/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-64.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:10:29,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:10:29,551 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:10:29,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:10:29,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:10:29,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:10:29,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:10:29,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:10:29,578 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:10:29,578 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:10:29,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:10:29,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:10:29,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:10:29,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:10:29,580 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:10:29,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:10:29,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:10:29,584 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:10:29,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:10:29,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:10:29,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:10:29,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:10:29,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:10:29,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:10:29,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:10:29,587 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:10:29,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:10:29,587 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:10:29,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:10:29,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:10:29,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:10:29,587 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:10:29,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:10:29,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:10:29,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:10:29,588 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:10:29,588 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:10:29,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:10:29,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:10:29,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:10:29,589 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:10:29,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:10:29,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:10:29,589 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:10:29,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:10:29,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:10:29,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:10:29,738 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:10:29,738 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:10:29,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-64.i [2023-12-16 04:10:30,981 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:10:31,222 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:10:31,222 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-64.i [2023-12-16 04:10:31,232 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4061b5f0a/7adf27f7de474c908d39451a22180e1a/FLAGc250d1f11 [2023-12-16 04:10:31,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4061b5f0a/7adf27f7de474c908d39451a22180e1a [2023-12-16 04:10:31,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:10:31,248 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:10:31,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:10:31,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:10:31,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:10:31,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:31,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac97e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31, skipping insertion in model container [2023-12-16 04:10:31,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:31,329 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:10:31,452 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-64.i[916,929] [2023-12-16 04:10:31,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:10:31,693 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:10:31,704 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_operatoramount_amount500_file-64.i[916,929] [2023-12-16 04:10:31,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:10:31,837 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:10:31,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31 WrapperNode [2023-12-16 04:10:31,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:10:31,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:10:31,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:10:31,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:10:31,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:31,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:31,958 INFO L138 Inliner]: procedures = 26, calls = 78, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 592 [2023-12-16 04:10:31,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:10:31,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:10:31,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:10:31,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:10:31,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:31,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:31,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,046 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 04:10:32,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,047 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,071 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,085 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:10:32,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:10:32,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:10:32,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:10:32,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (1/1) ... [2023-12-16 04:10:32,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:10:32,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:32,181 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) [2023-12-16 04:10:32,185 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 [2023-12-16 04:10:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:10:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:10:32,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:10:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:10:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:10:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:10:32,337 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:10:32,338 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:10:33,162 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:10:33,206 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:10:33,207 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:10:33,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:10:33 BoogieIcfgContainer [2023-12-16 04:10:33,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:10:33,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:10:33,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:10:33,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:10:33,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:10:31" (1/3) ... [2023-12-16 04:10:33,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc51083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:10:33, skipping insertion in model container [2023-12-16 04:10:33,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:10:31" (2/3) ... [2023-12-16 04:10:33,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc51083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:10:33, skipping insertion in model container [2023-12-16 04:10:33,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:10:33" (3/3) ... [2023-12-16 04:10:33,214 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-64.i [2023-12-16 04:10:33,226 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:10:33,226 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:10:33,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:10:33,272 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;@6c02d30a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:10:33,272 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:10:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 219 states, 151 states have (on average 1.609271523178808) internal successors, (243), 152 states have internal predecessors, (243), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 04:10:33,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-16 04:10:33,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:33,293 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:33,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:33,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:33,297 INFO L85 PathProgramCache]: Analyzing trace with hash -954816775, now seen corresponding path program 1 times [2023-12-16 04:10:33,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:33,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403027078] [2023-12-16 04:10:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:33,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:33,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:33,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403027078] [2023-12-16 04:10:33,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:10:33,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447676654] [2023-12-16 04:10:33,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:33,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:33,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:33,613 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) [2023-12-16 04:10:33,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 04:10:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:33,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 04:10:33,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 8192 trivial. 