/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:43:24,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:43:25,062 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:43:25,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:43:25,066 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:43:25,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:43:25,088 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:43:25,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:43:25,089 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:43:25,092 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:43:25,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:43:25,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:43:25,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:43:25,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:43:25,094 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:43:25,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:43:25,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:43:25,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:43:25,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:43:25,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:43:25,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:43:25,095 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:43:25,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:43:25,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:43:25,096 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:43:25,096 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:43:25,096 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:43:25,096 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:43:25,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:43:25,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:43:25,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:43:25,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:43:25,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:43:25,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:43:25,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:43:25,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:43:25,099 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:43:25,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:43:25,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:43:25,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:43:25,326 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:43:25,326 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:43:25,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2023-12-15 21:43:26,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:43:26,449 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:43:26,449 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-27.i [2023-12-15 21:43:26,456 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4037631a6/77d6e2c5eb594e108f2cb6e1808385c4/FLAGf196eff4a [2023-12-15 21:43:26,467 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4037631a6/77d6e2c5eb594e108f2cb6e1808385c4 [2023-12-15 21:43:26,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:43:26,469 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:43:26,470 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:43:26,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:43:26,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:43:26,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e96d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26, skipping insertion in model container [2023-12-15 21:43:26,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,497 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:43:26,613 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-sp_file-27.i[917,930] [2023-12-15 21:43:26,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:43:26,666 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:43:26,675 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-sp_file-27.i[917,930] [2023-12-15 21:43:26,694 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:43:26,707 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:43:26,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26 WrapperNode [2023-12-15 21:43:26,708 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:43:26,709 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:43:26,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:43:26,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:43:26,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,760 INFO L138 Inliner]: procedures = 26, calls = 152, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 439 [2023-12-15 21:43:26,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:43:26,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:43:26,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:43:26,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:43:26,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,815 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 16 writes are split as follows [0, 16]. [2023-12-15 21:43:26,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:43:26,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:43:26,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:43:26,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:43:26,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (1/1) ... [2023-12-15 21:43:26,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:43:26,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:43:26,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 21:43:26,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 21:43:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:43:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:43:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:43:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:43:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:43:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:43:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:43:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:43:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:43:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:43:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:43:27,076 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:43:27,078 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:43:27,455 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:43:27,487 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:43:27,487 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:43:27,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:43:27 BoogieIcfgContainer [2023-12-15 21:43:27,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:43:27,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:43:27,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:43:27,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:43:27,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:43:26" (1/3) ... [2023-12-15 21:43:27,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402aac45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:43:27, skipping insertion in model container [2023-12-15 21:43:27,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:43:26" (2/3) ... [2023-12-15 21:43:27,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402aac45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:43:27, skipping insertion in model container [2023-12-15 21:43:27,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:43:27" (3/3) ... [2023-12-15 21:43:27,494 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-27.i [2023-12-15 21:43:27,506 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:43:27,507 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:43:27,542 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:43:27,546 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;@41e6633d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:43:27,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:43:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 21:43:27,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-15 21:43:27,559 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:27,560 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:27,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:27,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:27,564 INFO L85 PathProgramCache]: Analyzing trace with hash -708701951, now seen corresponding path program 1 times [2023-12-15 21:43:27,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:27,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257897885] [2023-12-15 21:43:27,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:27,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:43:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:43:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:43:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:43:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:43:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:43:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:43:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:43:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:43:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:43:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:43:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:43:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:43:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:43:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:43:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:43:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:43:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:27,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257897885] [2023-12-15 21:43:27,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257897885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:27,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:27,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:43:27,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700568112] [2023-12-15 21:43:27,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:27,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:43:27,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:27,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:43:27,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:43:27,911 INFO L87 Difference]: Start difference. First operand has 87 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 68 states have internal predecessors, (95), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 21:43:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:27,961 INFO L93 Difference]: Finished difference Result 171 states and 273 