/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 01:49:40,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 01:49:40,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 01:49:40,299 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 01:49:40,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 01:49:40,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 01:49:40,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 01:49:40,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 01:49:40,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 01:49:40,330 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 01:49:40,330 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 01:49:40,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 01:49:40,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 01:49:40,332 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 01:49:40,332 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 01:49:40,332 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 01:49:40,332 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 01:49:40,332 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 01:49:40,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 01:49:40,333 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 01:49:40,333 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 01:49:40,333 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 01:49:40,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 01:49:40,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 01:49:40,333 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 01:49:40,334 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 01:49:40,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 01:49:40,334 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 01:49:40,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 01:49:40,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 01:49:40,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 01:49:40,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 01:49:40,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:49:40,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 01:49:40,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 01:49:40,337 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 01:49:40,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 01:49:40,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 01:49:40,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 01:49:40,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 01:49:40,513 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 01:49:40,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i [2023-12-21 01:49:41,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 01:49:41,616 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 01:49:41,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-87.i [2023-12-21 01:49:41,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdea9ac6e/4666f0982b4145579bcdf2d5f2d817f0/FLAG94945ac80 [2023-12-21 01:49:41,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdea9ac6e/4666f0982b4145579bcdf2d5f2d817f0 [2023-12-21 01:49:41,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 01:49:41,634 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 01:49:41,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 01:49:41,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 01:49:41,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 01:49:41,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7915304f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41, skipping insertion in model container [2023-12-21 01:49:41,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,666 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 01:49:41,779 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-a_file-87.i[916,929] [2023-12-21 01:49:41,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:49:41,830 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 01:49:41,837 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-a_file-87.i[916,929] [2023-12-21 01:49:41,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:49:41,878 INFO L206 MainTranslator]: Completed translation [2023-12-21 01:49:41,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41 WrapperNode [2023-12-21 01:49:41,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 01:49:41,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 01:49:41,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 01:49:41,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 01:49:41,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,925 INFO L138 Inliner]: procedures = 26, calls = 148, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 413 [2023-12-21 01:49:41,925 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 01:49:41,926 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 01:49:41,926 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 01:49:41,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 01:49:41,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,937 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,950 INFO L175 MemorySlicer]: Split 119 memory accesses to 5 slices as follows [2, 11, 57, 13, 36]. 48 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 2, 5, 2, 4]. The 17 writes are split as follows [0, 2, 7, 4, 4]. [2023-12-21 01:49:41,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,950 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,989 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:41,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 01:49:41,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 01:49:41,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 01:49:41,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 01:49:41,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (1/1) ... [2023-12-21 01:49:42,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:49:42,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:42,033 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) [2023-12-21 01:49:42,061 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 [2023-12-21 01:49:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 01:49:42,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-21 01:49:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-21 01:49:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-21 01:49:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-21 01:49:42,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-21 01:49:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-21 01:49:42,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 01:49:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-21 01:49:42,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 01:49:42,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 01:49:42,192 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 01:49:42,195 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 01:49:42,523 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 01:49:42,552 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 01:49:42,552 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 01:49:42,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:49:42 BoogieIcfgContainer [2023-12-21 01:49:42,553 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 01:49:42,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 01:49:42,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 01:49:42,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 01:49:42,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:49:41" (1/3) ... [2023-12-21 01:49:42,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef8ff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:49:42, skipping insertion in model container [2023-12-21 01:49:42,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:49:41" (2/3) ... [2023-12-21 01:49:42,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ef8ff60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:49:42, skipping insertion in model container [2023-12-21 01:49:42,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:49:42" (3/3) ... [2023-12-21 01:49:42,558 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-87.i [2023-12-21 01:49:42,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 01:49:42,570 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 01:49:42,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 01:49:42,602 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;@2b1434af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 01:49:42,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 01:49:42,605 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:49:42,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:49:42,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:42,613 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:42,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:42,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:42,618 INFO L85 PathProgramCache]: Analyzing trace with hash 399468178, now seen corresponding path program 1 times [2023-12-21 01:49:42,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:42,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921775522] [2023-12-21 01:49:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:42,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:42,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:42,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921775522] [2023-12-21 01:49:42,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 01:49:42,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9577405] [2023-12-21 01:49:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:42,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:42,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:42,800 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) [2023-12-21 01:49:42,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 01:49:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:42,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 01:49:42,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:43,003 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-12-21 01:49:43,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:43,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9577405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:43,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:43,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 01:49:43,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479122839] [2023-12-21 01:49:43,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:43,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 01:49:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 01:49:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:49:43,044 INFO L87 Difference]: Start difference. First operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 64 states have internal predecessors, (89), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:49:43,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:43,078 INFO L93 Difference]: Finished difference Result 157 states and 246 transitions. [2023-12-21 01:49:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 01:49:43,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2023-12-21 01:49:43,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:43,086 INFO L225 Difference]: With dead ends: 157 [2023-12-21 01:49:43,086 INFO L226 Difference]: Without dead ends: 78 [2023-12-21 01:49:43,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:49:43,093 INFO L413 NwaCegarLoop]: 106 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, 106 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 [2023-12-21 01:49:43,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:43,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-21 01:49:43,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-21 01:49:43,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 62 states have internal predecessors, (82), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:49:43,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2023-12-21 01:49:43,126 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 106 [2023-12-21 01:49:43,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:43,127 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2023-12-21 01:49:43,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 01:49:43,127 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2023-12-21 01:49:43,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:49:43,133 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:43,133 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:43,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:43,334 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 [2023-12-21 01:49:43,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:43,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:43,335 INFO L85 PathProgramCache]: Analyzing trace with hash 417331062, now seen corresponding path program 1 times [2023-12-21 01:49:43,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:43,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392251839] [2023-12-21 01:49:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:43,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:43,398 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:43,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1327050465] [2023-12-21 01:49:43,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:43,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:43,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:43,400 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) [2023-12-21 01:49:43,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 01:49:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:43,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:49:43,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:43,594 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:43,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:43,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:43,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392251839] [2023-12-21 01:49:43,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:43,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327050465] [2023-12-21 01:49:43,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327050465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:43,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:43,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:49:43,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044589521] [2023-12-21 01:49:43,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:43,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:49:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:43,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:49:43,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:49:43,598 