0 not checked. [2023-12-16 04:10:34,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:10:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447676654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:10:34,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:10:34,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:10:34,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056575257] [2023-12-16 04:10:34,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:10:34,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:10:34,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:34,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:10:34,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:10:34,064 INFO L87 Difference]: Start difference. First operand has 219 states, 151 states have (on average 1.609271523178808) internal successors, (243), 152 states have internal predecessors, (243), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) [2023-12-16 04:10:34,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:34,122 INFO L93 Difference]: Finished difference Result 433 states and 805 transitions. [2023-12-16 04:10:34,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:10:34,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) Word has length 422 [2023-12-16 04:10:34,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:34,146 INFO L225 Difference]: With dead ends: 433 [2023-12-16 04:10:34,146 INFO L226 Difference]: Without dead ends: 215 [2023-12-16 04:10:34,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:10:34,152 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:34,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 359 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:10:34,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-12-16 04:10:34,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-12-16 04:10:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 148 states have (on average 1.5675675675675675) internal successors, (232), 148 states have internal predecessors, (232), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-16 04:10:34,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 362 transitions. [2023-12-16 04:10:34,205 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 362 transitions. Word has length 422 [2023-12-16 04:10:34,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:34,206 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 362 transitions. [2023-12-16 04:10:34,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 51.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 2 states have call successors, (65) [2023-12-16 04:10:34,206 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 362 transitions. [2023-12-16 04:10:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-16 04:10:34,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:34,213 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:34,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:34,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 04:10:34,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:34,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1550035247, now seen corresponding path program 1 times [2023-12-16 04:10:34,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:34,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948285363] [2023-12-16 04:10:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:34,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:34,518 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:34,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101244085] [2023-12-16 04:10:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:34,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:34,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:34,521 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) [2023-12-16 04:10:34,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 04:10:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:34,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:10:34,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2023-12-16 04:10:34,901 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:10:34,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:34,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948285363] [2023-12-16 04:10:34,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:34,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101244085] [2023-12-16 04:10:34,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101244085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:10:34,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:10:34,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:10:34,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396543111] [2023-12-16 04:10:34,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:10:34,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:10:34,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:34,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:10:34,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:10:34,908 INFO L87 Difference]: Start difference. First operand 215 states and 362 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:35,038 INFO L93 Difference]: Finished difference Result 581 states and 981 transitions. [2023-12-16 04:10:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:10:35,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 422 [2023-12-16 04:10:35,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:35,047 INFO L225 Difference]: With dead ends: 581 [2023-12-16 04:10:35,047 INFO L226 Difference]: Without dead ends: 367 [2023-12-16 04:10:35,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:10:35,052 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 244 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:35,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 690 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:10:35,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-16 04:10:35,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2023-12-16 04:10:35,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 270 states have (on average 1.6037037037037036) internal successors, (433), 271 states have internal predecessors, (433), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-16 04:10:35,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 615 transitions. [2023-12-16 04:10:35,104 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 615 transitions. Word has length 422 [2023-12-16 04:10:35,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:35,105 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 615 transitions. [2023-12-16 04:10:35,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:35,121 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 615 transitions. [2023-12-16 04:10:35,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-16 04:10:35,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:35,126 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:35,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:35,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 04:10:35,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:35,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:35,345 INFO L85 PathProgramCache]: Analyzing trace with hash -805770003, now seen corresponding path program 1 times [2023-12-16 04:10:35,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:35,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545633163] [2023-12-16 04:10:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:35,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:35,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260435857] [2023-12-16 04:10:35,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:35,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:35,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:35,422 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) [2023-12-16 04:10:35,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 04:10:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:35,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:10:35,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2023-12-16 04:10:35,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:10:35,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:35,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545633163] [2023-12-16 04:10:35,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:35,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260435857] [2023-12-16 04:10:35,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260435857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:10:35,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:10:35,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:10:35,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351798909] [2023-12-16 