transitions. [2023-12-15 21:43:27,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:43:27,964 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2023-12-15 21:43:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:27,969 INFO L225 Difference]: With dead ends: 171 [2023-12-15 21:43:27,969 INFO L226 Difference]: Without dead ends: 85 [2023-12-15 21:43:27,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:43:27,975 INFO L413 NwaCegarLoop]: 120 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, 120 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:27,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:43:27,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-15 21:43:28,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-12-15 21:43:28,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 21:43:28,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 124 transitions. [2023-12-15 21:43:28,006 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 124 transitions. Word has length 126 [2023-12-15 21:43:28,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:28,007 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 124 transitions. [2023-12-15 21:43:28,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 21:43:28,007 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 124 transitions. [2023-12-15 21:43:28,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-15 21:43:28,010 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:28,011 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:28,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 21:43:28,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:28,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:28,012 INFO L85 PathProgramCache]: Analyzing trace with hash -941775073, now seen corresponding path program 1 times [2023-12-15 21:43:28,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:28,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690237660] [2023-12-15 21:43:28,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:28,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:43:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:43:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:28,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:43:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:28,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:43:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:43:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:28,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:43:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:43:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:43:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:43:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:43:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:43:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:43:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:43:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:43:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:43:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:43:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:43:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:29,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:29,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690237660] [2023-12-15 21:43:29,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690237660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:29,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:29,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 21:43:29,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907735899] [2023-12-15 21:43:29,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:29,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:43:29,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:29,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:43:29,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:43:29,096 INFO L87 Difference]: Start difference. First operand 85 states and 124 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 21:43:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:29,372 INFO L93 Difference]: Finished difference Result 225 states and 329 transitions. [2023-12-15 21:43:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:43:29,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-12-15 21:43:29,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:29,375 INFO L225 Difference]: With dead ends: 225 [2023-12-15 21:43:29,375 INFO L226 Difference]: Without dead ends: 141 [2023-12-15 21:43:29,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:43:29,377 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 51 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:29,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 378 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:43:29,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-15 21:43:29,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 131. [2023-12-15 21:43:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 94 states have (on average 1.297872340425532) internal successors, (122), 94 states have internal predecessors, (122), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions. [2023-12-15 21:43:29,391 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 126 [2023-12-15 21:43:29,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:29,391 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 190 transitions. [2023-12-15 21:43:29,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 21:43:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2023-12-15 21:43:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-15 21:43:29,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:29,394 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:29,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 21:43:29,394 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:29,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:29,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1052369633, now seen corresponding path program 1 times [2023-12-15 21:43:29,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:29,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917519547] [2023-12-15 21:43:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:29,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:43:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:43:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:43:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:43:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:43:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:43:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:43:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:43:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:43:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:43:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:43:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:43:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:43:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:43:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:43:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:43:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:43:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:29,976 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:29,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917519547] [2023-12-15 21:43:29,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917519547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:29,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:29,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:43:29,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931650995] [2023-12-15 21:43:29,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:29,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:43:29,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:29,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:43:29,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:43:29,982 INFO L87 Difference]: Start difference. First operand 131 states and 190 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 21:43:30,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:30,282 INFO L93 Difference]: Finished difference Result 224 states and 327 transitions. [2023-12-15 21:43:30,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:43:30,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126 [2023-12-15 21:43:30,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:30,287 INFO L225 Difference]: With dead ends: 224 [2023-12-15 21:43:30,287 INFO L226 Difference]: Without dead ends: 140 [2023-12-15 21:43:30,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:43:30,288 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 113 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:30,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 213 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:43:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-15 21:43:30,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 139. [2023-12-15 21:43:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 102 states have (on average 1.303921568627451) internal successors, (133), 102 states have internal predecessors, (133), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:30,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2023-12-15 21:43:30,309 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 126 [2023-12-15 21:43:30,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:30,310 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2023-12-15 21:43:30,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 21:43:30,310 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2023-12-15 21:43:30,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-15 21:43:30,311 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:30,311 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:30,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 21:43:30,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:30,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:30,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1550115519, now seen corresponding path program 1 times [2023-12-15 21:43:30,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:30,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299975106] [2023-12-15 