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:43,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:43,665 INFO L93 Difference]: Finished difference Result 167 states and 236 transitions. [2023-12-21 01:49:43,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:49:43,665 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 01:49:43,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:43,669 INFO L225 Difference]: With dead ends: 167 [2023-12-21 01:49:43,669 INFO L226 Difference]: Without dead ends: 90 [2023-12-21 01:49:43,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:43,674 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 21 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:43,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 309 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-21 01:49:43,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2023-12-21 01:49:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:49:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 112 transitions. [2023-12-21 01:49:43,681 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 112 transitions. Word has length 106 [2023-12-21 01:49:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:43,683 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 112 transitions. [2023-12-21 01:49:43,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:43,683 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 112 transitions. [2023-12-21 01:49:43,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:49:43,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:43,685 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:43,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:43,891 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 [2023-12-21 01:49:43,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:43,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:43,892 INFO L85 PathProgramCache]: Analyzing trace with hash -392015564, now seen corresponding path program 1 times [2023-12-21 01:49:43,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:43,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077845469] [2023-12-21 01:49:43,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:43,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:43,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:43,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036193821] [2023-12-21 01:49:43,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:43,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:43,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:43,956 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) [2023-12-21 01:49:43,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 01:49:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:44,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:49:44,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:44,110 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:44,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:44,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:44,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077845469] [2023-12-21 01:49:44,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:44,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036193821] [2023-12-21 01:49:44,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036193821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:44,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:44,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:49:44,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378641881] [2023-12-21 01:49:44,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:44,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:49:44,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:44,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:49:44,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:49:44,112 INFO L87 Difference]: Start difference. First operand 80 states and 112 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:44,146 INFO L93 Difference]: Finished difference Result 167 states and 234 transitions. [2023-12-21 01:49:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:49:44,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 01:49:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:44,152 INFO L225 Difference]: With dead ends: 167 [2023-12-21 01:49:44,152 INFO L226 Difference]: Without dead ends: 88 [2023-12-21 01:49:44,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:44,155 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 12 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 307 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 [2023-12-21 01:49:44,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 307 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2023-12-21 01:49:44,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2023-12-21 01:49:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:49:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 114 transitions. [2023-12-21 01:49:44,170 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 114 transitions. Word has length 106 [2023-12-21 01:49:44,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:44,170 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 114 transitions. [2023-12-21 01:49:44,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:44,171 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 114 transitions. [2023-12-21 01:49:44,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:49:44,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:44,172 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:44,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:44,379 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 [2023-12-21 01:49:44,380 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:44,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:44,380 INFO L85 PathProgramCache]: Analyzing trace with hash -334757262, now seen corresponding path program 1 times [2023-12-21 01:49:44,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:44,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942061346] [2023-12-21 01:49:44,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:44,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:44,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:44,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154683180] [2023-12-21 01:49:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:44,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:44,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:44,434 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) [2023-12-21 01:49:44,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 01:49:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:44,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:49:44,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:44,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:44,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942061346] [2023-12-21 01:49:44,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154683180] [2023-12-21 01:49:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154683180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:44,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:49:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957977426] [2023-12-21 01:49:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:44,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:49:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:49:44,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:49:44,574 INFO L87 Difference]: Start difference. First operand 82 states and 114 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:44,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:44,597 INFO L93 Difference]: Finished difference Result 167 states and 232 transitions. [2023-12-21 01:49:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:49:44,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 01:49:44,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:44,599 INFO L225 Difference]: With dead ends: 167 [2023-12-21 01:49:44,599 INFO L226 Difference]: Without dead ends: 86 [2023-12-21 01:49:44,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:44,606 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 3 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:44,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 307 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:44,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-21 01:49:44,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-21 01:49:44,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:49:44,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2023-12-21 01:49:44,620 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 106 [2023-12-21 01:49:44,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:44,620 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2023-12-21 01:49:44,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:44,620 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2023-12-21 01:49:44,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 01:49:44,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:44,621 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:44,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:44,827 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 [2023-12-21 01:49:44,827 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:44,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash -334697680, now seen corresponding path program 1 times [2023-12-21 01:49:44,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:44,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655337305] [2023-12-21 01:49:44,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:44,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:44,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:44,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676643243] [2023-12-21 01:49:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:44,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:44,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:44,856 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) [2023-12-21 01:49:44,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 01:49:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:44,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:49:45,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:45,024 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:45,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:45,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:45,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655337305] [2023-12-21 01:49:45,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:45,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676643243] [2023-12-21 01:49:45,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676643243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:45,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:45,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:49:45,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563473388] [2023-12-21 01:49:45,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:45,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:49:45,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:45,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:49:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:49:45,028 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:45,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:45,055 INFO L93 Difference]: Finished difference Result 196 states and 271 transitions. [2023-12-21 01:49:45,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:49:45,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 106 [2023-12-21 01:49:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:45,057 INFO L225 Difference]: With dead ends: 196 [2023-12-21 01:49:45,057 INFO L226 Difference]: Without dead ends: 113 [2023-12-21 01:49:45,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:45,058 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 55 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 295 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 [2023-12-21 01:49:45,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 295 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:45,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-21 01:49:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 86. [2023-12-21 01:49:45,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-21 01:49:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 118 transitions. [2023-12-21 01:49:45,076 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 118 transitions. Word has length 106 [2023-12-21 01:49:45,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:45,076 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 118 transitions. [2023-12-21 01:49:45,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 118 transitions. [2023-12-21 01:49:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:49:45,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:45,077 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:45,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-21 01:49:45,284 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 [2023-12-21 01:49:45,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:45,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash 286371212, now seen corresponding path program 1 times [2023-12-21 01:49:45,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:45,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69887906] [2023-12-21 01:49:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:45,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:45,318 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:45,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799284335] [2023-12-21 01:49:45,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:45,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:45,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:45,320 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) [2023-12-21 01:49:45,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 01:49:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:45,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 01:49:45,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:45,560 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 15 treesize of output 15 [2023-12-21 01:49:45,641 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:45,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:45,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:45,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69887906] [2023-12-21 01:49:45,642 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:45,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799284335] [2023-12-21 