/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 01:14:02,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 01:14:02,344 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 01:14:02,348 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 01:14:02,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 01:14:02,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 01:14:02,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 01:14:02,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 01:14:02,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 01:14:02,372 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 01:14:02,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 01:14:02,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 01:14:02,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 01:14:02,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 01:14:02,374 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 01:14:02,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 01:14:02,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 01:14:02,375 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 01:14:02,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 01:14:02,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 01:14:02,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 01:14:02,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 01:14:02,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 01:14:02,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 01:14:02,376 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 01:14:02,377 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 01:14:02,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 01:14:02,377 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 01:14:02,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 01:14:02,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 01:14:02,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 01:14:02,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 01:14:02,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:14:02,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 01:14:02,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 01:14:02,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 01:14:02,379 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 01:14:02,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 01:14:02,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 01:14:02,379 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 01:14:02,379 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 01:14:02,380 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 01:14:02,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 01:14:02,380 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 01:14:02,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 01:14:02,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 01:14:02,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 01:14:02,595 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 01:14:02,596 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 01:14:02,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-87.i [2023-12-21 01:14:03,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 01:14:03,714 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 01:14:03,714 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-87.i [2023-12-21 01:14:03,725 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7704d685e/cdee0368975940cf9b2af53bcb03d221/FLAG1400484e7 [2023-12-21 01:14:03,737 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7704d685e/cdee0368975940cf9b2af53bcb03d221 [2023-12-21 01:14:03,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 01:14:03,741 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 01:14:03,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 01:14:03,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 01:14:03,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 01:14:03,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:03" (1/1) ... [2023-12-21 01:14:03,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b32ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:03, skipping insertion in model container [2023-12-21 01:14:03,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:14:03" (1/1) ... [2023-12-21 01:14:03,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 01:14:03,907 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-87.i[916,929] [2023-12-21 01:14:04,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:14:04,088 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 01:14:04,096 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-87.i[916,929] [2023-12-21 01:14:04,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 01:14:04,189 INFO L206 MainTranslator]: Completed translation [2023-12-21 01:14:04,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04 WrapperNode [2023-12-21 01:14:04,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 01:14:04,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 01:14:04,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 01:14:04,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 01:14:04,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,339 INFO L138 Inliner]: procedures = 26, calls = 81, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 673 [2023-12-21 01:14:04,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 01:14:04,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 01:14:04,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 01:14:04,340 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 01:14:04,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,365 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,413 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]. [2023-12-21 01:14:04,414 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,472 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 01:14:04,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 01:14:04,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 01:14:04,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 01:14:04,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (1/1) ... [2023-12-21 01:14:04,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 01:14:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:04,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 01:14:04,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 01:14:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 01:14:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-21 01:14:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-21 01:14:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 01:14:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 01:14:04,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 01:14:04,667 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 01:14:04,669 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 01:14:05,431 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 01:14:05,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 01:14:05,480 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 01:14:05,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:05 BoogieIcfgContainer [2023-12-21 01:14:05,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 01:14:05,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 01:14:05,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 01:14:05,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 01:14:05,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:14:03" (1/3) ... [2023-12-21 01:14:05,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1bfab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:05, skipping insertion in model container [2023-12-21 01:14:05,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:14:04" (2/3) ... [2023-12-21 01:14:05,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e1bfab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:14:05, skipping insertion in model container [2023-12-21 01:14:05,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:14:05" (3/3) ... [2023-12-21 01:14:05,486 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-87.i [2023-12-21 01:14:05,497 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 01:14:05,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 01:14:05,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 01:14:05,546 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e77a4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 01:14:05,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 01:14:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 177 states have (on average 1.5706214689265536) internal successors, (278), 178 states have internal predecessors, (278), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:14:05,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-21 01:14:05,584 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:05,586 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:05,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:05,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:05,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1408252034, now seen corresponding path program 1 times [2023-12-21 01:14:05,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:05,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418040112] [2023-12-21 01:14:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:05,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:05,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:05,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418040112] [2023-12-21 01:14:05,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-21 01:14:05,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208469537] [2023-12-21 01:14:05,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:05,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:05,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:05,876 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:05,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 01:14:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:06,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 01:14:06,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 8978 trivial. 