04:10:35,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:10:35,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:10:35,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:35,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:10:35,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:10:35,728 INFO L87 Difference]: Start difference. First operand 364 states and 615 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:35,816 INFO L93 Difference]: Finished difference Result 1056 states and 1788 transitions. [2023-12-16 04:10:35,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:10:35,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 422 [2023-12-16 04:10:35,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:35,821 INFO L225 Difference]: With dead ends: 1056 [2023-12-16 04:10:35,821 INFO L226 Difference]: Without dead ends: 693 [2023-12-16 04:10:35,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:10:35,823 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 324 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:35,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 899 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 04:10:35,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-12-16 04:10:35,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 416. [2023-12-16 04:10:35,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 322 states have (on average 1.624223602484472) internal successors, (523), 323 states have internal predecessors, (523), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-16 04:10:35,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 705 transitions. [2023-12-16 04:10:35,857 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 705 transitions. Word has length 422 [2023-12-16 04:10:35,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:35,858 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 705 transitions. [2023-12-16 04:10:35,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:35,859 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 705 transitions. [2023-12-16 04:10:35,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-16 04:10:35,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:35,862 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:35,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:36,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:36,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:36,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:36,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1245213995, now seen corresponding path program 1 times [2023-12-16 04:10:36,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:36,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102995640] [2023-12-16 04:10:36,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:36,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:36,141 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:36,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466362294] [2023-12-16 04:10:36,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:36,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:36,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:36,143 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) [2023-12-16 04:10:36,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 04:10:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:36,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:10:36,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:36,674 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 3952 proven. 120 refuted. 0 times theorem prover too weak. 4248 trivial. 0 not checked. [2023-12-16 04:10:36,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:10:36,930 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 72 proven. 120 refuted. 0 times theorem prover too weak. 8128 trivial. 0 not checked. [2023-12-16 04:10:36,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:36,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102995640] [2023-12-16 04:10:36,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:36,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466362294] [2023-12-16 04:10:36,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466362294] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:10:36,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:10:36,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 04:10:36,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710823759] [2023-12-16 04:10:36,931 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:10:36,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:10:36,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:36,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:10:36,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:10:36,934 INFO L87 Difference]: Start difference. First operand 416 states and 705 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (105), 2 states have call predecessors, (105), 4 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2023-12-16 04:10:37,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:37,343 INFO L93 Difference]: Finished difference Result 872 states and 1465 transitions. [2023-12-16 04:10:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:10:37,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (105), 2 states have call predecessors, (105), 4 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) Word has length 422 [2023-12-16 04:10:37,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:37,349 INFO L225 Difference]: With dead ends: 872 [2023-12-16 04:10:37,350 INFO L226 Difference]: Without dead ends: 457 [2023-12-16 04:10:37,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 836 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:10:37,353 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 386 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:37,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 754 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:10:37,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-12-16 04:10:37,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 450. [2023-12-16 04:10:37,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 330 states have (on average 1.5696969696969696) internal successors, (518), 332 states have internal predecessors, (518), 115 states have call successors, (115), 4 states have call predecessors, (115), 4 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) [2023-12-16 04:10:37,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 748 transitions. [2023-12-16 04:10:37,379 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 748 transitions. Word has length 422 [2023-12-16 04:10:37,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:37,380 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 748 transitions. [2023-12-16 04:10:37,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (105), 2 states have call predecessors, (105), 4 states have return successors, (106), 2 states have call predecessors, (106), 2 states have call successors, (106) [2023-12-16 04:10:37,380 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 748 transitions. [2023-12-16 04:10:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-16 04:10:37,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:37,383 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:37,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:37,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:37,595 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:37,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:37,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1257849898, now seen corresponding path program 1 times [2023-12-16 04:10:37,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:37,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482914550] [2023-12-16 04:10:37,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:37,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:37,644 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:37,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944594035] [2023-12-16 04:10:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:37,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:37,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:37,646 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) [2023-12-16 04:10:37,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 04:10:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:37,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 04:10:37,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2023-12-16 04:10:38,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:10:38,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482914550] [2023-12-16 04:10:38,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:38,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944594035] [2023-12-16 04:10:38,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944594035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:10:38,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:10:38,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:10:38,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118459735] [2023-12-16 04:10:38,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:10:38,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:10:38,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:38,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:10:38,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:10:38,289 