01:49:45,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799284335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:45,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:45,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-21 01:49:45,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989712711] [2023-12-21 01:49:45,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:45,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 01:49:45,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:45,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 01:49:45,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:49:45,643 INFO L87 Difference]: Start difference. First operand 86 states and 118 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:46,012 INFO L93 Difference]: Finished difference Result 289 states and 392 transitions. [2023-12-21 01:49:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 01:49:46,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 01:49:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:46,015 INFO L225 Difference]: With dead ends: 289 [2023-12-21 01:49:46,016 INFO L226 Difference]: Without dead ends: 204 [2023-12-21 01:49:46,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2023-12-21 01:49:46,017 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 306 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:46,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 482 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:49:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-21 01:49:46,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 141. [2023-12-21 01:49:46,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 120 states have (on average 1.2916666666666667) internal successors, (155), 121 states have internal predecessors, (155), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-21 01:49:46,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 191 transitions. [2023-12-21 01:49:46,032 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 191 transitions. Word has length 108 [2023-12-21 01:49:46,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:46,033 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 191 transitions. [2023-12-21 01:49:46,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:46,033 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 191 transitions. [2023-12-21 01:49:46,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 01:49:46,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:46,035 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:46,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:46,238 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 [2023-12-21 01:49:46,238 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:46,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash -448303625, now seen corresponding path program 1 times [2023-12-21 01:49:46,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:46,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595054414] [2023-12-21 01:49:46,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:46,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:46,258 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:46,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033373283] [2023-12-21 01:49:46,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:46,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:46,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:46,260 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) [2023-12-21 01:49:46,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 01:49:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:46,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 01:49:46,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:46,392 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 17 treesize of output 17 [2023-12-21 01:49:46,428 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:46,429 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 30 treesize of output 12 [2023-12-21 01:49:46,438 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:46,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:46,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:46,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595054414] [2023-12-21 01:49:46,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:46,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033373283] [2023-12-21 01:49:46,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033373283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:46,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:46,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:49:46,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409032615] [2023-12-21 01:49:46,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:46,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:46,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:46,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:46,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:46,447 INFO L87 Difference]: Start difference. First operand 141 states and 191 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:46,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:46,490 INFO L93 Difference]: Finished difference Result 424 states and 575 transitions. [2023-12-21 01:49:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:49:46,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 108 [2023-12-21 01:49:46,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:46,493 INFO L225 Difference]: With dead ends: 424 [2023-12-21 01:49:46,493 INFO L226 Difference]: Without dead ends: 284 [2023-12-21 01:49:46,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:46,494 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 116 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:46,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 410 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:46,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-12-21 01:49:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 158. [2023-12-21 01:49:46,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 137 states have (on average 1.313868613138686) internal successors, (180), 138 states have internal predecessors, (180), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-21 01:49:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 216 transitions. [2023-12-21 01:49:46,504 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 216 transitions. Word has length 108 [2023-12-21 01:49:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:46,505 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 216 transitions. [2023-12-21 01:49:46,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 216 transitions. [2023-12-21 01:49:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 01:49:46,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:46,506 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:46,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:46,712 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 [2023-12-21 01:49:46,712 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:46,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:46,713 INFO L85 PathProgramCache]: Analyzing trace with hash -629961307, now seen corresponding path program 1 times [2023-12-21 01:49:46,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:46,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187661689] [2023-12-21 01:49:46,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:46,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:46,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:46,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966955653] [2023-12-21 01:49:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:46,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:46,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:46,732 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) [2023-12-21 01:49:46,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 01:49:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:46,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 01:49:46,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:46,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-21 01:49:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 13 proven. 39 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-21 01:49:47,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:49:47,147 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 01:49:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:47,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187661689] [2023-12-21 01:49:47,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:47,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966955653] [2023-12-21 01:49:47,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966955653] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:49:47,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:49:47,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-12-21 01:49:47,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429122875] [2023-12-21 01:49:47,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:49:47,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:49:47,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:47,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:49:47,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:47,149 INFO L87 Difference]: Start difference. First operand 158 states and 216 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 1 states have call predecessors, (28), 3 states have call successors, (28) [2023-12-21 01:49:47,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:47,293 INFO L93 Difference]: Finished difference Result 309 states and 415 transitions. [2023-12-21 01:49:47,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:49:47,294 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 1 states have call predecessors, (28), 3 states have call successors, (28) Word has length 109 [2023-12-21 01:49:47,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:47,295 INFO L225 Difference]: With dead ends: 309 [2023-12-21 01:49:47,295 INFO L226 Difference]: Without dead ends: 152 [2023-12-21 01:49:47,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 206 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2023-12-21 01:49:47,296 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 65 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:47,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 392 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-21 01:49:47,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2023-12-21 01:49:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 126 states have (on average 1.2698412698412698) internal successors, (160), 127 states have internal predecessors, (160), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-21 01:49:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 196 transitions. [2023-12-21 01:49:47,302 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 196 transitions. Word has length 109 [2023-12-21 01:49:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:47,303 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 196 transitions. [2023-12-21 01:49:47,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (28), 1 states have call predecessors, (28), 3 states have call successors, (28) [2023-12-21 01:49:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 196 transitions. [2023-12-21 01:49:47,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 01:49:47,303 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:47,304 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:47,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:47,512 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 [2023-12-21 01:49:47,512 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:47,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:47,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2121712514, now seen corresponding path program 1 times [2023-12-21 01:49:47,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:47,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610490814] [2023-12-21 01:49:47,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:47,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:47,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:47,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585257145] [2023-12-21 01:49:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:47,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:47,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:47,531 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) [2023-12-21 01:49:47,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 01:49:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:47,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-21 01:49:47,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:47,684 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:47,685 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 29 treesize of output 30 [2023-12-21 01:49:47,714 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:47,715 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 50 treesize of output 14 [2023-12-21 01:49:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 01:49:47,737 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:49:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:47,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:47,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610490814] [2023-12-21 01:49:47,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:47,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585257145] [2023-12-21 01:49:47,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585257145] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:47,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 01:49:47,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2023-12-21 01:49:47,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902979978] [2023-12-21 01:49:47,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:47,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-21 01:49:47,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:47,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-21 01:49:47,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:49:47,850 INFO L87 Difference]: Start difference. First operand 149 states and 196 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:48,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:48,103 INFO L93 Difference]: Finished difference Result 383 states and 505 transitions. [2023-12-21 01:49:48,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 01:49:48,103 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-12-21 01:49:48,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:48,105 INFO L225 Difference]: With dead ends: 383 [2023-12-21 01:49:48,105 INFO L226 Difference]: Without dead ends: 235 [2023-12-21 