] EXPR WrapperStruct00.var_1_14 [L93] EXPR WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L93] EXPR WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L93] EXPR WrapperStruct00.var_1_14 [L93] EXPR WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L93] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L93] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L93] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L93] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L94] WrapperStruct00.var_1_15 = __VERIFIER_nondet_float() [L95] EXPR WrapperStruct00.var_1_15 [L95] EXPR WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L95] EXPR WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F [L95] EXPR WrapperStruct00.var_1_15 [L95] EXPR WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L95] EXPR (WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L95] EXPR (WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L95] CALL assume_abort_if_not((WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L95] RET assume_abort_if_not((WrapperStruct00.var_1_15 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_15 <= -1.0e-20F) || (WrapperStruct00.var_1_15 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_15 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L96] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_15 != 0.0F) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_15 != 0.0F) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L97] WrapperStruct00.var_1_16 = __VERIFIER_nondet_float() [L98] EXPR WrapperStruct00.var_1_16 [L98] EXPR WrapperStruct00.var_1_16 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L98] EXPR WrapperStruct00.var_1_16 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F [L98] EXPR WrapperStruct00.var_1_16 [L98] EXPR WrapperStruct00.var_1_16 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L98] EXPR (WrapperStruct00.var_1_16 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L98] EXPR (WrapperStruct00.var_1_16 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L98] CALL assume_abort_if_not((WrapperStruct00.var_1_16 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L98] RET assume_abort_if_not((WrapperStruct00.var_1_16 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_16 <= -1.0e-20F) || (WrapperStruct00.var_1_16 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_16 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L99] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_16 != 0.0F) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_16 != 0.0F) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L100] WrapperStruct00.var_1_17 = __VERIFIER_nondet_ulong() [L101] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L102] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L117] RET updateVariables() [L118] CALL step() [L58] EXPR WrapperStruct00.var_1_3 [L58] unsigned long int stepLocal_2 = last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3; [L59] COND TRUE stepLocal_2 != (last_1_WrapperStruct00_var_1_18 - 64) [L60] EXPR WrapperStruct00.var_1_10 [L60] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L60] EXPR ((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11) [L60] EXPR WrapperStruct00.var_1_10 [L60] EXPR ((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0, stepLocal_2=3] [L60] WrapperStruct00.var_1_8 = ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))) [L64] EXPR WrapperStruct00.var_1_13 [L64] EXPR WrapperStruct00.var_1_14 [L64] EXPR WrapperStruct00.var_1_15 [L64] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L64] EXPR ((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16) [L64] EXPR WrapperStruct00.var_1_16 [L64] EXPR ((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0, stepLocal_2=3] [L64] COND TRUE (- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16)))) [L65] EXPR WrapperStruct00.var_1_10 [L65] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L65] EXPR ((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8) [L65] EXPR WrapperStruct00.var_1_8 [L65] EXPR ((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0, stepLocal_2=3] [L65] WrapperStruct00.var_1_12 = (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))) [L69] EXPR WrapperStruct00.var_1_11 [L69] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_11 [L70] EXPR WrapperStruct00.var_1_18 [L70] WrapperStruct00.var_1_7 = WrapperStruct00.var_1_18 [L71] EXPR WrapperStruct00.var_1_3 [L71] signed long int stepLocal_1 = - WrapperStruct00.var_1_3; [L72] EXPR WrapperStruct00.var_1_7 [L72] EXPR WrapperStruct00.var_1_3 [L72] signed long int stepLocal_0 = WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3; [L73] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L73] COND FALSE !