INFO L87 Difference]: Start difference. First operand 450 states and 748 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:38,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:38,911 INFO L93 Difference]: Finished difference Result 1640 states and 2724 transitions. [2023-12-16 04:10:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:10:38,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 423 [2023-12-16 04:10:38,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:38,917 INFO L225 Difference]: With dead ends: 1640 [2023-12-16 04:10:38,917 INFO L226 Difference]: Without dead ends: 1229 [2023-12-16 04:10:38,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:10:38,919 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 1277 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:38,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 1253 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:10:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-12-16 04:10:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 915. [2023-12-16 04:10:38,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 704 states have (on average 1.5866477272727273) internal successors, (1117), 710 states have internal predecessors, (1117), 201 states have call successors, (201), 9 states have call predecessors, (201), 9 states have return successors, (201), 195 states have call predecessors, (201), 201 states have call successors, (201) [2023-12-16 04:10:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1519 transitions. [2023-12-16 04:10:38,963 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1519 transitions. Word has length 423 [2023-12-16 04:10:38,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:38,963 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1519 transitions. [2023-12-16 04:10:38,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 5 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1519 transitions. [2023-12-16 04:10:38,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-16 04:10:38,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:38,966 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:38,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:39,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:39,175 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:39,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:39,176 INFO L85 PathProgramCache]: Analyzing trace with hash -986133400, now seen corresponding path program 1 times [2023-12-16 04:10:39,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:39,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337596109] [2023-12-16 04:10:39,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:39,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:39,214 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:39,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738909618] [2023-12-16 04:10:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:39,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:39,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:39,216 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:39,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:10:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:39,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 04:10:39,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:39,539 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2023-12-16 04:10:39,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:10:39,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:39,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337596109] [2023-12-16 04:10:39,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:39,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738909618] [2023-12-16 04:10:39,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738909618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:10:39,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:10:39,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:10:39,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317984679] [2023-12-16 04:10:39,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:10:39,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:10:39,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:39,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:10:39,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:10:39,542 INFO L87 Difference]: Start difference. First operand 915 states and 1519 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:39,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:39,896 INFO L93 Difference]: Finished difference Result 2665 states and 4403 transitions. [2023-12-16 04:10:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:10:39,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 423 [2023-12-16 04:10:39,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:39,903 INFO L225 Difference]: With dead ends: 2665 [2023-12-16 04:10:39,904 INFO L226 Difference]: Without dead ends: 1789 [2023-12-16 04:10:39,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:10:39,906 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 616 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:39,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 855 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:10:39,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2023-12-16 04:10:39,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1235. [2023-12-16 04:10:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1021 states have (on average 1.6190009794319296) internal successors, (1653), 1027 states have internal predecessors, (1653), 201 states have call successors, (201), 12 states have call predecessors, (201), 12 states have return successors, (201), 195 states have call predecessors, (201), 201 states have call successors, (201) [2023-12-16 04:10:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 2055 transitions. [2023-12-16 04:10:39,959 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 2055 transitions. Word has length 423 [2023-12-16 04:10:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:39,959 INFO L495 AbstractCegarLoop]: Abstraction has 1235 states and 2055 transitions. [2023-12-16 04:10:39,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 2055 transitions. [2023-12-16 04:10:39,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2023-12-16 04:10:39,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:39,962 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:39,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:40,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:40,170 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:40,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:40,171 INFO L85 PathProgramCache]: Analyzing trace with hash -92647062, now seen corresponding path program 1 times [2023-12-16 04:10:40,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:40,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313256959] [2023-12-16 04:10:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:40,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:40,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:40,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415567179] [2023-12-16 04:10:40,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:40,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:40,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:40,208 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:40,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:10:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:40,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 04:10:40,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2023-12-16 04:10:40,521 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:10:40,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313256959] [2023-12-16 04:10:40,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:40,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415567179] [2023-12-16 04:10:40,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415567179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:10:40,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:10:40,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:10:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878346617] [2023-12-16 04:10:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:10:40,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 04:10:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:40,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 04:10:40,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:10:40,523 INFO L87 Difference]: Start difference. First operand 1235 states and 2055 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:40,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:40,605 INFO L93 Difference]: Finished difference Result 2983 states and 4972 transitions. [2023-12-16 04:10:40,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:10:40,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 423 [2023-12-16 04:10:40,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:40,614 INFO L225 Difference]: With dead ends: 2983 [2023-12-16 04:10:40,617 INFO L226 Difference]: Without dead ends: 1497 [2023-12-16 04:10:40,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 04:10:40,621 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 170 