01:49:48,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-21 01:49:48,106 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 197 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:48,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 748 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:48,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-21 01:49:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 173. [2023-12-21 01:49:48,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 138 states have (on average 1.2318840579710144) internal successors, (170), 140 states have internal predecessors, (170), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 01:49:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 226 transitions. [2023-12-21 01:49:48,117 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 226 transitions. Word has length 110 [2023-12-21 01:49:48,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:48,117 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 226 transitions. [2023-12-21 01:49:48,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 226 transitions. [2023-12-21 01:49:48,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-21 01:49:48,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:48,118 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:48,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:48,324 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 [2023-12-21 01:49:48,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:48,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash -966029314, now seen corresponding path program 1 times [2023-12-21 01:49:48,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:48,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564749337] [2023-12-21 01:49:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:48,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:48,342 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:48,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148929508] [2023-12-21 01:49:48,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:48,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:48,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:48,343 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) [2023-12-21 01:49:48,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 01:49:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:48,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 01:49:48,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:48,510 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 17 treesize of output 17 [2023-12-21 01:49:48,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:48,552 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 31 treesize of output 13 [2023-12-21 01:49:48,559 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:48,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:48,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:48,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564749337] [2023-12-21 01:49:48,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:48,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148929508] [2023-12-21 01:49:48,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148929508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:48,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:48,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:49:48,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059562382] [2023-12-21 01:49:48,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:48,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:48,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:48,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:48,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:48,560 INFO L87 Difference]: Start difference. First operand 173 states and 226 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:48,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:48,593 INFO L93 Difference]: Finished difference Result 321 states and 418 transitions. [2023-12-21 01:49:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:49:48,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 111 [2023-12-21 01:49:48,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:48,594 INFO L225 Difference]: With dead ends: 321 [2023-12-21 01:49:48,594 INFO L226 Difference]: Without dead ends: 173 [2023-12-21 01:49:48,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:48,595 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 87 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:48,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 306 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:48,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-21 01:49:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-12-21 01:49:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 138 states have (on average 1.2173913043478262) internal successors, (168), 140 states have internal predecessors, (168), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-21 01:49:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 224 transitions. [2023-12-21 01:49:48,605 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 224 transitions. Word has length 111 [2023-12-21 01:49:48,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:48,605 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 224 transitions. [2023-12-21 01:49:48,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 224 transitions. [2023-12-21 01:49:48,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-21 01:49:48,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:48,606 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:48,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:48,812 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 [2023-12-21 01:49:48,813 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:48,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:48,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1814145157, now seen corresponding path program 1 times [2023-12-21 01:49:48,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:48,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668173797] [2023-12-21 01:49:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:48,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:48,832 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:48,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029077418] [2023-12-21 01:49:48,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:48,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:48,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:48,833 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) [2023-12-21 01:49:48,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 01:49:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:48,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 01:49:48,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:48,989 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 31 treesize of output 15 [2023-12-21 01:49:49,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 01:49:49,012 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 27 treesize of output 15 [2023-12-21 01:49:49,018 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 31 treesize of output 15 [2023-12-21 01:49:49,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-21 01:49:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-21 01:49:49,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:49:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 01:49:49,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:49,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668173797] [2023-12-21 01:49:49,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:49,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029077418] [2023-12-21 01:49:49,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029077418] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:49:49,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:49:49,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-21 01:49:49,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240091130] [2023-12-21 01:49:49,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:49:49,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 01:49:49,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:49,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 01:49:49,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 01:49:49,140 INFO L87 Difference]: Start difference. First operand 173 states and 224 transitions. Second operand has 12 states, 10 states have (on average 6.4) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-21 01:49:49,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:49,327 INFO L93 Difference]: Finished difference Result 272 states and 345 transitions. [2023-12-21 01:49:49,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:49:49,327 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.4) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) Word has length 113 [2023-12-21 01:49:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:49,328 INFO L225 Difference]: With dead ends: 272 [2023-12-21 01:49:49,328 INFO L226 Difference]: Without dead ends: 124 [2023-12-21 01:49:49,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2023-12-21 01:49:49,329 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 133 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:49,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 323 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:49,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-21 01:49:49,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2023-12-21 01:49:49,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 91 states have (on average 1.1428571428571428) internal successors, (104), 92 states have internal predecessors, (104), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 01:49:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 152 transitions. [2023-12-21 01:49:49,337 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 152 transitions. Word has length 113 [2023-12-21 01:49:49,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:49,338 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 152 transitions. [2023-12-21 01:49:49,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.4) internal successors, (64), 12 states have internal predecessors, (64), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-21 01:49:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 152 transitions. [2023-12-21 01:49:49,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:49:49,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:49,339 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:49,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:49,546 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 [2023-12-21 01:49:49,547 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:49,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:49,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1001927630, now seen corresponding path program 1 times [2023-12-21 01:49:49,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:49,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657850955] [2023-12-21 01:49:49,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:49,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:49,563 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:49,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653072683] [2023-12-21 01:49:49,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:49,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:49,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:49,565 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) [2023-12-21 01:49:49,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 01:49:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:49,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-21 01:49:49,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:49,705 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 11 [2023-12-21 01:49:49,713 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 31 treesize of output 15 [2023-12-21 01:49:49,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:49,720 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 33 [2023-12-21 01:49:49,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 37 [2023-12-21 01:49:49,820 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:49,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:49,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:49,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657850955] [2023-12-21 01:49:49,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:49,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653072683] [2023-12-21 01:49:49,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653072683] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:49,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:49,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:49,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570448573] [2023-12-21 01:49:49,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:49,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:49:49,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:49,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:49:49,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:49,822 INFO L87 Difference]: Start difference. First operand 122 states and 152 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:49,932 INFO L93 Difference]: Finished difference Result 131 states and 160 transitions. [2023-12-21 01:49:49,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:49:49,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 01:49:49,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:49,934 INFO L225 Difference]: With dead ends: 131 [2023-12-21 01:49:49,934 INFO L226 Difference]: Without dead ends: 129 [2023-12-21 01:49:49,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:49:49,935 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 75 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:49,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 240 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-21 01:49:49,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2023-12-21 01:49:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 96 states have (on average 1.1354166666666667) internal successors, (109), 97 states have internal predecessors, (109), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 01:49:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 157 transitions. [2023-12-21 01:49:49,945 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 157 transitions. Word has length 114 [2023-12-21 01:49:49,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:49,946 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 157 transitions. [2023-12-21 01:49:49,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:49,946 