(stepLocal_0 >= WrapperStruct00.var_1_7) [L118] RET step() [L119] CALL, EXPR property() [L109] EXPR WrapperStruct00.var_1_7 [L109] EXPR WrapperStruct00.var_1_3 [L109] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1 [L109] EXPR ((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR (((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR (((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18)) [L109] EXPR WrapperStruct00.var_1_7 [L109] EXPR WrapperStruct00.var_1_18 [L109] EXPR (((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10)))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10)))))) [L109] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))) [L109] EXPR WrapperStruct00.var_1_8 [L109] EXPR WrapperStruct00.var_1_10 [L109] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11) [L109] EXPR WrapperStruct00.var_1_10 [L109] EXPR ((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10)))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR (((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && (((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR (((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && (((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10)))) [L109] EXPR WrapperStruct00.var_1_13 [L109] EXPR WrapperStruct00.var_1_14 [L109] EXPR WrapperStruct00.var_1_15 [L109] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16) [L109] EXPR WrapperStruct00.var_1_15 [L109] EXPR ((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10))) [L109] EXPR WrapperStruct00.var_1_12 [L109] EXPR WrapperStruct00.var_1_17 [L109] EXPR WrapperStruct00.var_1_10 [L109] EXPR ((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR (((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && (((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && (((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10))))) && (WrapperStruct00.var_1_18 == ((unsigned char) WrapperStruct00.var_1_11)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109] EXPR ((((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && (((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10))))) && (WrapperStruct00.var_1_18 == ((unsigned char) WrapperStruct00.var_1_11)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L109-L110] return ((((((WrapperStruct00.var_1_7 / WrapperStruct00.var_1_3) >= WrapperStruct00.var_1_7) ? (((- WrapperStruct00.var_1_3) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_1 == ((unsigned short int) ((((WrapperStruct00.var_1_8) < (WrapperStruct00.var_1_18)) ? (WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_18))))) : 1) : 1) && (WrapperStruct00.var_1_7 == ((unsigned short int) WrapperStruct00.var_1_18))) && (((last_1_WrapperStruct00_var_1_12 / WrapperStruct00.var_1_3) != (last_1_WrapperStruct00_var_1_18 - 64)) ? (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_10) > (WrapperStruct00.var_1_11)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_11))))) : (WrapperStruct00.var_1_8 == ((unsigned char) ((((WrapperStruct00.var_1_11) < (WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_10))))))) && (((- (WrapperStruct00.var_1_13 / 0.6f)) > ((WrapperStruct00.var_1_14 + 3.25f) / ((((WrapperStruct00.var_1_15) < (WrapperStruct00.var_1_16)) ? (WrapperStruct00.var_1_15) : (WrapperStruct00.var_1_16))))) ? (WrapperStruct00.var_1_12 == ((unsigned long int) (500u + ((((WrapperStruct00.var_1_10) < (WrapperStruct00.var_1_8)) ? (WrapperStruct00.var_1_10) : (WrapperStruct00.var_1_8)))))) : (WrapperStruct00.var_1_12 == ((unsigned long int) (WrapperStruct00.var_1_17 - WrapperStruct00.var_1_10))))) && (WrapperStruct00.var_1_18 == ((unsigned char) WrapperStruct00.var_1_11)) ; [L119] RET, EXPR property() [L119] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_12=10, last_1_WrapperStruct00_var_1_18=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.2s, OverallIterations: 28, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4494 SdHoareTripleChecker+Valid, 22.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4492 mSDsluCounter, 16653 SdHoareTripleChecker+Invalid, 21.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12696 mSDsCounter, 200 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11093 IncrementalHoareTripleChecker+Invalid, 11293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 200 mSolverCounterUnsat, 3957 mSDtfsCounter, 11093 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4024 GetRequests, 3706 SyntacticMatches, 0 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1158 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=607occurred in iteration=21, InterpolantAutomatonStates: 318, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 27 MinimizatonAttempts, 2541 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 3879 NumberOfCodeBlocks, 3879 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 3863 ConstructedInterpolants, 1 QuantifiedInterpolants, 19658 SizeOfPredicates, 201 NumberOfNonLiveVariables, 11779 ConjunctsInSsa, 571 ConjunctsInUnsatCore, 30 InterpolantComputations, 26 PerfectInterpolantSequences, 12462/12600 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-19 15:47:25,087 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...