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:40,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 745 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:10:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2023-12-16 04:10:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1205. [2023-12-16 04:10:40,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 990 states have (on average 1.606060606060606) internal successors, (1590), 996 states have internal predecessors, (1590), 201 states have call successors, (201), 13 states have call predecessors, (201), 13 states have return successors, (201), 195 states have call predecessors, (201), 201 states have call successors, (201) [2023-12-16 04:10:40,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1992 transitions. [2023-12-16 04:10:40,724 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1992 transitions. Word has length 423 [2023-12-16 04:10:40,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:40,724 INFO L495 AbstractCegarLoop]: Abstraction has 1205 states and 1992 transitions. [2023-12-16 04:10:40,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:40,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1992 transitions. [2023-12-16 04:10:40,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2023-12-16 04:10:40,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:40,728 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:40,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:40,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:40,951 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:40,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:40,952 INFO L85 PathProgramCache]: Analyzing trace with hash 2041321782, now seen corresponding path program 1 times [2023-12-16 04:10:40,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:40,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647630796] [2023-12-16 04:10:40,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:40,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:41,011 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:41,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069453952] [2023-12-16 04:10:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:41,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:41,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:41,013 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:41,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:10:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:41,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:10:41,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 4068 proven. 114 refuted. 0 times theorem prover too weak. 4138 trivial. 0 not checked. [2023-12-16 04:10:41,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:10:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 78 proven. 114 refuted. 0 times theorem prover too weak. 8128 trivial. 0 not checked. [2023-12-16 04:10:41,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:41,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647630796] [2023-12-16 04:10:41,760 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:41,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069453952] [2023-12-16 04:10:41,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069453952] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:10:41,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:10:41,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 04:10:41,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749540015] [2023-12-16 04:10:41,761 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:10:41,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:10:41,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:10:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:10:41,762 INFO L87 Difference]: Start difference. First operand 1205 states and 1992 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-16 04:10:42,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:42,211 INFO L93 Difference]: Finished difference Result 1753 states and 2895 transitions. [2023-12-16 04:10:42,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:10:42,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 424 [2023-12-16 04:10:42,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:42,215 INFO L225 Difference]: With dead ends: 1753 [2023-12-16 04:10:42,215 INFO L226 Difference]: Without dead ends: 591 [2023-12-16 04:10:42,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 840 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:10:42,218 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 618 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:42,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 742 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:10:42,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-12-16 04:10:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 584. [2023-12-16 04:10:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 464 states have (on average 1.5646551724137931) internal successors, (726), 466 states have internal predecessors, (726), 111 states have call successors, (111), 8 states have call predecessors, (111), 8 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-16 04:10:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 948 transitions. [2023-12-16 04:10:42,245 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 948 transitions. Word has length 424 [2023-12-16 04:10:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:42,245 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 948 transitions. [2023-12-16 04:10:42,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-16 04:10:42,246 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 948 transitions. [2023-12-16 04:10:42,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-12-16 04:10:42,248 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:42,248 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:42,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:42,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-16 04:10:42,456 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:42,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:42,457 INFO L85 PathProgramCache]: Analyzing trace with hash 2079216431, now seen corresponding path program 1 times [2023-12-16 04:10:42,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:42,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708071195] [2023-12-16 04:10:42,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:42,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:42,513 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:42,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309278836] [2023-12-16 04:10:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:42,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:42,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:42,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:42,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:10:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:42,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:10:42,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2023-12-16 04:10:43,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:10:43,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:43,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708071195] [2023-12-16 04:10:43,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:43,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309278836] [2023-12-16 04:10:43,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309278836] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:10:43,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:10:43,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 04:10:43,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87027189] [2023-12-16 04:10:43,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:10:43,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:10:43,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:10:43,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:10:43,302 INFO L87 Difference]: Start difference. First operand 584 states and 948 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:43,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:43,496 INFO L93 Difference]: Finished difference Result 1114 states and 1819 transitions. [2023-12-16 04:10:43,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 04:10:43,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) Word has length 425 [2023-12-16 04:10:43,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:43,500 INFO L225 Difference]: With dead ends: 1114 [2023-12-16 04:10:43,500 INFO L226 Difference]: Without dead ends: 584 [2023-12-16 04:10:43,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:10:43,501 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 398 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:43,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 339 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:10:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2023-12-16 04:10:43,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2023-12-16 04:10:43,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 464 states have (on average 1.5625) internal successors, (725), 466 states have internal predecessors, (725), 111 states have call successors, (111), 8 states have call predecessors, (111), 8 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-16 04:10:43,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 947 transitions. [2023-12-16 04:10:43,527 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 947 transitions. Word has length 425 [2023-12-16 04:10:43,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:43,528 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 947 transitions. [2023-12-16 04:10:43,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 1 states have call predecessors, (65), 1 states have call successors, (65) [2023-12-16 04:10:43,528 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 947 transitions. [2023-12-16 04:10:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-12-16 04:10:43,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:43,530 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:43,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:43,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:43,738 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:43,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:43,739 INFO L85 PathProgramCache]: Analyzing trace with hash -254176207, now seen corresponding path program 1 times [2023-12-16 04:10:43,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:43,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543899261] [2023-12-16 04:10:43,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:43,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:43,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:43,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759122662] [2023-12-16 04:10:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:43,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:43,790 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:43,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 04:10:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:44,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 04:10:44,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 4182 proven. 105 refuted. 0 times theorem prover too weak. 4033 trivial. 0 not checked. [2023-12-16 04:10:44,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:10:44,521 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 87 proven. 105 refuted. 0 times theorem prover too weak. 8128 trivial. 0 not checked. [2023-12-16 04:10:44,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:44,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543899261] [2023-12-16 04:10:44,522 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:44,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759122662] [2023-12-16 04:10:44,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759122662] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:10:44,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:10:44,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 04:10:44,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201807933] [2023-12-16 04:10:44,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:10:44,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:10:44,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:44,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:10:44,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:10:44,524 INFO L87 Difference]: Start difference. First operand 584 states and 947 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-12-16 04:10:44,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:44,887 INFO L93 Difference]: Finished difference Result 1125 states and 1826 transitions. [2023-12-16 04:10:44,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:10:44,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) Word has length 425 [2023-12-16 04:10:44,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:44,891 INFO L225 Difference]: With dead ends: 1125 [2023-12-16 04:10:44,891 INFO L226 Difference]: Without dead ends: 595 [2023-12-16 04:10:44,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 842 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:10:44,892 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 590 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:44,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 671 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:10:44,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2023-12-16 04:10:44,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 587. [2023-12-16 04:10:44,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 466 states have (on average 1.5493562231759657) internal successors, (722), 468 states have internal predecessors, (722), 111 states have call successors, (111), 9 states have call predecessors, (111), 9 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-16 04:10:44,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 944 transitions. [2023-12-16 04:10:44,919 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 944 transitions. Word has length 425 [2023-12-16 04:10:44,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:44,920 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 944 transitions. [2023-12-16 04:10:44,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (100), 2 states have call predecessors, (100), 4 states have return successors, (101), 2 states have call predecessors, (101), 2 states have call successors, (101) [2023-12-16 04:10:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 944 transitions. [2023-12-16 04:10:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2023-12-16 04:10:44,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:44,922 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:44,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:45,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 04:10:45,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:45,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:45,131 INFO L85 PathProgramCache]: Analyzing trace with hash -213501457, now seen corresponding path program 1 times [2023-12-16 04:10:45,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:45,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908230392] [2023-12-16 04:10:45,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:45,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:45,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:45,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027152008] [2023-12-16 04:10:45,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:45,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:45,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:45,194 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:45,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 04:10:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:45,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 04:10:45,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:45,888 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 1872 proven. 168 refuted. 0 times theorem prover too weak. 6280 trivial. 0 not checked. [2023-12-16 04:10:45,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:10:46,194 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 24 proven. 168 refuted. 0 times theorem prover too weak. 8128 trivial. 0 not checked. [2023-12-16 04:10:46,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:46,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908230392] [2023-12-16 04:10:46,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:46,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027152008] [2023-12-16 04:10:46,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027152008] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:10:46,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:10:46,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-12-16 04:10:46,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341045974] [2023-12-16 04:10:46,195 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:10:46,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:10:46,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:46,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:10:46,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:10:46,196 INFO L87 Difference]: Start difference. First operand 587 states and 944 transitions. Second operand has 12 states, 12 states have (on average 15.166666666666666) internal successors, (182), 12 states have internal predecessors, (182), 3 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (122), 3 states have call predecessors, (122), 3 states have call successors, (122) [2023-12-16 04:10:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:47,875 INFO L93 Difference]: Finished difference Result 1587 states and 2535 transitions. [2023-12-16 04:10:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 04:10:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.166666666666666) internal successors, (182), 12 states have internal predecessors, (182), 3 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (122), 3 states have call predecessors, (122), 3 states have call successors, (122) Word has length 425 [2023-12-16 04:10:47,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:47,879 INFO L225 Difference]: With dead ends: 1587 [2023-12-16 04:10:47,879 INFO L226 Difference]: Without dead ends: 1054 [2023-12-16 04:10:47,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 839 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2023-12-16 04:10:47,881 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 646 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:47,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 2012 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 