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 157 transitions. [2023-12-21 01:49:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:49:49,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:49,947 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:49,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:50,153 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 [2023-12-21 01:49:50,153 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:50,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1001987212, now seen corresponding path program 1 times [2023-12-21 01:49:50,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:50,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419933548] [2023-12-21 01:49:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:50,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:50,171 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:50,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417715528] [2023-12-21 01:49:50,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:50,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:50,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:50,172 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) [2023-12-21 01:49:50,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 01:49:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:50,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 01:49:50,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:50,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-12-21 01:49:50,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:50,375 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 55 treesize of output 25 [2023-12-21 01:49:50,382 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:50,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:50,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:50,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419933548] [2023-12-21 01:49:50,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:50,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417715528] [2023-12-21 01:49:50,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417715528] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:50,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:50,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:49:50,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140803611] [2023-12-21 01:49:50,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:50,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:50,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:50,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:50,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:50,385 INFO L87 Difference]: Start difference. First operand 128 states and 157 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:50,416 INFO L93 Difference]: Finished difference Result 231 states and 280 transitions. [2023-12-21 01:49:50,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:49:50,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 01:49:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:50,418 INFO L225 Difference]: With dead ends: 231 [2023-12-21 01:49:50,418 INFO L226 Difference]: Without dead ends: 128 [2023-12-21 01:49:50,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:50,418 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 33 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:50,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 310 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:49:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-21 01:49:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-12-21 01:49:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 96 states have (on average 1.125) internal successors, (108), 97 states have internal predecessors, (108), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 01:49:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 156 transitions. [2023-12-21 01:49:50,426 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 156 transitions. Word has length 114 [2023-12-21 01:49:50,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:50,426 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 156 transitions. [2023-12-21 01:49:50,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:50,427 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 156 transitions. [2023-12-21 01:49:50,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:49:50,427 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:50,427 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:50,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:50,633 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 [2023-12-21 01:49:50,633 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:50,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:50,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1059245514, now seen corresponding path program 1 times [2023-12-21 01:49:50,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:50,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473588573] [2023-12-21 01:49:50,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:50,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:50,651 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:50,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785631433] [2023-12-21 01:49:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:50,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:50,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:50,656 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) [2023-12-21 01:49:50,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 01:49:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:50,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-21 01:49:50,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:50,866 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 11 [2023-12-21 01:49:50,887 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 27 treesize of output 22 [2023-12-21 01:49:50,906 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 31 treesize of output 15 [2023-12-21 01:49:50,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2023-12-21 01:49:50,977 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:50,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:50,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:50,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473588573] [2023-12-21 01:49:50,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:50,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785631433] [2023-12-21 01:49:50,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785631433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:50,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:50,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:50,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101204652] [2023-12-21 01:49:50,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:50,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:50,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:50,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:50,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:50,978 INFO L87 Difference]: Start difference. First operand 128 states and 156 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:51,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:51,127 INFO L93 Difference]: Finished difference Result 235 states and 281 transitions. [2023-12-21 01:49:51,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:49:51,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 01:49:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:51,128 INFO L225 Difference]: With dead ends: 235 [2023-12-21 01:49:51,128 INFO L226 Difference]: Without dead ends: 132 [2023-12-21 01:49:51,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:49:51,129 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 64 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:51,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 238 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-12-21 01:49:51,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2023-12-21 01:49:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 99 states have (on average 1.1111111111111112) internal successors, (110), 100 states have internal predecessors, (110), 24 states have call successors, (24), 8 states have call predecessors, (24), 8 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-21 01:49:51,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2023-12-21 01:49:51,139 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 114 [2023-12-21 01:49:51,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:51,140 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2023-12-21 01:49:51,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2023-12-21 01:49:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:49:51,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:51,141 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:51,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:51,347 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 [2023-12-21 01:49:51,347 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:51,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:51,347 INFO L85 PathProgramCache]: Analyzing trace with hash 249898888, now seen corresponding path program 1 times [2023-12-21 01:49:51,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:51,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575614829] [2023-12-21 01:49:51,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:51,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:51,363 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:51,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814839980] [2023-12-21 01:49:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:51,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:51,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:51,364 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) [2023-12-21 01:49:51,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 01:49:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:51,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 01:49:51,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:51,536 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 15 [2023-12-21 01:49:51,564 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:51,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:51,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:51,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575614829] [2023-12-21 01:49:51,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:51,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814839980] [2023-12-21 01:49:51,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814839980] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:51,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:51,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:51,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776758875] [2023-12-21 01:49:51,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:51,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:49:51,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:51,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:49:51,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:51,566 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:51,679 INFO L93 Difference]: Finished difference Result 314 states and 369 transitions. [2023-12-21 01:49:51,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:49:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 114 [2023-12-21 01:49:51,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:51,680 INFO L225 Difference]: With dead ends: 314 [2023-12-21 01:49:51,680 INFO L226 Difference]: Without dead ends: 211 [2023-12-21 01:49:51,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:49:51,681 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 81 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:51,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 430 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:51,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-21 01:49:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2023-12-21 01:49:51,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 160 states have (on average 1.125) internal successors, (180), 162 states have internal predecessors, (180), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 01:49:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 240 transitions. [2023-12-21 01:49:51,692 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 240 transitions. Word has length 114 [2023-12-21 01:49:51,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:51,692 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 240 transitions. [2023-12-21 01:49:51,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 240 transitions. [2023-12-21 01:49:51,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 01:49:51,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:51,693 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:51,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:51,899 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 [2023-12-21 01:49:51,899 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:51,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:51,899 INFO L85 PathProgramCache]: Analyzing trace with hash 909414725, now seen corresponding path program 1 times [2023-12-21 01:49:51,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:51,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494675539] [2023-12-21 01:49:51,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:51,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:51,918 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965250892] [2023-12-21 01:49:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:51,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:51,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:51,919 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) [2023-12-21 01:49:51,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 01:49:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 01:49:52,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:52,088 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 31 treesize of output 15 [2023-12-21 01:49:52,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 01:49:52,107 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 27 treesize of output 15 [2023-12-21 01:49:52,114 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 31 treesize of output 15 [2023-12-21 01:49:52,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-21 01:49:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-12-21 01:49:52,134 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:49:52,259 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 33 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 