21:43:30,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:30,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:43:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:43:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:43:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:43:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:43:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:43:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:43:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:43:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:43:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:43:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:43:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:43:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:43:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:43:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:43:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:43:31,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:43:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:31,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:31,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299975106] [2023-12-15 21:43:31,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299975106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:31,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:31,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 21:43:31,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741054437] [2023-12-15 21:43:31,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:31,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 21:43:31,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:31,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 21:43:31,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-12-15 21:43:31,827 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 21:43:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:32,637 INFO L93 Difference]: Finished difference Result 249 states and 361 transitions. [2023-12-15 21:43:32,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 21:43:32,638 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 127 [2023-12-15 21:43:32,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:32,639 INFO L225 Difference]: With dead ends: 249 [2023-12-15 21:43:32,639 INFO L226 Difference]: Without dead ends: 157 [2023-12-15 21:43:32,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2023-12-15 21:43:32,640 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 194 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:32,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 251 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 21:43:32,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-12-15 21:43:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 144. [2023-12-15 21:43:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 107 states have internal predecessors, (139), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 207 transitions. [2023-12-15 21:43:32,662 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 207 transitions. Word has length 127 [2023-12-15 21:43:32,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:32,662 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 207 transitions. [2023-12-15 21:43:32,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 21:43:32,663 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 207 transitions. [2023-12-15 21:43:32,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-15 21:43:32,664 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:32,664 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:32,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 21:43:32,664 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:32,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:32,664 INFO L85 PathProgramCache]: Analyzing trace with hash 538998269, now seen corresponding path program 1 times [2023-12-15 21:43:32,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:32,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575060493] [2023-12-15 21:43:32,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:32,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:43:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:43:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:43:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:43:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:43:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:43:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:43:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:43:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:43:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:43:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:43:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:43:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:43:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:43:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:43:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:43:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:43:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:33,498 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:33,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:33,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575060493] [2023-12-15 21:43:33,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575060493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:33,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:33,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 21:43:33,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046738274] [2023-12-15 21:43:33,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:33,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 21:43:33,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:33,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 21:43:33,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:43:33,500 INFO L87 Difference]: Start difference. First operand 144 states and 207 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 21:43:33,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:33,927 INFO L93 Difference]: Finished difference Result 275 states and 397 transitions. [2023-12-15 21:43:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:43:33,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 127 [2023-12-15 21:43:33,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:33,929 INFO L225 Difference]: With dead ends: 275 [2023-12-15 21:43:33,929 INFO L226 Difference]: Without dead ends: 178 [2023-12-15 21:43:33,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-15 21:43:33,930 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 225 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:33,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 244 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 21:43:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-12-15 21:43:33,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 161. [2023-12-15 21:43:33,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 124 states have (on average 1.3225806451612903) internal successors, (164), 124 states have internal predecessors, (164), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 232 transitions. [2023-12-15 21:43:33,951 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 232 transitions. Word has length 127 [2023-12-15 21:43:33,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:33,951 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 232 transitions. [2023-12-15 21:43:33,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 10 states have internal predecessors, (45), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-15 21:43:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 232 transitions. [2023-12-15 21:43:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-15 21:43:33,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:33,952 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:33,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 21:43:33,952 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:33,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:33,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2043378533, now seen corresponding path program 1 times [2023-12-15 21:43:33,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:33,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372463208] [2023-12-15 21:43:33,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:33,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:33,970 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:43:33,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [483100955] [2023-12-15 21:43:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:33,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:43:33,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:43:34,012 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:43:34,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:43:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:34,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-15 21:43:34,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:43:35,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2023-12-15 21:43:35,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:35,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 27 [2023-12-15 21:43:35,765 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2023-12-15 21:43:35,765 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:43:35,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:43:35,873 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 1684 treesize of output 1391 [2023-12-15 21:43:36,806 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:36,853 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:36,858 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:37,140 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,145 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,149 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:37,180 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,184 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,188 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:37,283 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,319 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,339 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,436 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:37,478 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:37,499 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:37,513 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:37,534 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:37,559 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:37,580 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:37,622 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,638 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:37,693 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:38,341 