04:10:47,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2023-12-16 04:10:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 671. [2023-12-16 04:10:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 547 states have (on average 1.570383912248629) internal successors, (859), 549 states have internal predecessors, (859), 111 states have call successors, (111), 12 states have call predecessors, (111), 12 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-16 04:10:47,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1081 transitions. [2023-12-16 04:10:47,916 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1081 transitions. Word has length 425 [2023-12-16 04:10:47,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:47,917 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 1081 transitions. [2023-12-16 04:10:47,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.166666666666666) internal successors, (182), 12 states have internal predecessors, (182), 3 states have call successors, (121), 2 states have call predecessors, (121), 4 states have return successors, (122), 3 states have call predecessors, (122), 3 states have call successors, (122) [2023-12-16 04:10:47,917 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1081 transitions. [2023-12-16 04:10:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-16 04:10:47,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:47,920 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:47,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:48,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-16 04:10:48,128 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:48,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:48,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1636636631, now seen corresponding path program 1 times [2023-12-16 04:10:48,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:48,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189984617] [2023-12-16 04:10:48,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:48,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:48,211 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:48,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254997738] [2023-12-16 04:10:48,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:48,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:48,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:48,229 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:48,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 04:10:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:48,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 04:10:48,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:49,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 5334 proven. 240 refuted. 0 times theorem prover too weak. 2746 trivial. 0 not checked. [2023-12-16 04:10:49,386 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:10:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 318 proven. 249 refuted. 0 times theorem prover too weak. 7753 trivial. 0 not checked. [2023-12-16 04:10:49,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:49,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189984617] [2023-12-16 04:10:49,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:49,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254997738] [2023-12-16 04:10:49,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254997738] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:10:49,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:10:49,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-12-16 04:10:49,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123755604] [2023-12-16 04:10:49,775 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:10:49,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-16 04:10:49,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:49,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-16 04:10:49,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:10:49,777 INFO L87 Difference]: Start difference. First operand 671 states and 1081 transitions. Second operand has 20 states, 19 states have (on average 10.0) internal successors, (190), 18 states have internal predecessors, (190), 7 states have call successors, (99), 4 states have call predecessors, (99), 9 states have return successors, (100), 7 states have call predecessors, (100), 7 states have call successors, (100) [2023-12-16 04:10:50,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:50,605 INFO L93 Difference]: Finished difference Result 1306 states and 2101 transitions. [2023-12-16 04:10:50,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 04:10:50,606 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.0) internal successors, (190), 18 states have internal predecessors, (190), 7 states have call successors, (99), 4 states have call predecessors, (99), 9 states have return successors, (100), 7 states have call predecessors, (100), 7 states have call successors, (100) Word has length 426 [2023-12-16 04:10:50,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:50,609 INFO L225 Difference]: With dead ends: 1306 [2023-12-16 04:10:50,609 INFO L226 Difference]: Without dead ends: 693 [2023-12-16 04:10:50,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 832 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=290, Invalid=580, Unknown=0, NotChecked=0, Total=870 [2023-12-16 04:10:50,610 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 1096 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:50,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1126 Valid, 996 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 04:10:50,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-12-16 04:10:50,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 683. [2023-12-16 04:10:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 556 states have (on average 1.5539568345323742) internal successors, (864), 558 states have internal predecessors, (864), 111 states have call successors, (111), 15 states have call predecessors, (111), 15 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-16 04:10:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1086 transitions. [2023-12-16 04:10:50,679 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1086 transitions. Word has length 426 [2023-12-16 04:10:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:50,679 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 1086 transitions. [2023-12-16 04:10:50,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.0) internal successors, (190), 18 states have internal predecessors, (190), 7 states have call successors, (99), 4 states have call predecessors, (99), 9 states have return successors, (100), 7 states have call predecessors, (100), 7 states have call successors, (100) [2023-12-16 04:10:50,680 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1086 transitions. [2023-12-16 04:10:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-12-16 04:10:50,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:50,685 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:50,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:50,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 04:10:50,896 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:50,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:50,897 INFO L85 PathProgramCache]: Analyzing trace with hash -411277500, now seen corresponding path program 1 times [2023-12-16 04:10:50,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:50,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388905322] [2023-12-16 04:10:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:50,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:50,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:50,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064445919] [2023-12-16 04:10:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:50,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:50,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:50,977 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:51,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-16 04:10:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:10:51,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-16 04:10:51,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:10:52,238 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 4993 proven. 222 refuted. 0 times theorem prover too weak. 3105 trivial. 0 not checked. [2023-12-16 04:10:52,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:10:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 192 proven. 189 refuted. 0 times theorem prover too weak. 7939 trivial. 