01:49:52,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:52,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494675539] [2023-12-21 01:49:52,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:52,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965250892] [2023-12-21 01:49:52,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965250892] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:49:52,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:49:52,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-21 01:49:52,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316756706] [2023-12-21 01:49:52,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:49:52,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 01:49:52,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:52,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 01:49:52,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-21 01:49:52,261 INFO L87 Difference]: Start difference. First operand 203 states and 240 transitions. Second operand has 12 states, 10 states have (on average 7.4) internal successors, (74), 12 states have internal predecessors, (74), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-21 01:49:52,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:52,435 INFO L93 Difference]: Finished difference Result 357 states and 415 transitions. [2023-12-21 01:49:52,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 01:49:52,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.4) internal successors, (74), 12 states have internal predecessors, (74), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) Word has length 114 [2023-12-21 01:49:52,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:52,437 INFO L225 Difference]: With dead ends: 357 [2023-12-21 01:49:52,437 INFO L226 Difference]: Without dead ends: 183 [2023-12-21 01:49:52,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2023-12-21 01:49:52,438 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:52,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 199 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:52,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-21 01:49:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2023-12-21 01:49:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 138 states have (on average 1.0724637681159421) internal successors, (148), 140 states have internal predecessors, (148), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 01:49:52,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 208 transitions. [2023-12-21 01:49:52,448 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 208 transitions. Word has length 114 [2023-12-21 01:49:52,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:52,448 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 208 transitions. [2023-12-21 01:49:52,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.4) internal successors, (74), 12 states have internal predecessors, (74), 5 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 3 states have call predecessors, (17), 5 states have call successors, (17) [2023-12-21 01:49:52,449 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 208 transitions. [2023-12-21 01:49:52,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 01:49:52,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:52,449 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:52,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:52,656 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 [2023-12-21 01:49:52,656 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:52,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:52,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2060573964, now seen corresponding path program 1 times [2023-12-21 01:49:52,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:52,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161385006] [2023-12-21 01:49:52,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:52,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:52,672 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:52,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786998728] [2023-12-21 01:49:52,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:52,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:52,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:52,673 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) [2023-12-21 01:49:52,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-21 01:49:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:52,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-21 01:49:52,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:52,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 01:49:52,927 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 [2023-12-21 01:49:52,929 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 19 treesize of output 1 [2023-12-21 01:49:52,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:52,972 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 [2023-12-21 01:49:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:52,981 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:52,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:52,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161385006] [2023-12-21 01:49:52,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:52,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786998728] [2023-12-21 01:49:52,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786998728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:52,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:52,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:49:52,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846280268] [2023-12-21 01:49:52,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:52,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:49:52,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:52,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:49:52,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:49:52,982 INFO L87 Difference]: Start difference. First operand 181 states and 208 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:53,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:53,058 INFO L93 Difference]: Finished difference Result 370 states and 419 transitions. [2023-12-21 01:49:53,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:49:53,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 115 [2023-12-21 01:49:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:53,060 INFO L225 Difference]: With dead ends: 370 [2023-12-21 01:49:53,060 INFO L226 Difference]: Without dead ends: 218 [2023-12-21 01:49:53,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:49:53,061 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 34 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:53,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 351 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-21 01:49:53,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 192. [2023-12-21 01:49:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 149 states have (on average 1.0604026845637584) internal successors, (158), 151 states have internal predecessors, (158), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 01:49:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 218 transitions. [2023-12-21 01:49:53,072 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 218 transitions. Word has length 115 [2023-12-21 01:49:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:53,073 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 218 transitions. [2023-12-21 01:49:53,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:53,073 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 218 transitions. [2023-12-21 01:49:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 01:49:53,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:53,074 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:53,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:53,280 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 [2023-12-21 01:49:53,281 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:53,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1514953949, now seen corresponding path program 1 times [2023-12-21 01:49:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:53,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339518124] [2023-12-21 01:49:53,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:53,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:53,319 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:53,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067775719] [2023-12-21 01:49:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:53,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:53,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:53,321 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) [2023-12-21 01:49:53,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-21 01:49:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:53,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-21 01:49:53,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:53,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-12-21 01:49:53,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-12-21 01:49:53,636 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 [2023-12-21 01:49:53,641 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 [2023-12-21 01:49:53,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:53,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 18 [2023-12-21 01:49:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:53,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:53,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:53,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339518124] [2023-12-21 01:49:53,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:53,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067775719] [2023-12-21 01:49:53,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067775719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:53,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:53,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:53,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617461615] [2023-12-21 01:49:53,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:53,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:53,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:53,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:53,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:53,702 INFO L87 Difference]: Start difference. First operand 192 states and 218 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:53,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:53,845 INFO L93 Difference]: Finished difference Result 363 states and 407 transitions. [2023-12-21 01:49:53,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:49:53,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 116 [2023-12-21 01:49:53,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:53,847 INFO L225 Difference]: With dead ends: 363 [2023-12-21 01:49:53,847 INFO L226 Difference]: Without dead ends: 200 [2023-12-21 01:49:53,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:49:53,848 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 127 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:53,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 182 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:53,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-21 01:49:53,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 192. [2023-12-21 01:49:53,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 149 states have (on average 1.0536912751677852) internal successors, (157), 151 states have internal predecessors, (157), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 01:49:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 217 transitions. [2023-12-21 01:49:53,860 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 217 transitions. Word has length 116 [2023-12-21 01:49:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:53,860 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 217 transitions. [2023-12-21 01:49:53,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 217 transitions. [2023-12-21 01:49:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 01:49:53,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:53,862 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:53,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:54,072 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 [2023-12-21 01:49:54,072 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:54,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:54,073 INFO L85 PathProgramCache]: Analyzing trace with hash -917960793, now seen corresponding path program 1 times [2023-12-21 01:49:54,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:54,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260594230] [2023-12-21 01:49:54,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:54,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:54,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:54,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625297450] [2023-12-21 01:49:54,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:54,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:54,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:54,097 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) [2023-12-21 01:49:54,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-21 01:49:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:54,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-21 01:49:54,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:54,262 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 27 treesize of output 21 [2023-12-21 01:49:54,308 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 30 proven. 