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:38,356 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,385 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,389 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,394 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:39,513 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,518 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,521 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:39,739 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,743 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,746 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:39,808 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,842 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,861 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:39,944 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:39,985 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:40,008 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:40,018 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:40,040 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:40,062 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:40,085 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:40,121 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:40,136 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:40,185 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:40,299 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:40,303 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:40,306 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:41,847 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:41,853 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:41,856 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:41,981 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:41,985 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:41,989 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:42,114 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,118 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,122 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:42,150 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,154 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,157 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:42,209 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,243 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,263 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,365 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:42,403 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:42,424 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:42,434 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:42,458 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:42,480 WARN L667 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-12-15 21:43:42,502 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-15 21:43:42,538 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,554 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:42,602 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:43,790 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:43,829 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:43,850 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:44,069 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:44,086 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:44,791 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:44,826 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:44,846 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:45,051 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:45,068 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:46,749 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-15 21:43:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:48,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:48,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372463208] [2023-12-15 21:43:48,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:43:48,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483100955] [2023-12-15 21:43:48,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483100955] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 21:43:48,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:43:48,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-12-15 21:43:48,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708775111] [2023-12-15 21:43:48,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:48,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:43:48,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:48,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:43:48,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-12-15 21:43:48,727 INFO L87 Difference]: Start difference. First operand 161 states and 232 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:49,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:49,352 INFO L93 Difference]: Finished difference Result 329 states and 476 transitions. [2023-12-15 21:43:49,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:43:49,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 127 [2023-12-15 21:43:49,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:49,354 INFO L225 Difference]: With dead ends: 329 [2023-12-15 21:43:49,354 INFO L226 Difference]: Without dead ends: 221 [2023-12-15 21:43:49,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-12-15 21:43:49,355 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 192 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:49,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 386 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 21:43:49,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-15 21:43:49,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 174. [2023-12-15 21:43:49,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 137 states have internal predecessors, (182), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 250 transitions. [2023-12-15 21:43:49,377 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 250 transitions. Word has length 127 [2023-12-15 21:43:49,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:49,377 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 250 transitions. [2023-12-15 21:43:49,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:49,377 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 250 transitions. [2023-12-15 21:43:49,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-15 21:43:49,378 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:49,379 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:49,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:43:49,585 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,SelfDestructingSolverStorable5 [2023-12-15 21:43:49,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:49,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:49,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1137397410, now seen corresponding path program 1 times [2023-12-15 21:43:49,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:49,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146497306] [2023-12-15 21:43:49,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:49,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 21:43:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 21:43:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 21:43:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 21:43:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 21:43:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 21:43:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-15 21:43:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-15 21:43:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 21:43:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 21:43:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 21:43:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 21:43:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 21:43:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 21:43:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 21:43:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 21:43:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 21:43:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:49,983 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:49,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:49,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146497306] [2023-12-15 21:43:49,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146497306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:49,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:49,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 21:43:49,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092460796] [2023-12-15 21:43:49,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:49,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 21:43:49,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:49,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 21:43:49,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-15 21:43:49,985 INFO L87 Difference]: Start difference. First operand 174 states and 250 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 21:43:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:50,304 INFO L93 Difference]: Finished difference Result 342 states and 493 transitions. [2023-12-15 21:43:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:43:50,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 128 [2023-12-15 21:43:50,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:50,306 INFO L225 Difference]: With dead ends: 342 [2023-12-15 21:43:50,306 INFO L226 Difference]: Without dead ends: 221 [2023-12-15 21:43:50,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-15 21:43:50,307 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 321 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:50,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 269 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:43:50,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-12-15 21:43:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 174. [2023-12-15 21:43:50,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.3211678832116789) internal successors, (181), 137 states have internal predecessors, (181), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:50,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 249 transitions. [2023-12-15 21:43:50,329 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 249 transitions. Word has length 128 [2023-12-15 21:43:50,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:50,330 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 249 