0 not checked. [2023-12-21 01:14:06,253 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:06,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208469537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:06,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:06,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-21 01:14:06,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451571700] [2023-12-21 01:14:06,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:06,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 01:14:06,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:06,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 01:14:06,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:14:06,278 INFO L87 Difference]: Start difference. First operand has 248 states, 177 states have (on average 1.5706214689265536) internal successors, (278), 178 states have internal predecessors, (278), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2023-12-21 01:14:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:06,368 INFO L93 Difference]: Finished difference Result 493 states and 894 transitions. [2023-12-21 01:14:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 01:14:06,370 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) Word has length 458 [2023-12-21 01:14:06,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:06,379 INFO L225 Difference]: With dead ends: 493 [2023-12-21 01:14:06,379 INFO L226 Difference]: Without dead ends: 246 [2023-12-21 01:14:06,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-21 01:14:06,388 INFO L413 NwaCegarLoop]: 401 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, 401 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 [2023-12-21 01:14:06,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 401 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:14:06,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-12-21 01:14:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2023-12-21 01:14:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 176 states have (on average 1.5227272727272727) internal successors, (268), 176 states have internal predecessors, (268), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:14:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 404 transitions. [2023-12-21 01:14:06,438 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 404 transitions. Word has length 458 [2023-12-21 01:14:06,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:06,438 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 404 transitions. [2023-12-21 01:14:06,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2023-12-21 01:14:06,439 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 404 transitions. [2023-12-21 01:14:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-21 01:14:06,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:06,444 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:06,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:06,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-21 01:14:06,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:06,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:06,652 INFO L85 PathProgramCache]: Analyzing trace with hash -63513606, now seen corresponding path program 1 times [2023-12-21 01:14:06,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:06,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917645933] [2023-12-21 01:14:06,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:06,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:06,762 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:06,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784403734] [2023-12-21 01:14:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:06,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:06,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:06,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:06,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 01:14:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:07,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:14:07,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:07,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:07,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:07,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917645933] [2023-12-21 01:14:07,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:07,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784403734] [2023-12-21 01:14:07,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784403734] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:07,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:07,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:14:07,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354760168] [2023-12-21 01:14:07,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:07,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:14:07,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:07,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:14:07,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:14:07,137 INFO L87 Difference]: Start difference. First operand 246 states and 404 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:07,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:07,230 INFO L93 Difference]: Finished difference Result 523 states and 854 transitions. [2023-12-21 01:14:07,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:14:07,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 458 [2023-12-21 01:14:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:07,234 INFO L225 Difference]: With dead ends: 523 [2023-12-21 01:14:07,234 INFO L226 Difference]: Without dead ends: 278 [2023-12-21 01:14:07,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:14:07,236 INFO L413 NwaCegarLoop]: 398 mSDtfsCounter, 66 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:07,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1210 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:14:07,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-12-21 01:14:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 248. [2023-12-21 01:14:07,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 178 states have (on average 1.5168539325842696) internal successors, (270), 178 states have internal predecessors, (270), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-21 01:14:07,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 406 transitions. [2023-12-21 01:14:07,271 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 406 transitions. Word has length 458 [2023-12-21 01:14:07,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:07,274 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 406 transitions. [2023-12-21 01:14:07,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:07,274 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 406 transitions. [2023-12-21 01:14:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-21 01:14:07,297 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:07,297 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:07,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-21 01:14:07,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-21 01:14:07,505 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:07,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:07,506 INFO L85 PathProgramCache]: Analyzing trace with hash -872860232, now seen corresponding path program 1 times [2023-12-21 01:14:07,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:07,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984108459] [2023-12-21 01:14:07,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:07,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:07,591 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:07,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623081192] [2023-12-21 01:14:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:07,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:07,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:07,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:07,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 01:14:07,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:07,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 01:14:07,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:08,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:08,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:08,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984108459] [2023-12-21 01:14:08,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:08,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623081192] [2023-12-21 01:14:08,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623081192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:08,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:08,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:14:08,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678485126] [2023-12-21 01:14:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:08,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:14:08,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:08,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:14:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:14:08,277 INFO L87 Difference]: Start difference. First operand 248 states and 406 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:08,526 INFO L93 Difference]: Finished difference Result 797 states and 1304 transitions. [2023-12-21 01:14:08,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:14:08,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 458 [2023-12-21 01:14:08,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:08,531 INFO L225 Difference]: With dead ends: 797 [2023-12-21 01:14:08,531 INFO L226 Difference]: Without dead ends: 550 [2023-12-21 01:14:08,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-21 01:14:08,532 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 802 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:08,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 1552 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:14:08,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-12-21 01:14:08,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 492. [2023-12-21 01:14:08,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 353 states have (on average 1.518413597733711) internal successors, (536), 353 states have internal predecessors, (536), 136 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (136), 136 states have call predecessors, (136), 136 states have call successors, (136) [2023-12-21 01:14:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 808 transitions. [2023-12-21 01:14:08,585 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 808 transitions. Word has length 458 [2023-12-21 01:14:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:08,586 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 808 transitions. [2023-12-21 01:14:08,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 808 transitions. [2023-12-21 01:14:08,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-21 01:14:08,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:08,589 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:08,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:08,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:08,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:08,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:08,803 INFO L85 PathProgramCache]: Analyzing trace with hash 861244218, now seen corresponding path program 1 times [2023-12-21 01:14:08,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:08,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814496609] [2023-12-21 01:14:08,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:08,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:08,844 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:08,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [449974859] [2023-12-21 01:14:08,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:08,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:08,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:08,846 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:08,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 01:14:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:09,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-21 01:14:09,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:09,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:09,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:09,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814496609] [2023-12-21 01:14:09,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:09,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449974859] [2023-12-21 01:14:09,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449974859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:09,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:09,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:14:09,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514437155] [2023-12-21 01:14:09,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:09,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:14:09,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:09,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:14:09,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:14:09,488 INFO L87 Difference]: Start difference. First operand 492 states and 808 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:09,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:09,821 INFO L93 Difference]: Finished difference Result 1570 states and 2575 transitions. [2023-12-21 01:14:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-21 01:14:09,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 458 [2023-12-21 01:14:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:09,832 INFO L225 Difference]: With dead ends: 1570 [2023-12-21 01:14:09,833 INFO L226 Difference]: Without dead ends: 1079 [2023-12-21 01:14:09,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:14:09,837 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 550 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1444 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:09,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1444 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:14:09,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2023-12-21 01:14:09,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 981. [2023-12-21 01:14:09,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 704 states have (on average 1.5170454545454546) internal successors, (1068), 704 states have internal predecessors, (1068), 272 states have call successors, (272), 4 states have call predecessors, (272), 4 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2023-12-21 01:14:09,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1612 transitions. [2023-12-21 01:14:09,945 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1612 transitions. Word has length 458 [2023-12-21 01:14:09,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:09,946 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1612 transitions. [2023-12-21 01:14:09,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1612 transitions. [2023-12-21 01:14:09,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-21 01:14:09,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:09,950 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:09,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:10,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:10,157 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:10,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:10,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1052344785, now seen corresponding path program 1 times [2023-12-21 01:14:10,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:10,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307625531] [2023-12-21 01:14:10,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:10,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:10,202 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:10,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614572547] [2023-12-21 01:14:10,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:10,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:10,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:10,203 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:10,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 01:14:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:10,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 01:14:10,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:10,518 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:10,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:10,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:10,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307625531] [2023-12-21 01:14:10,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:10,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614572547] [2023-12-21 01:14:10,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614572547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:10,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:10,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:14:10,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597095594] [2023-12-21 01:14:10,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:10,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:14:10,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:10,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:14:10,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:14:10,524 INFO L87 Difference]: Start difference. First operand 981 states and 1612 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:10,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:10,624 INFO L93 Difference]: Finished difference Result 2941 states and 4834 transitions. [2023-12-21 01:14:10,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 01:14:10,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 459 [2023-12-21 01:14:10,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:10,631 INFO L225 Difference]: With dead ends: 2941 [2023-12-21 01:14:10,631 INFO L226 Difference]: Without dead ends: 1961 [2023-12-21 01:14:10,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:14:10,634 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 375 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:10,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1659 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:14:10,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1961 states. [2023-12-21 01:14:10,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1961 to 1399. [2023-12-21 01:14:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1122 states have (on average 1.5793226381461676) internal successors, (1772), 1122 states have internal predecessors, (1772), 272 states have call successors, (272), 4 states have call predecessors, (272), 4 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2023-12-21 01:14:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 2316 transitions. [2023-12-21 01:14:10,737 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 2316 transitions. Word has length 459 [2023-12-21 01:14:10,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:10,737 INFO L495 AbstractCegarLoop]: Abstraction has 1399 states and 2316 transitions. [2023-12-21 01:14:10,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:10,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 2316 transitions. [2023-12-21 01:14:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-21 01:14:10,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:10,741 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:10,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:10,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:10,948 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:10,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:10,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1334164721, now seen corresponding path program 1 times [2023-12-21 