9 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-21 01:49:54,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:49:54,383 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:54,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:54,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260594230] [2023-12-21 01:49:54,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:54,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625297450] [2023-12-21 01:49:54,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625297450] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 01:49:54,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 01:49:54,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 11 [2023-12-21 01:49:54,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122518363] [2023-12-21 01:49:54,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:54,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:54,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:54,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:49:54,386 INFO L87 Difference]: Start difference. First operand 192 states and 217 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:54,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:54,507 INFO L93 Difference]: Finished difference Result 366 states and 408 transitions. [2023-12-21 01:49:54,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 01:49:54,508 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 01:49:54,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:54,509 INFO L225 Difference]: With dead ends: 366 [2023-12-21 01:49:54,509 INFO L226 Difference]: Without dead ends: 203 [2023-12-21 01:49:54,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:49:54,510 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 67 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:54,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 549 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-21 01:49:54,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 196. [2023-12-21 01:49:54,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 153 states have (on average 1.0522875816993464) internal successors, (161), 155 states have internal predecessors, (161), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 01:49:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 221 transitions. [2023-12-21 01:49:54,520 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 221 transitions. Word has length 117 [2023-12-21 01:49:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:54,521 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 221 transitions. [2023-12-21 01:49:54,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:54,521 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 221 transitions. [2023-12-21 01:49:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 01:49:54,521 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:54,522 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:54,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:54,727 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 [2023-12-21 01:49:54,728 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:54,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:54,728 INFO L85 PathProgramCache]: Analyzing trace with hash -659795355, now seen corresponding path program 1 times [2023-12-21 01:49:54,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:54,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27257835] [2023-12-21 01:49:54,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:54,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:54,744 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:54,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151562072] [2023-12-21 01:49:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:54,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:54,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:54,746 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) [2023-12-21 01:49:54,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-21 01:49:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:54,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 01:49:54,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:55,095 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 15 treesize of output 15 [2023-12-21 01:49:55,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2023-12-21 01:49:55,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:55,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 21 [2023-12-21 01:49:55,222 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:55,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:55,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:55,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27257835] [2023-12-21 01:49:55,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:55,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151562072] [2023-12-21 01:49:55,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151562072] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:55,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:55,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:55,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181413802] [2023-12-21 01:49:55,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:55,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:55,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:55,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:55,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:55,223 INFO L87 Difference]: Start difference. First operand 196 states and 221 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:55,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:55,404 INFO L93 Difference]: Finished difference Result 367 states and 408 transitions. [2023-12-21 01:49:55,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-21 01:49:55,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 01:49:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:55,409 INFO L225 Difference]: With dead ends: 367 [2023-12-21 01:49:55,409 INFO L226 Difference]: Without dead ends: 200 [2023-12-21 01:49:55,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-21 01:49:55,410 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 134 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:55,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 258 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:55,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-12-21 01:49:55,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 186. [2023-12-21 01:49:55,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.034965034965035) internal successors, (148), 145 states have internal predecessors, (148), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 01:49:55,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 208 transitions. [2023-12-21 01:49:55,427 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 208 transitions. Word has length 117 [2023-12-21 01:49:55,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:55,428 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 208 transitions. [2023-12-21 01:49:55,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:55,428 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 208 transitions. [2023-12-21 01:49:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 01:49:55,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:55,430 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:55,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:55,637 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 [2023-12-21 01:49:55,637 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:55,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1051974299, now seen corresponding path program 1 times [2023-12-21 01:49:55,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:55,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818657698] [2023-12-21 01:49:55,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:55,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:55,660 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:55,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968073813] [2023-12-21 01:49:55,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:55,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:55,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:55,661 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) [2023-12-21 01:49:55,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-21 01:49:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:55,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-21 01:49:55,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:56,052 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 15 treesize of output 15 [2023-12-21 01:49:56,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2023-12-21 01:49:56,164 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-21 01:49:56,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 23 [2023-12-21 01:49:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:56,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:56,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:56,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818657698] [2023-12-21 01:49:56,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:56,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968073813] [2023-12-21 01:49:56,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968073813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:56,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:56,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-21 01:49:56,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570981446] [2023-12-21 01:49:56,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:56,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:56,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:56,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:56,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:56,174 INFO L87 Difference]: Start difference. First operand 186 states and 208 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:56,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:56,354 INFO L93 Difference]: Finished difference Result 363 states and 399 transitions. [2023-12-21 01:49:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:49:56,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 01:49:56,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:56,355 INFO L225 Difference]: With dead ends: 363 [2023-12-21 01:49:56,356 INFO L226 Difference]: Without dead ends: 206 [2023-12-21 01:49:56,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:49:56,356 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 85 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:56,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 247 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:49:56,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-21 01:49:56,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 186. [2023-12-21 01:49:56,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 143 states have (on average 1.027972027972028) internal successors, (147), 145 states have internal predecessors, (147), 30 states have call successors, (30), 12 states have call predecessors, (30), 12 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-21 01:49:56,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 207 transitions. [2023-12-21 01:49:56,371 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 207 transitions. Word has length 117 [2023-12-21 01:49:56,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:56,371 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 207 transitions. [2023-12-21 01:49:56,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 6 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:56,371 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 207 transitions. [2023-12-21 01:49:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 01:49:56,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:49:56,372 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:49:56,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:56,578 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 [2023-12-21 01:49:56,579 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:49:56,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:49:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash -793808861, now seen corresponding path program 1 times [2023-12-21 01:49:56,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:49:56,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473432716] [2023-12-21 01:49:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:56,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:49:56,593 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:49:56,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631443827] [2023-12-21 01:49:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:49:56,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:49:56,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:49:56,594 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) [2023-12-21 01:49:56,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-21 01:49:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:49:56,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 01:49:56,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:49:56,782 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 15 [2023-12-21 01:49:56,821 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-12-21 01:49:56,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:49:56,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:49:56,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473432716] [2023-12-21 01:49:56,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:49:56,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631443827] [2023-12-21 01:49:56,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631443827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:49:56,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:49:56,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 01:49:56,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820560078] [2023-12-21 01:49:56,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:49:56,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:49:56,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:49:56,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:49:56,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:49:56,824 INFO L87 Difference]: Start difference. First operand 186 states and 207 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:56,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:49:56,951 INFO L93 Difference]: Finished difference Result 341 states and 375 transitions. [2023-12-21 01:49:56,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-21 01:49:56,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 117 [2023-12-21 01:49:56,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:49:56,952 INFO L225 Difference]: With dead ends: 341 [2023-12-21 01:49:56,952 INFO L226 Difference]: Without dead ends: 0 [2023-12-21 01:49:56,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:49:56,955 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 58 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 01:49:56,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 490 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 01:49:56,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-21 01:49:56,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-21 01:49:56,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-21 01:49:56,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-21 01:49:56,957 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-12-21 01:49:56,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:49:56,957 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-21 01:49:56,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-21 