transitions. [2023-12-15 21:43:50,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-15 21:43:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 249 transitions. [2023-12-15 21:43:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-15 21:43:50,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:50,331 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:50,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 21:43:50,331 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:50,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1541838250, now seen corresponding path program 1 times [2023-12-15 21:43:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:50,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848198793] [2023-12-15 21:43:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:50,346 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:43:50,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [515532742] [2023-12-15 21:43:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:50,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:43:50,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:43:50,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:43:50,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:43:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:50,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-15 21:43:50,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:43:53,363 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 8 treesize of output 1 [2023-12-15 21:43:53,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,450 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 [2023-12-15 21:43:53,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2023-12-15 21:43:53,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:53,885 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-12-15 21:43:53,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 57 [2023-12-15 21:43:54,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:54,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:54,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:54,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 23 [2023-12-15 21:43:54,052 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:54,052 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:43:54,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:54,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848198793] [2023-12-15 21:43:54,053 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:43:54,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515532742] [2023-12-15 21:43:54,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515532742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:54,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:54,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 21:43:54,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207750801] [2023-12-15 21:43:54,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:54,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 21:43:54,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:54,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 21:43:54,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-15 21:43:54,055 INFO L87 Difference]: Start difference. First operand 174 states and 249 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:57,240 INFO L93 Difference]: Finished difference Result 363 states and 520 transitions. [2023-12-15 21:43:57,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 21:43:57,240 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-12-15 21:43:57,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:57,241 INFO L225 Difference]: With dead ends: 363 [2023-12-15 21:43:57,242 INFO L226 Difference]: Without dead ends: 242 [2023-12-15 21:43:57,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2023-12-15 21:43:57,242 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 373 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 5 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:57,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 358 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 645 Invalid, 13 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 21:43:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2023-12-15 21:43:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 184. [2023-12-15 21:43:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 147 states have (on average 1.3265306122448979) internal successors, (195), 147 states have internal predecessors, (195), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:57,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 263 transitions. [2023-12-15 21:43:57,267 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 263 transitions. Word has length 129 [2023-12-15 21:43:57,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:57,268 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 263 transitions. [2023-12-15 21:43:57,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:57,268 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 263 transitions. [2023-12-15 21:43:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-15 21:43:57,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:57,269 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:57,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:43:57,474 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,SelfDestructingSolverStorable7 [2023-12-15 21:43:57,474 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:57,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:57,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2052064468, now seen corresponding path program 1 times [2023-12-15 21:43:57,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:57,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672166114] [2023-12-15 21:43:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:57,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:57,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:43:57,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794866404] [2023-12-15 21:43:57,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:57,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:43:57,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:43:57,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:43:57,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:43:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:57,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-15 21:43:57,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:43:58,662 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-12-15 21:43:58,663 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 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-15 21:43:58,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:58,736 INFO L349 Elim1Store]: treesize reduction 52, result has 42.9 percent of original size [2023-12-15 21:43:58,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 31 treesize of output 58 [2023-12-15 21:43:58,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:43:58,787 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 23 treesize of output 11 [2023-12-15 21:43:58,797 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 7 [2023-12-15 21:43:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:58,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:43:58,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:58,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672166114] [2023-12-15 21:43:58,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:43:58,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794866404] [2023-12-15 21:43:58,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794866404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:58,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:58,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 21:43:58,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005221930] [2023-12-15 21:43:58,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:58,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 21:43:58,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:58,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 21:43:58,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:43:58,805 INFO L87 Difference]: Start difference. First operand 184 states and 263 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:59,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:59,079 INFO L93 Difference]: Finished difference Result 338 states and 483 transitions. [2023-12-15 21:43:59,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:43:59,080 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2023-12-15 21:43:59,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:59,082 INFO L225 Difference]: With dead ends: 338 [2023-12-15 21:43:59,082 INFO L226 Difference]: Without dead ends: 207 [2023-12-15 21:43:59,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:43:59,084 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 205 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:59,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 228 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 21:43:59,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-15 21:43:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 174. [2023-12-15 21:43:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.313868613138686) internal successors, (180), 137 states have internal predecessors, (180), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:59,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 248 transitions. [2023-12-15 21:43:59,113 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 248 transitions. Word has length 129 [2023-12-15 21:43:59,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:59,115 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 248 transitions. [2023-12-15 21:43:59,115 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:59,115 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 248 transitions. [2023-12-15 21:43:59,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 21:43:59,116 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:59,116 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:59,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 21:43:59,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:43:59,323 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:59,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:59,323 INFO L85 PathProgramCache]: Analyzing trace with hash 942570427, now seen corresponding path program 1 times [2023-12-15 21:43:59,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:59,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488251114] [2023-12-15 