0 not checked. [2023-12-16 04:10:52,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:10:52,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388905322] [2023-12-16 04:10:52,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:10:52,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064445919] [2023-12-16 04:10:52,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064445919] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 04:10:52,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:10:52,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2023-12-16 04:10:52,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46228708] [2023-12-16 04:10:52,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:10:52,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-16 04:10:52,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:10:52,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-16 04:10:52,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-12-16 04:10:52,608 INFO L87 Difference]: Start difference. First operand 683 states and 1086 transitions. Second operand has 20 states, 19 states have (on average 9.894736842105264) internal successors, (188), 18 states have internal predecessors, (188), 7 states have call successors, (115), 4 states have call predecessors, (115), 8 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) [2023-12-16 04:10:53,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:10:53,585 INFO L93 Difference]: Finished difference Result 1958 states and 3128 transitions. [2023-12-16 04:10:53,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 04:10:53,586 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.894736842105264) internal successors, (188), 18 states have internal predecessors, (188), 7 states have call successors, (115), 4 states have call predecessors, (115), 8 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) Word has length 427 [2023-12-16 04:10:53,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:10:53,590 INFO L225 Difference]: With dead ends: 1958 [2023-12-16 04:10:53,590 INFO L226 Difference]: Without dead ends: 1333 [2023-12-16 04:10:53,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 836 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=344, Invalid=648, Unknown=0, NotChecked=0, Total=992 [2023-12-16 04:10:53,592 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 1390 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:10:53,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 1509 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 04:10:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-12-16 04:10:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 723. [2023-12-16 04:10:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 588 states have (on average 1.5238095238095237) internal successors, (896), 590 states have internal predecessors, (896), 111 states have call successors, (111), 23 states have call predecessors, (111), 23 states have return successors, (111), 109 states have call predecessors, (111), 111 states have call successors, (111) [2023-12-16 04:10:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1118 transitions. [2023-12-16 04:10:53,646 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1118 transitions. Word has length 427 [2023-12-16 04:10:53,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:10:53,647 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 1118 transitions. [2023-12-16 04:10:53,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.894736842105264) internal successors, (188), 18 states have internal predecessors, (188), 7 states have call successors, (115), 4 states have call predecessors, (115), 8 states have return successors, (116), 7 states have call predecessors, (116), 7 states have call successors, (116) [2023-12-16 04:10:53,647 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1118 transitions. [2023-12-16 04:10:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2023-12-16 04:10:53,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:10:53,649 INFO L195 NwaCegarLoop]: trace histogram [65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:10:53,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-16 04:10:53,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-16 04:10:53,859 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:10:53,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:10:53,860 INFO L85 PathProgramCache]: Analyzing trace with hash -388645246, now seen corresponding path program 1 times [2023-12-16 04:10:53,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:10:53,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936775579] [2023-12-16 04:10:53,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:53,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:10:53,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:10:53,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238785440] [2023-12-16 04:10:53,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:10:53,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:10:53,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:10:53,911 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:10:53,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 04:11:44,576 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:11:44,595 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 [2023-12-16 04:11:45,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 04:11:45,777 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forcibly destroying the process [2023-12-16 04:11:45,784 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 04:11:45,786 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:11:45,786 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forcibly destroying the process [2023-12-16 04:11:45,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:11:45,787 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 428 with TraceHistMax 65,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-16 04:11:45,792 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:11:45,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 137 [2023-12-16 04:11:45,801 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:11:45,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:11:45 BoogieIcfgContainer [2023-12-16 04:11:45,803 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:11:45,803 INFO L158 Benchmark]: Toolchain (without parser) took 74555.20ms. Allocated memory was 272.6MB in the beginning and 726.7MB in the end (delta: 454.0MB). Free memory was 214.4MB in the beginning and 431.6MB in the end (delta: -217.1MB). Peak memory consumption was 237.4MB. Max. memory is 8.0GB. [2023-12-16 04:11:45,803 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 211.8MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:11:45,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.26ms. Allocated memory is still 272.6MB. Free memory was 214.4MB in the beginning and 229.5MB in the end (delta: -15.0MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. [2023-12-16 04:11:45,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.66ms. Allocated memory is still 272.6MB. Free memory was 229.5MB in the beginning and 205.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 04:11:45,804 INFO L158 Benchmark]: Boogie Preprocessor took 182.62ms. Allocated memory is still 272.6MB. Free memory was 205.4MB in the beginning and 141.4MB in the end (delta: 64.0MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. [2023-12-16 04:11:45,804 INFO L158 Benchmark]: RCFGBuilder took 1063.83ms. Allocated memory is still 272.6MB. Free memory was 141.4MB in the beginning and 153.0MB in the end (delta: -11.7MB). Peak memory consumption was 57.6MB. Max. memory is 8.0GB. [2023-12-16 04:11:45,804 INFO L158 Benchmark]: TraceAbstraction took 72594.10ms. Allocated memory was 272.6MB in the beginning and 726.7MB in the end (delta: 454.0MB). Free memory was 152.5MB in the beginning and 431.6MB in the end (delta: -279.0MB). Peak memory consumption was 175.0MB. Max. memory is 8.0GB. [2023-12-16 04:11:45,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 211.8MB. Free memory is still 160.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 587.26ms. Allocated memory is still 272.6MB. Free memory was 214.4MB in the beginning and 229.5MB in the end (delta: -15.0MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 120.66ms. Allocated memory is still 272.6MB. Free memory was 229.5MB in the beginning and 205.4MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 182.62ms. Allocated memory is still 272.6MB. Free memory was 205.4MB in the beginning and 141.4MB in the end (delta: 64.0MB). Peak memory consumption was 61.9MB. Max. memory is 8.0GB. * RCFGBuilder took 1063.83ms. Allocated memory is still 272.6MB. Free memory was 141.4MB in the beginning and 153.0MB in the end (delta: -11.7MB). Peak memory consumption was 57.6MB. Max. memory is 8.0GB. * TraceAbstraction took 72594.10ms. Allocated memory was 272.6MB in the beginning and 726.7MB in the end (delta: 454.0MB). Free memory was 152.5MB in the beginning and 431.6MB in the end (delta: -279.0MB). Peak memory consumption was 175.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 428 with TraceHistMax 65,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.5s, OverallIterations: 14, TraceHistogramMax: 65, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7886 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7755 mSDsluCounter, 11824 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6849 mSDsCounter, 1620 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5245 IncrementalHoareTripleChecker+Invalid, 6865 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1620 mSolverCounterUnsat, 4975 mSDtfsCounter, 5245 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8094 GetRequests, 7968 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1235occurred in iteration=6, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 2465 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 5931 NumberOfCodeBlocks, 5931 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 8039 ConstructedInterpolants, 0 QuantifiedInterpolants, 22100 SizeOfPredicates, 39 NumberOfNonLiveVariables, 14085 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 19 InterpolantComputations, 7 PerfectInterpolantSequences, 156166/158080 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