01:49:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-21 01:49:56,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-21 01:49:56,960 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 01:49:56,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-21 01:49:57,165 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 [2023-12-21 01:49:57,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-21 01:49:59,062 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-21 01:49:59,062 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-21 01:49:59,062 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-21 01:49:59,062 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-21 01:49:59,062 INFO L899 garLoopResultBuilder]: For program point L92-27(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L92-29(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L92-30(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L92-32(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L92-33(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L92-35(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L92-36(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L92-38(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L85-1(line 85) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-21 01:49:59,063 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,063 INFO L899 garLoopResultBuilder]: For program point L77-1(line 77) no Hoare annotation was computed. [2023-12-21 01:49:59,068 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,068 INFO L899 garLoopResultBuilder]: For program point L86-1(line 86) no Hoare annotation was computed. [2023-12-21 01:49:59,068 INFO L895 garLoopResultBuilder]: At program point L70(line 70) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0) (= (select (select |#memory_int#2| |~#signed_char_Array_0~0.base|) 1) (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) 0))) [2023-12-21 01:49:59,068 INFO L899 garLoopResultBuilder]: For program point L70-1(line 70) no Hoare annotation was computed. [2023-12-21 01:49:59,068 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 64) no Hoare annotation was computed. [2023-12-21 01:49:59,068 INFO L895 garLoopResultBuilder]: At program point L79(line 79) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,068 INFO L899 garLoopResultBuilder]: For program point L79-1(line 79) no Hoare annotation was computed. [2023-12-21 01:49:59,068 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 54) no Hoare annotation was computed. [2023-12-21 01:49:59,068 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 46 54) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0) (= (select (select |#memory_int#2| |~#signed_char_Array_0~0.base|) 1) (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) 0))) [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L55(lines 55 63) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L80-1(line 80) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 51) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 60) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L48-2(line 48) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L48-3(line 48) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L48-5(line 48) no Hoare annotation was computed. [2023-12-21 01:49:59,069 INFO L895 garLoopResultBuilder]: At program point L73(line 73) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,069 INFO L899 garLoopResultBuilder]: For program point L73-1(line 73) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L895 garLoopResultBuilder]: At program point L98-2(lines 98 104) the Hoare annotation is: (let ((.cse20 (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|))) (let ((.cse23 (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|)) (.cse21 (select .cse20 8)) (.cse14 (select |#memory_int#2| |~#signed_char_Array_0~0.base|)) (.cse19 (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|))) (let ((.cse18 (select .cse19 |~#BOOL_unsigned_char_Array_0~0.offset|)) (.cse1 (select .cse20 4)) (.cse6 (select .cse14 1)) (.cse0 (mod .cse21 4294967296)) (.cse22 (select .cse14 4)) (.cse7 (select .cse23 0)) (.cse16 (select .cse14 0)) (.cse17 (select .cse20 0))) (let ((.cse8 (= .cse16 .cse17)) (.cse2 (= |~#signed_char_Array_0~0.offset| 0)) (.cse9 (= .cse22 .cse7)) (.cse3 (<= .cse0 2147483647)) (.cse15 (select .cse23 4)) (.cse10 (= .cse22 .cse6)) (.cse11 (= (mod (select .cse20 12) 4294967296) (mod (+ (* 4294967295 .cse21) .cse1) 4294967296))) (.cse4 (= |~#unsigned_long_int_Array_0~0.offset| 0)) (.cse12 (= (select .cse19 (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) .cse18)) (.cse5 (= |~#signed_long_int_Array_0~0.offset| 0)) (.cse13 (not (= (mod .cse18 256) 0)))) (or (and (<= (+ .cse0 1) (mod (* .cse1 ~last_1_signed_long_int_Array_0_1_~0) 4294967296)) .cse2 .cse3 .cse4 .cse5 (= .cse6 .cse7)) (and .cse8 .cse2 .cse9 .cse3 .cse10 .cse11 .cse4 .cse12 .cse5 .cse13 (= (select .cse14 2) .cse15)) (and .cse8 .cse2 .cse9 .cse3 (= (+ .cse16 .cse15) .cse6) .cse10 .cse11 .cse4 (<= (mod (+ .cse16 4294967295) 4294967296) (mod (* .cse17 .cse6) 4294967296)) .cse12 .cse5 .cse13)))))) [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L98-3(lines 98 104) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L74-1(line 74) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 43) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L41-2(lines 41 43) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0) (= |ULTIMATE.start_updateVariables_#t~mem55#1| (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8))) [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L83-1(line 83) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L899 garLoopResultBuilder]: For program point L42-2(line 42) no Hoare annotation was computed. [2023-12-21 01:49:59,070 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |ULTIMATE.start_updateVariables_#t~mem39#1| (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1))) (= |~#unsigned_long_int_Array_0~0.offset| 0) (= |~#signed_long_int_Array_0~0.offset| 0) (= (select (select |#memory_int#2| |~#signed_char_Array_0~0.base|) 1) (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) 0))) [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-3(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-5(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-6(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-7(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-8(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-9(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-11(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-12(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-14(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,071 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0)) [2023-12-21 01:49:59,071 INFO L899 garLoopResultBuilder]: For program point L92-16(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,072 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2023-12-21 01:49:59,072 INFO L899 garLoopResultBuilder]: For program point L92-18(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,072 INFO L899 garLoopResultBuilder]: For program point L92-20(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,072 INFO L899 garLoopResultBuilder]: For program point L92-21(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,072 INFO L899 garLoopResultBuilder]: For program point L92-22(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,072 INFO L899 garLoopResultBuilder]: For program point L92-23(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,072 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (and (= |~#signed_char_Array_0~0.offset| 0) (<= (mod (select (select |#memory_int#4| |~#unsigned_long_int_Array_0~0.base|) 8) 4294967296) 2147483647) (= |~#unsigned_long_int_Array_0~0.offset| 0) (<= 1 (mod (select (select |#memory_int#1| |~#BOOL_unsigned_char_Array_0~0.base|) (+ |~#BOOL_unsigned_char_Array_0~0.offset| 1)) 256)) (= |~#signed_long_int_Array_0~0.offset| 0) (= (select (select |#memory_int#2| |~#signed_char_Array_0~0.base|) 1) (select (select |#memory_int#3| |~#signed_long_int_Array_0~0.base|) 0))) [2023-12-21 01:49:59,073 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2023-12-21 01:49:59,073 INFO L899 garLoopResultBuilder]: For program point L92-25(line 92) no Hoare annotation was computed. [2023-12-21 01:49:59,076 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] [2023-12-21 01:49:59,078 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 01:49:59,091 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated [2023-12-21 01:49:59,093 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,094 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated [2023-12-21 01:49:59,094 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated [2023-12-21 01:49:59,094 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,094 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][12] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset + 1] could not be translated [2023-12-21 01:49:59,095 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated [2023-12-21 01:49:59,096 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated [2023-12-21 01:49:59,096 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated [2023-12-21 01:49:59,096 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,096 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,096 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,096 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][12] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][4] could not be translated [2023-12-21 01:49:59,097 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,098 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][0] could not be translated [2023-12-21 01:49:59,098 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated [2023-12-21 01:49:59,098 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset + 1] could not be translated [2023-12-21 01:49:59,098 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated [2023-12-21 01:49:59,098 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated [2023-12-21 01:49:59,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:49:59 BoogieIcfgContainer [2023-12-21 01:49:59,098 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 01:49:59,099 INFO L158 Benchmark]: Toolchain (without parser) took 17465.12ms. Allocated memory was 199.2MB in the beginning and 429.9MB in the end (delta: 230.7MB). Free memory was 147.1MB in the beginning and 195.9MB in the end (delta: -48.8MB). Peak memory consumption was 183.1MB. Max. memory is 8.0GB. [2023-12-21 01:49:59,099 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 199.2MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 01:49:59,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.12ms. Allocated memory is still 199.2MB. Free memory was 146.8MB in the beginning and 132.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-21 01:49:59,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.85ms. Allocated memory is still 199.2MB. Free memory was 132.3MB in the beginning and 129.0MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-21 01:49:59,100 INFO L158 Benchmark]: Boogie Preprocessor took 71.29ms. Allocated memory is still 199.2MB. Free memory was 129.0MB in the beginning and 124.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-21 01:49:59,100 INFO L158 Benchmark]: RCFGBuilder took 555.35ms. Allocated memory was 199.2MB in the beginning and 297.8MB in the end (delta: 98.6MB). Free memory was 124.8MB in the beginning and 253.1MB in the end (delta: -128.3MB). Peak memory consumption was 24.8MB. Max. memory is 8.0GB. [2023-12-21 01:49:59,100 INFO L158 Benchmark]: TraceAbstraction took 16544.41ms. Allocated memory was 297.8MB in the beginning and 429.9MB in the end (delta: 132.1MB). Free memory was 252.5MB in the beginning and 195.9MB in the end (delta: 56.6MB). Peak memory consumption was 188.7MB. Max. memory is 8.0GB. [2023-12-21 01:49:59,105 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 199.2MB. Free memory is still 149.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.12ms. Allocated memory is still 199.2MB. Free memory was 146.8MB in the beginning and 132.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.85ms. Allocated memory is still 199.2MB. Free memory was 132.3MB in the beginning and 129.0MB in the end (delta: 3.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.29ms. Allocated memory is still 199.2MB. Free memory was 129.0MB in the beginning and 124.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 555.35ms. Allocated memory was 199.2MB in the beginning and 297.8MB in the end (delta: 98.6MB). Free memory was 124.8MB in the beginning and 253.1MB in the end (delta: -128.3MB). Peak memory consumption was 24.8MB. Max. memory is 8.0GB. * TraceAbstraction took 16544.41ms. Allocated memory was 297.8MB in the beginning and 429.9MB in the end (delta: 132.1MB). Free memory was 252.5MB in the beginning and 195.9MB in the end (delta: 56.6MB). Peak memory consumption was 188.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset + 1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][2] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#3[~#signed_long_int_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#4[~#unsigned_long_int_Array_0~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#signed_char_Array_0~0!base][1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset + 1] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#BOOL_unsigned_char_Array_0~0!base][~#BOOL_unsigned_char_Array_0~0!offset] could not be translated * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 22, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1868 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1845 mSDsluCounter, 7479 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5444 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2857 IncrementalHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 2035 mSDtfsCounter, 2857 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3057 GetRequests, 2882 SyntacticMatches, 2 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=203occurred in iteration=15, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 22 MinimizatonAttempts, 387 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 401 PreInvPairs, 434 NumberOfFragments, 749 HoareAnnotationTreeSize, 401 FormulaSimplifications, 2522 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 16 FormulaSimplificationsInter, 4926 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2564 NumberOfCodeBlocks, 2564 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2994 ConstructedInterpolants, 0 QuantifiedInterpolants, 10407 SizeOfPredicates, 153 NumberOfNonLiveVariables, 8265 ConjunctsInSsa, 306 ConjunctsInUnsatCore, 27 InterpolantComputations, 19 PerfectInterpolantSequences, 9708/9828 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-21 01:49:59,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...