21:43:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:59,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:59,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:43:59,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590342906] [2023-12-15 21:43:59,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:59,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:43:59,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:43:59,353 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:43:59,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:43:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:59,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 21:43:59,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:43:59,502 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-12-15 21:43:59,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:43:59,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:43:59,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488251114] [2023-12-15 21:43:59,503 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:43:59,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590342906] [2023-12-15 21:43:59,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590342906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:43:59,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:43:59,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 21:43:59,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385132356] [2023-12-15 21:43:59,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:43:59,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 21:43:59,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:43:59,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 21:43:59,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:43:59,504 INFO L87 Difference]: Start difference. First operand 174 states and 248 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:43:59,539 INFO L93 Difference]: Finished difference Result 313 states and 447 transitions. [2023-12-15 21:43:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 21:43:59,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2023-12-15 21:43:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:43:59,541 INFO L225 Difference]: With dead ends: 313 [2023-12-15 21:43:59,541 INFO L226 Difference]: Without dead ends: 192 [2023-12-15 21:43:59,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 21:43:59,541 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 25 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:43:59,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 233 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:43:59,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-15 21:43:59,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 175. [2023-12-15 21:43:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.3115942028985508) internal successors, (181), 138 states have internal predecessors, (181), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 21:43:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 249 transitions. [2023-12-15 21:43:59,566 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 249 transitions. Word has length 130 [2023-12-15 21:43:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:43:59,567 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 249 transitions. [2023-12-15 21:43:59,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-12-15 21:43:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 249 transitions. [2023-12-15 21:43:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-15 21:43:59,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:43:59,568 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:43:59,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:43:59,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:43:59,773 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:43:59,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:43:59,774 INFO L85 PathProgramCache]: Analyzing trace with hash 262512057, now seen corresponding path program 1 times [2023-12-15 21:43:59,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:43:59,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859452594] [2023-12-15 21:43:59,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:59,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:43:59,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:43:59,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839466952] [2023-12-15 21:43:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:43:59,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:43:59,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:43:59,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 21:43:59,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:43:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:43:59,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 63 conjunts are in the unsatisfiable core [2023-12-15 21:43:59,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:44:00,008 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 9 treesize of output 3 [2023-12-15 21:44:03,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2023-12-15 21:44:03,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,319 INFO L349 Elim1Store]: treesize reduction 61, result has 10.3 percent of original size [2023-12-15 21:44:03,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 41 [2023-12-15 21:44:03,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,474 INFO L349 Elim1Store]: treesize reduction 80, result has 32.8 percent of original size [2023-12-15 21:44:03,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 52 treesize of output 84 [2023-12-15 21:44:03,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:03,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:44:04,215 INFO L349 Elim1Store]: treesize reduction 336, result has 33.9 percent of original size [2023-12-15 21:44:04,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 14 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 41 case distinctions, treesize of input 129 treesize of output 264 Received shutdown request... [2023-12-15 21:44:29,461 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:44:29,467 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:44:29,467 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:44:29,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 21:44:29,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-15 21:44:29,669 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 131 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-23-4-2-2-3-2-1 context. [2023-12-15 21:44:29,672 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:44:29,674 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:44:29,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:44:29 BoogieIcfgContainer [2023-12-15 21:44:29,675 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:44:29,676 INFO L158 Benchmark]: Toolchain (without parser) took 63206.62ms. Allocated memory was 271.6MB in the beginning and 1.0GB in the end (delta: 738.2MB). Free memory was 233.8MB in the beginning and 636.7MB in the end (delta: -402.9MB). Peak memory consumption was 618.0MB. Max. memory is 8.0GB. [2023-12-15 21:44:29,676 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 169.9MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:44:29,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.97ms. Allocated memory is still 271.6MB. Free memory was 233.8MB in the beginning and 219.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-15 21:44:29,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.26ms. Allocated memory is still 271.6MB. Free memory was 219.1MB in the beginning and 215.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:44:29,676 INFO L158 Benchmark]: Boogie Preprocessor took 73.57ms. Allocated memory is still 271.6MB. Free memory was 215.5MB in the beginning and 211.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 21:44:29,677 INFO L158 Benchmark]: RCFGBuilder took 652.37ms. Allocated memory is still 271.6MB. Free memory was 211.9MB in the beginning and 182.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-15 21:44:29,677 INFO L158 Benchmark]: TraceAbstraction took 62186.29ms. Allocated memory was 271.6MB in the beginning and 1.0GB in the end (delta: 738.2MB). Free memory was 182.0MB in the beginning and 636.7MB in the end (delta: -454.7MB). Peak memory consumption was 565.6MB. Max. memory is 8.0GB. [2023-12-15 21:44:29,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 169.9MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 237.97ms. Allocated memory is still 271.6MB. Free memory was 233.8MB in the beginning and 219.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.26ms. Allocated memory is still 271.6MB. Free memory was 219.1MB in the beginning and 215.5MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.57ms. Allocated memory is still 271.6MB. Free memory was 215.5MB in the beginning and 211.9MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 652.37ms. Allocated memory is still 271.6MB. Free memory was 211.9MB in the beginning and 182.6MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 62186.29ms. Allocated memory was 271.6MB in the beginning and 1.0GB in the end (delta: 738.2MB). Free memory was 182.0MB in the beginning and 636.7MB in the end (delta: -454.7MB). Peak memory consumption was 565.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 131 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-1 term,while PolyPacSimplificationTermWalker was simplifying 4 xjuncts wrt. a ∧-23-4-2-2-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.1s, OverallIterations: 11, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 13 mSolverCounterUnknown, 1700 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1699 mSDsluCounter, 2680 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1728 mSDsCounter, 101 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3380 IncrementalHoareTripleChecker+Invalid, 3494 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 101 mSolverCounterUnsat, 952 mSDtfsCounter, 3380 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 959 GetRequests, 856 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=8, InterpolantAutomatonStates: 69, 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, 10 MinimizatonAttempts, 243 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.7s InterpolantComputationTime, 1275 NumberOfCodeBlocks, 1275 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1391 ConstructedInterpolants, 13 QuantifiedInterpolants, 23138 SizeOfPredicates, 59 NumberOfNonLiveVariables, 1692 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 5960/5984 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown