/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 13:08:19,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 13:08:19,552 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 13:08:19,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 13:08:19,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 13:08:19,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 13:08:19,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 13:08:19,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 13:08:19,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 13:08:19,579 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 13:08:19,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 13:08:19,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 13:08:19,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 13:08:19,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 13:08:19,582 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 13:08:19,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 13:08:19,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 13:08:19,582 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 13:08:19,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 13:08:19,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 13:08:19,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 13:08:19,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 13:08:19,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 13:08:19,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 13:08:19,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 13:08:19,584 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 13:08:19,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 13:08:19,584 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 13:08:19,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 13:08:19,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 13:08:19,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 13:08:19,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 13:08:19,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:08:19,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 13:08:19,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 13:08:19,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 13:08:19,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 13:08:19,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 13:08:19,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 13:08:19,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 13:08:19,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 13:08:19,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 13:08:19,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 13:08:19,587 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 13:08:19,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 13:08:19,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 13:08:19,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 13:08:19,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 13:08:19,778 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 13:08:19,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i [2023-12-19 13:08:20,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 13:08:20,907 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 13:08:20,907 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-8.i [2023-12-19 13:08:20,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fae3ca68/fcf710ec3a104aa4a63ce6a89d08efb7/FLAG3a6a6f5df [2023-12-19 13:08:20,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fae3ca68/fcf710ec3a104aa4a63ce6a89d08efb7 [2023-12-19 13:08:20,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 13:08:20,925 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 13:08:20,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 13:08:20,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 13:08:20,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 13:08:20,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:08:20" (1/1) ... [2023-12-19 13:08:20,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1909e890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:20, skipping insertion in model container [2023-12-19 13:08:20,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 01:08:20" (1/1) ... [2023-12-19 13:08:20,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 13:08:21,078 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_amount250_file-8.i[915,928] [2023-12-19 13:08:21,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:08:21,209 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 13:08:21,218 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_amount250_file-8.i[915,928] [2023-12-19 13:08:21,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 13:08:21,273 INFO L206 MainTranslator]: Completed translation [2023-12-19 13:08:21,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21 WrapperNode [2023-12-19 13:08:21,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 13:08:21,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 13:08:21,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 13:08:21,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 13:08:21,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,342 INFO L138 Inliner]: procedures = 26, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 389 [2023-12-19 13:08:21,343 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 13:08:21,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 13:08:21,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 13:08:21,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 13:08:21,351 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,356 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,400 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]. [2023-12-19 13:08:21,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,401 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 13:08:21,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 13:08:21,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 13:08:21,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 13:08:21,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (1/1) ... [2023-12-19 13:08:21,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 13:08:21,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:21,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 13:08:21,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 13:08:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 13:08:21,500 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 13:08:21,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 13:08:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 13:08:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 13:08:21,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 13:08:21,590 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 13:08:21,597 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 13:08:22,070 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 13:08:22,110 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 13:08:22,110 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 13:08:22,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:08:22 BoogieIcfgContainer [2023-12-19 13:08:22,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 13:08:22,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 13:08:22,112 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 13:08:22,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 13:08:22,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 01:08:20" (1/3) ... [2023-12-19 13:08:22,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427583dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:08:22, skipping insertion in model container [2023-12-19 13:08:22,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 01:08:21" (2/3) ... [2023-12-19 13:08:22,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427583dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 01:08:22, skipping insertion in model container [2023-12-19 13:08:22,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 01:08:22" (3/3) ... [2023-12-19 13:08:22,116 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-8.i [2023-12-19 13:08:22,127 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 13:08:22,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 13:08:22,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 13:08:22,172 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;@37da01a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 13:08:22,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 13:08:22,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 111 states have (on average 1.5675675675675675) internal successors, (174), 112 states have internal predecessors, (174), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 13:08:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-19 13:08:22,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:22,202 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:22,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:22,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1509155959, now seen corresponding path program 1 times [2023-12-19 13:08:22,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:22,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286351592] [2023-12-19 13:08:22,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:22,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:22,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:22,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286351592] [2023-12-19 13:08:22,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 13:08:22,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975518957] [2023-12-19 13:08:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:22,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:22,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:22,482 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:22,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 13:08:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:22,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 13:08:22,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 4802 trivial. 0 not checked. [2023-12-19 13:08:22,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:08:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975518957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:08:22,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:08:22,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 13:08:22,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92794611] [2023-12-19 13:08:22,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:08:22,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 13:08:22,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:22,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 13:08:22,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:08:22,856 INFO L87 Difference]: Start difference. First operand has 164 states, 111 states have (on average 1.5675675675675675) internal successors, (174), 112 states have internal predecessors, (174), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-19 13:08:22,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:22,924 INFO L93 Difference]: Finished difference Result 325 states and 596 transitions. [2023-12-19 13:08:22,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 13:08:22,926 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) Word has length 323 [2023-12-19 13:08:22,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:22,934 INFO L225 Difference]: With dead ends: 325 [2023-12-19 13:08:22,934 INFO L226 Difference]: Without dead ends: 162 [2023-12-19 13:08:22,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 13:08:22,942 INFO L413 NwaCegarLoop]: 266 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, 266 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 [2023-12-19 13:08:22,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 266 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:08:22,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-12-19 13:08:22,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-12-19 13:08:22,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 110 states have (on average 1.5363636363636364) internal successors, (169), 110 states have internal predecessors, (169), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-19 13:08:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 269 transitions. [2023-12-19 13:08:23,000 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 269 transitions. Word has length 323 [2023-12-19 13:08:23,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:23,001 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 269 transitions. [2023-12-19 13:08:23,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 2 states have call successors, (50) [2023-12-19 13:08:23,002 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 269 transitions. [2023-12-19 13:08:23,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-19 13:08:23,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:23,007 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:23,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:23,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 13:08:23,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:23,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:23,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1512397633, now seen corresponding path program 1 times [2023-12-19 13:08:23,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:23,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033970823] [2023-12-19 13:08:23,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:23,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:23,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:23,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092549348] [2023-12-19 13:08:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:23,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:23,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:23,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:23,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 13:08:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:23,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 13:08:23,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-19 13:08:23,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:08:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033970823] [2023-12-19 13:08:23,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092549348] [2023-12-19 13:08:23,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092549348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:08:23,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:08:23,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:08:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779103164] [2023-12-19 13:08:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:08:23,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:08:23,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:23,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:08:23,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:08:23,565 INFO L87 Difference]: Start difference. First operand 162 states and 269 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:23,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:23,673 INFO L93 Difference]: Finished difference Result 471 states and 779 transitions. [2023-12-19 13:08:23,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:08:23,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 323 [2023-12-19 13:08:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:23,680 INFO L225 Difference]: With dead ends: 471 [2023-12-19 13:08:23,680 INFO L226 Difference]: Without dead ends: 310 [2023-12-19 13:08:23,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:08:23,682 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 238 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:23,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 641 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:08:23,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-19 13:08:23,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 308. [2023-12-19 13:08:23,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 205 states have (on average 1.4536585365853658) internal successors, (298), 205 states have internal predecessors, (298), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 13:08:23,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 498 transitions. [2023-12-19 13:08:23,729 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 498 transitions. Word has length 323 [2023-12-19 13:08:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:23,731 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 498 transitions. [2023-12-19 13:08:23,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 498 transitions. [2023-12-19 13:08:23,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-19 13:08:23,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:23,735 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:23,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:23,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 13:08:23,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:23,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:23,945 INFO L85 PathProgramCache]: Analyzing trace with hash -608965001, now seen corresponding path program 1 times [2023-12-19 13:08:23,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:23,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602000384] [2023-12-19 13:08:23,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:23,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:24,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:24,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015930500] [2023-12-19 13:08:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:24,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:24,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:24,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:24,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 13:08:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:24,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 13:08:24,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:24,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-19 13:08:24,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:08:24,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:24,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602000384] [2023-12-19 13:08:24,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:24,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015930500] [2023-12-19 13:08:24,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015930500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:08:24,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:08:24,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:08:24,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792007733] [2023-12-19 13:08:24,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:08:24,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:08:24,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:08:24,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:08:24,266 INFO L87 Difference]: Start difference. First operand 308 states and 498 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:24,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:24,343 INFO L93 Difference]: Finished difference Result 622 states and 1004 transitions. [2023-12-19 13:08:24,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:08:24,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 323 [2023-12-19 13:08:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:24,345 INFO L225 Difference]: With dead ends: 622 [2023-12-19 13:08:24,345 INFO L226 Difference]: Without dead ends: 315 [2023-12-19 13:08:24,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 13:08:24,347 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 212 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:24,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 471 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:08:24,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-12-19 13:08:24,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 313. [2023-12-19 13:08:24,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 210 states have (on average 1.3952380952380952) internal successors, (293), 210 states have internal predecessors, (293), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-19 13:08:24,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 493 transitions. [2023-12-19 13:08:24,366 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 493 transitions. Word has length 323 [2023-12-19 13:08:24,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:24,367 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 493 transitions. [2023-12-19 13:08:24,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:24,367 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 493 transitions. [2023-12-19 13:08:24,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-19 13:08:24,370 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:24,370 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:24,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:24,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:24,576 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:24,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:24,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2097654393, now seen corresponding path program 1 times [2023-12-19 13:08:24,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:24,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885567479] [2023-12-19 13:08:24,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:24,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:24,631 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:24,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015609481] [2023-12-19 13:08:24,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:24,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:24,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:24,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:24,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 13:08:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:24,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 13:08:24,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-19 13:08:25,472 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:08:25,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:25,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885567479] [2023-12-19 13:08:25,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:25,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015609481] [2023-12-19 13:08:25,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015609481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:08:25,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:08:25,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 13:08:25,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054471534] [2023-12-19 13:08:25,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:08:25,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 13:08:25,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:25,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 13:08:25,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 13:08:25,476 INFO L87 Difference]: Start difference. First operand 313 states and 493 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:25,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:25,745 INFO L93 Difference]: Finished difference Result 939 states and 1472 transitions. [2023-12-19 13:08:25,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 13:08:25,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 323 [2023-12-19 13:08:25,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:25,748 INFO L225 Difference]: With dead ends: 939 [2023-12-19 13:08:25,748 INFO L226 Difference]: Without dead ends: 627 [2023-12-19 13:08:25,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 13:08:25,749 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 321 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:25,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 566 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 13:08:25,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-12-19 13:08:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 466. [2023-12-19 13:08:25,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 312 states have (on average 1.3878205128205128) internal successors, (433), 312 states have internal predecessors, (433), 150 states have call successors, (150), 3 states have call predecessors, (150), 3 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-19 13:08:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 733 transitions. [2023-12-19 13:08:25,780 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 733 transitions. Word has length 323 [2023-12-19 13:08:25,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:25,781 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 733 transitions. [2023-12-19 13:08:25,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 733 transitions. [2023-12-19 13:08:25,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-12-19 13:08:25,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:25,784 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:25,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:25,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:25,993 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:25,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:25,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1963640887, now seen corresponding path program 1 times [2023-12-19 13:08:25,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:25,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217271814] [2023-12-19 13:08:25,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:25,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:26,031 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:26,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220945087] [2023-12-19 13:08:26,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:26,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:26,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:26,032 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:26,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 13:08:26,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:26,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 13:08:26,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1993 proven. 39 refuted. 0 times theorem prover too weak. 2868 trivial. 0 not checked. [2023-12-19 13:08:26,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:08:26,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-19 13:08:26,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:26,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217271814] [2023-12-19 13:08:26,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:26,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220945087] [2023-12-19 13:08:26,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220945087] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 13:08:26,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 13:08:26,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-19 13:08:26,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225268599] [2023-12-19 13:08:26,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:08:26,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 13:08:26,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:26,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 13:08:26,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:08:26,491 INFO L87 Difference]: Start difference. First operand 466 states and 733 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:26,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:26,537 INFO L93 Difference]: Finished difference Result 1077 states and 1696 transitions. [2023-12-19 13:08:26,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 13:08:26,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 323 [2023-12-19 13:08:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:26,540 INFO L225 Difference]: With dead ends: 1077 [2023-12-19 13:08:26,540 INFO L226 Difference]: Without dead ends: 612 [2023-12-19 13:08:26,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-19 13:08:26,541 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 241 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:26,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 502 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 13:08:26,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-19 13:08:26,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 505. [2023-12-19 13:08:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 351 states have (on average 1.4045584045584045) internal successors, (493), 351 states have internal predecessors, (493), 150 states have call successors, (150), 3 states have call predecessors, (150), 3 states have return successors, (150), 150 states have call predecessors, (150), 150 states have call successors, (150) [2023-12-19 13:08:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 793 transitions. [2023-12-19 13:08:26,570 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 793 transitions. Word has length 323 [2023-12-19 13:08:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:26,570 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 793 transitions. [2023-12-19 13:08:26,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 793 transitions. [2023-12-19 13:08:26,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-12-19 13:08:26,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:26,573 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:26,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:26,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:26,780 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:26,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:26,781 INFO L85 PathProgramCache]: Analyzing trace with hash -103239513, now seen corresponding path program 1 times [2023-12-19 13:08:26,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:26,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61918363] [2023-12-19 13:08:26,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:26,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:26,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:26,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520135679] [2023-12-19 13:08:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:26,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:26,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:26,822 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:26,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 13:08:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:27,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 13:08:27,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2443 proven. 84 refuted. 0 times theorem prover too weak. 2373 trivial. 0 not checked. [2023-12-19 13:08:27,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:08:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 63 proven. 84 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2023-12-19 13:08:27,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61918363] [2023-12-19 13:08:27,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:27,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520135679] [2023-12-19 13:08:27,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520135679] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 13:08:27,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 13:08:27,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-12-19 13:08:27,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344856591] [2023-12-19 13:08:27,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 13:08:27,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 13:08:27,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:27,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 13:08:27,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2023-12-19 13:08:27,713 INFO L87 Difference]: Start difference. First operand 505 states and 793 transitions. Second operand has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100) [2023-12-19 13:08:29,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:29,838 INFO L93 Difference]: Finished difference Result 3022 states and 4688 transitions. [2023-12-19 13:08:29,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-12-19 13:08:29,839 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100) Word has length 324 [2023-12-19 13:08:29,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:29,847 INFO L225 Difference]: With dead ends: 3022 [2023-12-19 13:08:29,847 INFO L226 Difference]: Without dead ends: 2518 [2023-12-19 13:08:29,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2023-12-19 13:08:29,850 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1812 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 2216 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1904 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 2216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:29,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1904 Valid, 2394 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 2216 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 13:08:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2023-12-19 13:08:29,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 1585. [2023-12-19 13:08:29,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1131 states have (on average 1.403183023872679) internal successors, (1587), 1135 states have internal predecessors, (1587), 434 states have call successors, (434), 19 states have call predecessors, (434), 19 states have return successors, (434), 430 states have call predecessors, (434), 434 states have call successors, (434) [2023-12-19 13:08:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2455 transitions. [2023-12-19 13:08:29,996 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2455 transitions. Word has length 324 [2023-12-19 13:08:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:29,996 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 2455 transitions. [2023-12-19 13:08:29,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 4 states have call successors, (100), 3 states have call predecessors, (100), 5 states have return successors, (100), 4 states have call predecessors, (100), 4 states have call successors, (100) [2023-12-19 13:08:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2455 transitions. [2023-12-19 13:08:30,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2023-12-19 13:08:30,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:30,001 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:30,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:30,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:30,208 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:30,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:30,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1970917928, now seen corresponding path program 1 times [2023-12-19 13:08:30,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:30,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19814241] [2023-12-19 13:08:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:30,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:30,240 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:30,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241082956] [2023-12-19 13:08:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:30,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:30,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:30,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:30,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 13:08:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:30,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-19 13:08:30,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 3105 proven. 249 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2023-12-19 13:08:33,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:08:38,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:38,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19814241] [2023-12-19 13:08:38,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:38,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241082956] [2023-12-19 13:08:38,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241082956] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 13:08:38,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-19 13:08:38,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-12-19 13:08:38,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145517856] [2023-12-19 13:08:38,427 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-19 13:08:38,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-19 13:08:38,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:38,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-19 13:08:38,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=725, Unknown=0, NotChecked=0, Total=992 [2023-12-19 13:08:38,428 INFO L87 Difference]: Start difference. First operand 1585 states and 2455 transitions. Second operand has 21 states, 21 states have (on average 4.904761904761905) internal successors, (103), 18 states have internal predecessors, (103), 6 states have call successors, (50), 6 states have call predecessors, (50), 9 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) [2023-12-19 13:08:40,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:40,589 INFO L93 Difference]: Finished difference Result 3843 states and 5838 transitions. [2023-12-19 13:08:40,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-19 13:08:40,592 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.904761904761905) internal successors, (103), 18 states have internal predecessors, (103), 6 states have call successors, (50), 6 states have call predecessors, (50), 9 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) Word has length 326 [2023-12-19 13:08:40,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:40,606 INFO L225 Difference]: With dead ends: 3843 [2023-12-19 13:08:40,606 INFO L226 Difference]: Without dead ends: 2259 [2023-12-19 13:08:40,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 846 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=944, Invalid=2362, Unknown=0, NotChecked=0, Total=3306 [2023-12-19 13:08:40,612 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1130 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1662 SdHoareTripleChecker+Invalid, 2188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:40,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 1662 Invalid, 2188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-19 13:08:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2023-12-19 13:08:40,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2165. [2023-12-19 13:08:40,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 1529 states have (on average 1.3603662524525835) internal successors, (2080), 1537 states have internal predecessors, (2080), 592 states have call successors, (592), 43 states have call predecessors, (592), 43 states have return successors, (592), 584 states have call predecessors, (592), 592 states have call successors, (592) [2023-12-19 13:08:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3264 transitions. [2023-12-19 13:08:40,798 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3264 transitions. Word has length 326 [2023-12-19 13:08:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:40,800 INFO L495 AbstractCegarLoop]: Abstraction has 2165 states and 3264 transitions. [2023-12-19 13:08:40,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.904761904761905) internal successors, (103), 18 states have internal predecessors, (103), 6 states have call successors, (50), 6 states have call predecessors, (50), 9 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50) [2023-12-19 13:08:40,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3264 transitions. [2023-12-19 13:08:40,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-19 13:08:40,802 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:40,802 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:40,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-19 13:08:41,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:41,013 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:41,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:41,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1780005971, now seen corresponding path program 1 times [2023-12-19 13:08:41,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:41,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062879982] [2023-12-19 13:08:41,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:41,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:41,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:41,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962615708] [2023-12-19 13:08:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:41,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:41,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:41,049 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:41,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 13:08:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:41,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 13:08:41,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:41,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-19 13:08:41,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 13:08:41,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:41,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062879982] [2023-12-19 13:08:41,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:41,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962615708] [2023-12-19 13:08:41,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962615708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 13:08:41,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 13:08:41,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 13:08:41,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053749014] [2023-12-19 13:08:41,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 13:08:41,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 13:08:41,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:41,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 13:08:41,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 13:08:41,288 INFO L87 Difference]: Start difference. First operand 2165 states and 3264 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:41,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:41,553 INFO L93 Difference]: Finished difference Result 3590 states and 5479 transitions. [2023-12-19 13:08:41,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 13:08:41,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 327 [2023-12-19 13:08:41,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:41,560 INFO L225 Difference]: With dead ends: 3590 [2023-12-19 13:08:41,560 INFO L226 Difference]: Without dead ends: 2167 [2023-12-19 13:08:41,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-19 13:08:41,563 INFO L413 NwaCegarLoop]: 453 mSDtfsCounter, 225 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:41,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 968 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 13:08:41,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2023-12-19 13:08:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 2165. [2023-12-19 13:08:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2165 states, 1529 states have (on average 1.353826030085023) internal successors, (2070), 1537 states have internal predecessors, (2070), 592 states have call successors, (592), 43 states have call predecessors, (592), 43 states have return successors, (592), 584 states have call predecessors, (592), 592 states have call successors, (592) [2023-12-19 13:08:41,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2165 states to 2165 states and 3254 transitions. [2023-12-19 13:08:41,708 INFO L78 Accepts]: Start accepts. Automaton has 2165 states and 3254 transitions. Word has length 327 [2023-12-19 13:08:41,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:41,708 INFO L495 AbstractCegarLoop]: Abstraction has 2165 states and 3254 transitions. [2023-12-19 13:08:41,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-19 13:08:41,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2165 states and 3254 transitions. [2023-12-19 13:08:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-19 13:08:41,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:41,711 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:41,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:41,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 13:08:41,917 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:41,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:41,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1812074209, now seen corresponding path program 1 times [2023-12-19 13:08:41,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:41,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879497768] [2023-12-19 13:08:41,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:41,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:41,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:41,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470085061] [2023-12-19 13:08:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:41,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:41,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:41,944 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:41,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 13:08:42,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:42,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 13:08:42,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 13:08:42,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 1743 proven. 114 refuted. 0 times theorem prover too weak. 3043 trivial. 0 not checked. [2023-12-19 13:08:42,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 13:08:42,508 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 33 proven. 114 refuted. 0 times theorem prover too weak. 4753 trivial. 0 not checked. [2023-12-19 13:08:42,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 13:08:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879497768] [2023-12-19 13:08:42,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 13:08:42,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470085061] [2023-12-19 13:08:42,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470085061] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 13:08:42,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-19 13:08:42,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-19 13:08:42,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026359924] [2023-12-19 13:08:42,509 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-19 13:08:42,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 13:08:42,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 13:08:42,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 13:08:42,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 13:08:42,510 INFO L87 Difference]: Start difference. First operand 2165 states and 3254 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 3 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) [2023-12-19 13:08:42,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 13:08:42,846 INFO L93 Difference]: Finished difference Result 3859 states and 5792 transitions. [2023-12-19 13:08:42,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 13:08:42,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 3 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) Word has length 327 [2023-12-19 13:08:42,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 13:08:42,855 INFO L225 Difference]: With dead ends: 3859 [2023-12-19 13:08:42,855 INFO L226 Difference]: Without dead ends: 2275 [2023-12-19 13:08:42,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-12-19 13:08:42,860 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 391 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 13:08:42,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 496 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 13:08:42,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2023-12-19 13:08:43,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2229. [2023-12-19 13:08:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 1577 states have (on average 1.3379835129993658) internal successors, (2110), 1585 states have internal predecessors, (2110), 592 states have call successors, (592), 59 states have call predecessors, (592), 59 states have return successors, (592), 584 states have call predecessors, (592), 592 states have call successors, (592) [2023-12-19 13:08:43,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3294 transitions. [2023-12-19 13:08:43,099 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3294 transitions. Word has length 327 [2023-12-19 13:08:43,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 13:08:43,099 INFO L495 AbstractCegarLoop]: Abstraction has 2229 states and 3294 transitions. [2023-12-19 13:08:43,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 3 states have call successors, (88), 2 states have call predecessors, (88), 4 states have return successors, (89), 3 states have call predecessors, (89), 3 states have call successors, (89) [2023-12-19 13:08:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3294 transitions. [2023-12-19 13:08:43,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-19 13:08:43,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 13:08:43,102 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:08:43,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 13:08:43,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:43,308 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 13:08:43,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 13:08:43,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1132779159, now seen corresponding path program 1 times [2023-12-19 13:08:43,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 13:08:43,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717835825] [2023-12-19 13:08:43,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:43,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 13:08:43,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 13:08:43,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1536905054] [2023-12-19 13:08:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 13:08:43,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 13:08:43,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 13:08:43,330 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 13:08:43,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 13:08:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 13:08:43,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-19 13:08:43,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-19 13:22:48,561 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 [2023-12-19 13:22:48,564 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 13:22:48,779 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 13:22:48,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 13:22:48,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 13:22:48,980 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 328 with TraceHistMax 50,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-64-4-13-4-2-3-2-3-2-3-3-4-2-3-2-4-2-4-2-3-2-5-2-5-2-4-2-4-2-4-2-4-2-3-2-4-2-4-2-4-2-4-2-4-2-4-2-5-2-5-2-5-2-4-2-4-2-4-2-4-2-4-2-3-2-3-2-3-2-2-2-1 context. [2023-12-19 13:22:48,983 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 13:22:48,985 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 13:22:48,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 01:22:48 BoogieIcfgContainer [2023-12-19 13:22:48,986 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 13:22:48,986 INFO L158 Benchmark]: Toolchain (without parser) took 868061.29ms. Allocated memory was 254.8MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 211.3MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-19 13:22:48,986 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 192.9MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 13:22:48,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.92ms. Allocated memory is still 254.8MB. Free memory was 211.0MB in the beginning and 187.1MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-19 13:22:48,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.66ms. Allocated memory is still 254.8MB. Free memory was 187.1MB in the beginning and 176.9MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-19 13:22:48,987 INFO L158 Benchmark]: Boogie Preprocessor took 111.42ms. Allocated memory is still 254.8MB. Free memory was 176.9MB in the beginning and 210.4MB in the end (delta: -33.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 13:22:48,987 INFO L158 Benchmark]: RCFGBuilder took 655.22ms. Allocated memory is still 254.8MB. Free memory was 209.8MB in the beginning and 149.7MB in the end (delta: 60.2MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2023-12-19 13:22:48,987 INFO L158 Benchmark]: TraceAbstraction took 866873.88ms. Allocated memory was 254.8MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 148.6MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-19 13:22:48,989 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 192.9MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 347.92ms. Allocated memory is still 254.8MB. Free memory was 211.0MB in the beginning and 187.1MB in the end (delta: 23.9MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.66ms. Allocated memory is still 254.8MB. Free memory was 187.1MB in the beginning and 176.9MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 111.42ms. Allocated memory is still 254.8MB. Free memory was 176.9MB in the beginning and 210.4MB in the end (delta: -33.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * RCFGBuilder took 655.22ms. Allocated memory is still 254.8MB. Free memory was 209.8MB in the beginning and 149.7MB in the end (delta: 60.2MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * TraceAbstraction took 866873.88ms. Allocated memory was 254.8MB in the beginning and 4.4GB in the end (delta: 4.2GB). Free memory was 148.6MB in the beginning and 3.9GB in the end (delta: -3.8GB). Peak memory consumption was 2.9GB. 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 328 with TraceHistMax 50,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-64-4-13-4-2-3-2-3-2-3-3-4-2-3-2-4-2-4-2-3-2-5-2-5-2-4-2-4-2-4-2-4-2-3-2-4-2-4-2-4-2-4-2-4-2-4-2-5-2-5-2-5-2-4-2-4-2-4-2-4-2-4-2-3-2-3-2-3-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 164 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866.8s, OverallIterations: 10, TraceHistogramMax: 50, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4698 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4570 mSDsluCounter, 7966 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5432 mSDsCounter, 971 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4770 IncrementalHoareTripleChecker+Invalid, 5741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 971 mSolverCounterUnsat, 2534 mSDtfsCounter, 4770 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4106 GetRequests, 3989 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1370 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2229occurred in iteration=9, 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: 0.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 1347 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 3242 NumberOfCodeBlocks, 3242 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3881 ConstructedInterpolants, 0 QuantifiedInterpolants, 15364 SizeOfPredicates, 29 NumberOfNonLiveVariables, 6619 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 58116/58800 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