01:14:10,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:10,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852923268] [2023-12-21 01:14:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:10,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:10,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:10,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141236568] [2023-12-21 01:14:10,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:10,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:10,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:10,994 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:11,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 01:14:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:11,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 01:14:11,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:11,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:11,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:11,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852923268] [2023-12-21 01:14:11,307 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:11,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141236568] [2023-12-21 01:14:11,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141236568] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:11,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:11,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:14:11,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404651666] [2023-12-21 01:14:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:11,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:14:11,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:14:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:14:11,309 INFO L87 Difference]: Start difference. First operand 1399 states and 2316 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:11,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:11,419 INFO L93 Difference]: Finished difference Result 4155 states and 6866 transitions. [2023-12-21 01:14:11,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:14:11,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 459 [2023-12-21 01:14:11,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:11,428 INFO L225 Difference]: With dead ends: 4155 [2023-12-21 01:14:11,429 INFO L226 Difference]: Without dead ends: 2757 [2023-12-21 01:14:11,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:14:11,432 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 375 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:11,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1131 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:14:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2023-12-21 01:14:11,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2727. [2023-12-21 01:14:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 2174 states have (on average 1.5538178472861086) internal successors, (3378), 2174 states have internal predecessors, (3378), 544 states have call successors, (544), 8 states have call predecessors, (544), 8 states have return successors, (544), 544 states have call predecessors, (544), 544 states have call successors, (544) [2023-12-21 01:14:11,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 4466 transitions. [2023-12-21 01:14:11,603 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 4466 transitions. Word has length 459 [2023-12-21 01:14:11,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:11,604 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 4466 transitions. [2023-12-21 01:14:11,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:11,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 4466 transitions. [2023-12-21 01:14:11,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-21 01:14:11,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:11,608 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:11,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:11,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:11,814 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:11,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:11,814 INFO L85 PathProgramCache]: Analyzing trace with hash -352015117, now seen corresponding path program 1 times [2023-12-21 01:14:11,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:11,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125004081] [2023-12-21 01:14:11,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:11,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:11,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:11,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738154041] [2023-12-21 01:14:11,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:11,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:11,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:11,856 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:11,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 01:14:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:12,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 01:14:12,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:12,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:12,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:12,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125004081] [2023-12-21 01:14:12,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:12,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738154041] [2023-12-21 01:14:12,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738154041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:12,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:12,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:14:12,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091295990] [2023-12-21 01:14:12,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:12,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 01:14:12,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:12,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 01:14:12,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:14:12,206 INFO L87 Difference]: Start difference. First operand 2727 states and 4466 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:12,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:12,322 INFO L93 Difference]: Finished difference Result 7259 states and 11880 transitions. [2023-12-21 01:14:12,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 01:14:12,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 459 [2023-12-21 01:14:12,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:12,336 INFO L225 Difference]: With dead ends: 7259 [2023-12-21 01:14:12,336 INFO L226 Difference]: Without dead ends: 4533 [2023-12-21 01:14:12,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-21 01:14:12,343 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 187 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:12,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 825 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 01:14:12,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2023-12-21 01:14:12,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4523. [2023-12-21 01:14:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4523 states, 3866 states have (on average 1.5763062596999482) internal successors, (6094), 3874 states have internal predecessors, (6094), 640 states have call successors, (640), 16 states have call predecessors, (640), 16 states have return successors, (640), 632 states have call predecessors, (640), 640 states have call successors, (640) [2023-12-21 01:14:12,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4523 states to 4523 states and 7374 transitions. [2023-12-21 01:14:12,528 INFO L78 Accepts]: Start accepts. Automaton has 4523 states and 7374 transitions. Word has length 459 [2023-12-21 01:14:12,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:12,528 INFO L495 AbstractCegarLoop]: Abstraction has 4523 states and 7374 transitions. [2023-12-21 01:14:12,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:12,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4523 states and 7374 transitions. [2023-12-21 01:14:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-21 01:14:12,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:12,533 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:12,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:12,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:12,745 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:12,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:12,745 INFO L85 PathProgramCache]: Analyzing trace with hash -570869835, now seen corresponding path program 1 times [2023-12-21 01:14:12,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:12,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398032566] [2023-12-21 01:14:12,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:12,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:12,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:12,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328770593] [2023-12-21 01:14:12,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:12,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:12,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:12,795 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:12,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 01:14:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:13,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 01:14:13,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:13,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:13,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:13,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398032566] [2023-12-21 01:14:13,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:13,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328770593] [2023-12-21 01:14:13,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328770593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:13,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:13,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-21 01:14:13,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188751962] [2023-12-21 01:14:13,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:13,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 01:14:13,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:13,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 01:14:13,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:14:13,949 INFO L87 Difference]: Start difference. First operand 4523 states and 7374 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:14,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:14,237 INFO L93 Difference]: Finished difference Result 10987 states and 17903 transitions. [2023-12-21 01:14:14,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 01:14:14,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 459 [2023-12-21 01:14:14,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:14,259 INFO L225 Difference]: With dead ends: 10987 [2023-12-21 01:14:14,259 INFO L226 Difference]: Without dead ends: 6465 [2023-12-21 01:14:14,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:14:14,268 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 428 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:14,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1550 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:14:14,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6465 states. [2023-12-21 01:14:14,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6465 to 4867. [2023-12-21 01:14:14,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4867 states, 4141 states have (on average 1.570152137164936) internal successors, (6502), 4149 states have internal predecessors, (6502), 708 states have call successors, (708), 17 states have call predecessors, (708), 17 states have return successors, (708), 700 states have call predecessors, (708), 708 states have call successors, (708) [2023-12-21 01:14:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4867 states to 4867 states and 7918 transitions. [2023-12-21 01:14:14,464 INFO L78 Accepts]: Start accepts. Automaton has 4867 states and 7918 transitions. Word has length 459 [2023-12-21 01:14:14,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:14,465 INFO L495 AbstractCegarLoop]: Abstraction has 4867 states and 7918 transitions. [2023-12-21 01:14:14,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:14,465 INFO L276 IsEmpty]: Start isEmpty. Operand 4867 states and 7918 transitions. [2023-12-21 01:14:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2023-12-21 01:14:14,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:14,469 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:14,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:14,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-21 01:14:14,684 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:14,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:14,685 INFO L85 PathProgramCache]: Analyzing trace with hash -988266441, now seen corresponding path program 1 times [2023-12-21 01:14:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:14,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909248863] [2023-12-21 01:14:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:14,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:14,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:14,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1740914542] [2023-12-21 01:14:14,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:14,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:14,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:14,724 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:14,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-21 01:14:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:14,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-21 01:14:14,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:15,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:15,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:15,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909248863] [2023-12-21 01:14:15,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:15,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740914542] [2023-12-21 01:14:15,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740914542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:15,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:15,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-21 01:14:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848534074] [2023-12-21 01:14:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:15,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-21 01:14:15,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:15,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-21 01:14:15,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-21 01:14:15,857 INFO L87 Difference]: Start difference. First operand 4867 states and 7918 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:16,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:16,197 INFO L93 Difference]: Finished difference Result 10304 states and 16770 transitions. [2023-12-21 01:14:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-21 01:14:16,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 459 [2023-12-21 01:14:16,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:16,234 INFO L225 Difference]: With dead ends: 10304 [2023-12-21 01:14:16,235 INFO L226 Difference]: Without dead ends: 5560 [2023-12-21 01:14:16,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-21 01:14:16,245 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 298 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1151 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:16,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1151 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 01:14:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5560 states. [2023-12-21 01:14:16,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5560 to 4866. [2023-12-21 01:14:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4866 states, 4140 states have (on average 1.5695652173913044) internal successors, (6498), 4148 states have internal predecessors, (6498), 708 states have call successors, (708), 17 states have call predecessors, (708), 17 states have return successors, (708), 700 states have call predecessors, (708), 708 states have call successors, (708) [2023-12-21 01:14:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4866 states to 4866 states and 7914 transitions. [2023-12-21 01:14:16,446 INFO L78 Accepts]: Start accepts. Automaton has 4866 states and 7914 transitions. Word has length 459 [2023-12-21 01:14:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:16,447 INFO L495 AbstractCegarLoop]: Abstraction has 4866 states and 7914 transitions. [2023-12-21 01:14:16,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 3 states have internal predecessors, (122), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 4866 states and 7914 transitions. [2023-12-21 01:14:16,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-12-21 01:14:16,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:16,451 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:16,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:16,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:16,655 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:16,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:16,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1233898084, now seen corresponding path program 1 times [2023-12-21 01:14:16,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:16,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597290052] [2023-12-21 01:14:16,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:16,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:16,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:16,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777235477] [2023-12-21 01:14:16,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:16,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:16,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:16,693 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:16,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-21 01:14:16,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:16,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 01:14:16,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 3363 proven. 153 refuted. 0 times theorem prover too weak. 5596 trivial. 0 not checked. [2023-12-21 01:14:17,296 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:14:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 48 proven. 153 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-21 01:14:17,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:17,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597290052] [2023-12-21 01:14:17,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:17,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777235477] [2023-12-21 01:14:17,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777235477] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:14:17,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:14:17,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-21 01:14:17,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134127153] [2023-12-21 01:14:17,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:14:17,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 01:14:17,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:17,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 01:14:17,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:14:17,599 INFO L87 Difference]: Start difference. First operand 4866 states and 7914 transitions. Second operand has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2023-12-21 01:14:18,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:18,028 INFO L93 Difference]: Finished difference Result 9596 states and 15562 transitions. [2023-12-21 01:14:18,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:14:18,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) Word has length 461 [2023-12-21 01:14:18,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:18,039 INFO L225 Difference]: With dead ends: 9596 [2023-12-21 01:14:18,040 INFO L226 Difference]: Without dead ends: 4938 [2023-12-21 01:14:18,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 924 GetRequests, 914 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-21 01:14:18,047 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 413 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:18,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 848 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:14:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4938 states. [2023-12-21 01:14:18,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4938 to 4902. [2023-12-21 01:14:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4902 states, 4167 states have (on average 1.5572354211663066) internal successors, (6489), 4175 states have internal predecessors, (6489), 708 states have call successors, (708), 26 states have call predecessors, (708), 26 states have return successors, (708), 700 states have call predecessors, (708), 708 states have call successors, (708) [2023-12-21 01:14:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 7905 transitions. [2023-12-21 01:14:18,213 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 7905 transitions. Word has length 461 [2023-12-21 01:14:18,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:18,214 INFO L495 AbstractCegarLoop]: Abstraction has 4902 states and 7905 transitions. [2023-12-21 01:14:18,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.0) internal successors, (133), 7 states have internal predecessors, (133), 2 states have call successors, (119), 2 states have call predecessors, (119), 4 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2023-12-21 01:14:18,214 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 7905 transitions. [2023-12-21 01:14:18,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2023-12-21 01:14:18,218 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:18,218 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:18,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:18,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-21 01:14:18,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:18,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:18,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1598817864, now seen corresponding path program 1 times [2023-12-21 01:14:18,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:18,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781512456] [2023-12-21 01:14:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:18,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:18,481 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:18,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565063712] [2023-12-21 01:14:18,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:18,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:18,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:18,483 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:18,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-21 01:14:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:18,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 01:14:18,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:14:19,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 01:14:19,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:19,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781512456] [2023-12-21 01:14:19,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:19,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565063712] [2023-12-21 01:14:19,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565063712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 01:14:19,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 01:14:19,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-21 01:14:19,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339297146] [2023-12-21 01:14:19,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:14:19,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-21 01:14:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-21 01:14:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-21 01:14:19,164 INFO L87 Difference]: Start difference. First operand 4902 states and 7905 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 5 states have internal predecessors, (125), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:19,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:19,846 INFO L93 Difference]: Finished difference Result 12966 states and 20939 transitions. [2023-12-21 01:14:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-21 01:14:19,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 5 states have internal predecessors, (125), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) Word has length 462 [2023-12-21 01:14:19,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:19,861 INFO L225 Difference]: With dead ends: 12966 [2023-12-21 01:14:19,861 INFO L226 Difference]: Without dead ends: 8284 [2023-12-21 01:14:19,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-21 01:14:19,867 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 1407 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:19,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 2104 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-21 01:14:19,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2023-12-21 01:14:20,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 6390. [2023-12-21 01:14:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6390 states, 5466 states have (on average 1.5413465056714233) internal successors, (8425), 5466 states have internal predecessors, (8425), 884 states have call successors, (884), 39 states have call predecessors, (884), 39 states have return successors, (884), 884 states have call predecessors, (884), 884 states have call successors, (884) [2023-12-21 01:14:20,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6390 states to 6390 states and 10193 transitions. [2023-12-21 01:14:20,178 INFO L78 Accepts]: Start accepts. Automaton has 6390 states and 10193 transitions. Word has length 462 [2023-12-21 01:14:20,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:20,178 INFO L495 AbstractCegarLoop]: Abstraction has 6390 states and 10193 transitions. [2023-12-21 01:14:20,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 5 states have internal predecessors, (125), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:14:20,178 INFO L276 IsEmpty]: Start isEmpty. Operand 6390 states and 10193 transitions. [2023-12-21 01:14:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2023-12-21 01:14:20,182 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:20,182 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:20,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:20,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-21 01:14:20,389 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:20,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:20,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1858347332, now seen corresponding path program 1 times [2023-12-21 01:14:20,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:20,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362215835] [2023-12-21 01:14:20,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:20,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:20,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:20,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329018980] [2023-12-21 01:14:20,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:20,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:20,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:20,429 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:20,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-21 01:14:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:20,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-21 01:14:20,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 4243 proven. 129 refuted. 0 times theorem prover too weak. 4740 trivial. 0 not checked. [2023-12-21 01:14:21,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:14:21,356 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 72 proven. 129 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-21 01:14:21,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:21,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362215835] [2023-12-21 01:14:21,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:21,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329018980] [2023-12-21 01:14:21,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329018980] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:14:21,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:14:21,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-21 01:14:21,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653405812] [2023-12-21 01:14:21,357 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:14:21,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:14:21,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:21,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:14:21,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:14:21,358 INFO L87 Difference]: Start difference. First operand 6390 states and 10193 transitions. Second operand has 10 states, 10 states have (on average 22.1) internal successors, (221), 10 states have internal predecessors, (221), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2023-12-21 01:14:21,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:21,851 INFO L93 Difference]: Finished difference Result 12712 states and 20213 transitions. [2023-12-21 01:14:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:14:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.1) internal successors, (221), 10 states have internal predecessors, (221), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) Word has length 462 [2023-12-21 01:14:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:21,866 INFO L225 Difference]: With dead ends: 12712 [2023-12-21 01:14:21,866 INFO L226 Difference]: Without dead ends: 6496 [2023-12-21 01:14:21,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 926 GetRequests, 914 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-12-21 01:14:21,876 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 471 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:21,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1004 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:14:21,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2023-12-21 01:14:22,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 6442. [2023-12-21 01:14:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6442 states, 5505 states have (on average 1.526975476839237) internal successors, (8406), 5505 states have internal predecessors, (8406), 884 states have call successors, (884), 52 states have call predecessors, (884), 52 states have return successors, (884), 884 states have call predecessors, (884), 884 states have call successors, (884) [2023-12-21 01:14:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6442 states to 6442 states and 10174 transitions. [2023-12-21 01:14:22,104 INFO L78 Accepts]: Start accepts. Automaton has 6442 states and 10174 transitions. Word has length 462 [2023-12-21 01:14:22,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:22,104 INFO L495 AbstractCegarLoop]: Abstraction has 6442 states and 10174 transitions. [2023-12-21 01:14:22,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.1) internal successors, (221), 10 states have internal predecessors, (221), 3 states have call successors, (111), 2 states have call predecessors, (111), 4 states have return successors, (112), 3 states have call predecessors, (112), 3 states have call successors, (112) [2023-12-21 01:14:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 6442 states and 10174 transitions. [2023-12-21 01:14:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2023-12-21 01:14:22,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:22,109 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:22,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:22,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-21 01:14:22,319 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:22,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:22,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1271128144, now seen corresponding path program 1 times [2023-12-21 01:14:22,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:22,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062921257] [2023-12-21 01:14:22,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:22,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:22,365 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:22,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796589025] [2023-12-21 01:14:22,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:22,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:22,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:22,366 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:22,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-21 01:14:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:22,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 1166 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 01:14:22,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 4603 proven. 93 refuted. 0 times theorem prover too weak. 4416 trivial. 0 not checked. [2023-12-21 01:14:22,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:14:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 108 proven. 93 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-21 01:14:23,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:23,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062921257] [2023-12-21 01:14:23,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:23,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796589025] [2023-12-21 01:14:23,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796589025] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:14:23,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:14:23,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-12-21 01:14:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873504661] [2023-12-21 01:14:23,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:14:23,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-21 01:14:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:23,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-21 01:14:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-21 01:14:23,067 INFO L87 Difference]: Start difference. First operand 6442 states and 10174 transitions. Second operand has 10 states, 10 states have (on average 16.2) internal successors, (162), 10 states have internal predecessors, (162), 3 states have call successors, (99), 2 states have call predecessors, (99), 4 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2023-12-21 01:14:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:23,608 INFO L93 Difference]: Finished difference Result 12832 states and 20192 transitions. [2023-12-21 01:14:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 01:14:23,609 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 10 states have internal predecessors, (162), 3 states have call successors, (99), 2 states have call predecessors, (99), 4 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) Word has length 463 [2023-12-21 01:14:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:23,620 INFO L225 Difference]: With dead ends: 12832 [2023-12-21 01:14:23,621 INFO L226 Difference]: Without dead ends: 6528 [2023-12-21 01:14:23,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2023-12-21 01:14:23,626 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 444 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:23,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1100 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-21 01:14:23,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6528 states. [2023-12-21 01:14:23,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6528 to 6474. [2023-12-21 01:14:23,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6474 states, 5524 states have (on average 1.5179217958001447) internal successors, (8385), 5524 states have internal predecessors, (8385), 884 states have call successors, (884), 65 states have call predecessors, (884), 65 states have return successors, (884), 884 states have call predecessors, (884), 884 states have call successors, (884) [2023-12-21 01:14:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6474 states to 6474 states and 10153 transitions. [2023-12-21 01:14:23,816 INFO L78 Accepts]: Start accepts. Automaton has 6474 states and 10153 transitions. Word has length 463 [2023-12-21 01:14:23,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:23,817 INFO L495 AbstractCegarLoop]: Abstraction has 6474 states and 10153 transitions. [2023-12-21 01:14:23,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 10 states have internal predecessors, (162), 3 states have call successors, (99), 2 states have call predecessors, (99), 4 states have return successors, (100), 3 states have call predecessors, (100), 3 states have call successors, (100) [2023-12-21 01:14:23,817 INFO L276 IsEmpty]: Start isEmpty. Operand 6474 states and 10153 transitions. [2023-12-21 01:14:23,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2023-12-21 01:14:23,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:23,821 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:23,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:24,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-21 01:14:24,030 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:24,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:24,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1650909360, now seen corresponding path program 1 times [2023-12-21 01:14:24,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:24,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813357399] [2023-12-21 01:14:24,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:24,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:24,066 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:24,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [389096904] [2023-12-21 01:14:24,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:24,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:24,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:24,067 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:24,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-21 01:14:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:24,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 1167 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-21 01:14:24,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 3217 proven. 156 refuted. 0 times theorem prover too weak. 5739 trivial. 0 not checked. [2023-12-21 01:14:25,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:14:25,675 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 45 proven. 156 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-21 01:14:25,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:25,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813357399] [2023-12-21 01:14:25,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:25,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389096904] [2023-12-21 01:14:25,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389096904] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:14:25,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:14:25,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-12-21 01:14:25,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701035648] [2023-12-21 01:14:25,679 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:14:25,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-21 01:14:25,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:25,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-21 01:14:25,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-12-21 01:14:25,680 INFO L87 Difference]: Start difference. First operand 6474 states and 10153 transitions. Second operand has 13 states, 13 states have (on average 15.538461538461538) internal successors, (202), 13 states have internal predecessors, (202), 4 states have call successors, (136), 3 states have call predecessors, (136), 5 states have return successors, (136), 4 states have call predecessors, (136), 4 states have call successors, (136) [2023-12-21 01:14:28,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:28,546 INFO L93 Difference]: Finished difference Result 27384 states and 42900 transitions. [2023-12-21 01:14:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-21 01:14:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 15.538461538461538) internal successors, (202), 13 states have internal predecessors, (202), 4 states have call successors, (136), 3 states have call predecessors, (136), 5 states have return successors, (136), 4 states have call predecessors, (136), 4 states have call successors, (136) Word has length 463 [2023-12-21 01:14:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:28,592 INFO L225 Difference]: With dead ends: 27384 [2023-12-21 01:14:28,592 INFO L226 Difference]: Without dead ends: 21100 [2023-12-21 01:14:28,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 971 GetRequests, 922 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=632, Invalid=1720, Unknown=0, NotChecked=0, Total=2352 [2023-12-21 01:14:28,604 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 5077 mSDsluCounter, 3759 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 1092 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 3035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1092 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:28,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 4096 Invalid, 3035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1092 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 01:14:28,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21100 states. [2023-12-21 01:14:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21100 to 13178. [2023-12-21 01:14:29,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13178 states, 11711 states have (on average 1.5308684143113311) internal successors, (17928), 11727 states have internal predecessors, (17928), 1332 states have call successors, (1332), 134 states have call predecessors, (1332), 134 states have return successors, (1332), 1316 states have call predecessors, (1332), 1332 states have call successors, (1332) [2023-12-21 01:14:29,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13178 states to 13178 states and 20592 transitions. [2023-12-21 01:14:29,197 INFO L78 Accepts]: Start accepts. Automaton has 13178 states and 20592 transitions. Word has length 463 [2023-12-21 01:14:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:29,198 INFO L495 AbstractCegarLoop]: Abstraction has 13178 states and 20592 transitions. [2023-12-21 01:14:29,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.538461538461538) internal successors, (202), 13 states have internal predecessors, (202), 4 states have call successors, (136), 3 states have call predecessors, (136), 5 states have return successors, (136), 4 states have call predecessors, (136), 4 states have call successors, (136) [2023-12-21 01:14:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 13178 states and 20592 transitions. [2023-12-21 01:14:29,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2023-12-21 01:14:29,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:29,203 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:29,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:29,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:29,411 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:29,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:29,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1546672052, now seen corresponding path program 1 times [2023-12-21 01:14:29,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:29,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6831734] [2023-12-21 01:14:29,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:29,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:29,448 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:29,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324008004] [2023-12-21 01:14:29,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:29,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:29,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:29,449 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:29,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-21 01:14:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:29,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-21 01:14:29,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:14:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 4551 proven. 87 refuted. 0 times theorem prover too weak. 4474 trivial. 0 not checked. [2023-12-21 01:14:31,648 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:14:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 114 proven. 87 refuted. 0 times theorem prover too weak. 8911 trivial. 0 not checked. [2023-12-21 01:14:32,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:14:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6831734] [2023-12-21 01:14:32,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:14:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324008004] [2023-12-21 01:14:32,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324008004] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 01:14:32,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-21 01:14:32,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2023-12-21 01:14:32,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909700364] [2023-12-21 01:14:32,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-21 01:14:32,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 01:14:32,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:14:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 01:14:32,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2023-12-21 01:14:32,994 INFO L87 Difference]: Start difference. First operand 13178 states and 20592 transitions. Second operand has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 4 states have call successors, (136), 3 states have call predecessors, (136), 5 states have return successors, (136), 4 states have call predecessors, (136), 4 states have call successors, (136) [2023-12-21 01:14:37,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 01:14:37,696 INFO L93 Difference]: Finished difference Result 41958 states and 66018 transitions. [2023-12-21 01:14:37,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-21 01:14:37,697 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 4 states have call successors, (136), 3 states have call predecessors, (136), 5 states have return successors, (136), 4 states have call predecessors, (136), 4 states have call successors, (136) Word has length 463 [2023-12-21 01:14:37,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 01:14:37,748 INFO L225 Difference]: With dead ends: 41958 [2023-12-21 01:14:37,748 INFO L226 Difference]: Without dead ends: 28974 [2023-12-21 01:14:37,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 965 GetRequests, 913 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=718, Invalid=2144, Unknown=0, NotChecked=0, Total=2862 [2023-12-21 01:14:37,763 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 4992 mSDsluCounter, 5009 mSDsCounter, 0 mSdLazyCounter, 4152 mSolverCounterSat, 985 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5059 SdHoareTripleChecker+Valid, 5400 SdHoareTripleChecker+Invalid, 5137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 985 IncrementalHoareTripleChecker+Valid, 4152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-21 01:14:37,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5059 Valid, 5400 Invalid, 5137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [985 Valid, 4152 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-21 01:14:37,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28974 states. [2023-12-21 01:14:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28974 to 20430. [2023-12-21 01:14:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20430 states, 18351 states have (on average 1.5378998419704648) internal successors, (28222), 18377 states have internal predecessors, (28222), 1862 states have call successors, (1862), 216 states have call predecessors, (1862), 216 states have return successors, (1862), 1836 states have call predecessors, (1862), 1862 states have call successors, (1862) [2023-12-21 01:14:38,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20430 states to 20430 states and 31946 transitions. [2023-12-21 01:14:38,733 INFO L78 Accepts]: Start accepts. Automaton has 20430 states and 31946 transitions. Word has length 463 [2023-12-21 01:14:38,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 01:14:38,734 INFO L495 AbstractCegarLoop]: Abstraction has 20430 states and 31946 transitions. [2023-12-21 01:14:38,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 4 states have call successors, (136), 3 states have call predecessors, (136), 5 states have return successors, (136), 4 states have call predecessors, (136), 4 states have call successors, (136) [2023-12-21 01:14:38,734 INFO L276 IsEmpty]: Start isEmpty. Operand 20430 states and 31946 transitions. [2023-12-21 01:14:38,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2023-12-21 01:14:38,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 01:14:38,740 INFO L195 NwaCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:14:38,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-21 01:14:38,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-21 01:14:38,948 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 01:14:38,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 01:14:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1664788546, now seen corresponding path program 1 times [2023-12-21 01:14:38,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 01:14:38,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292113625] [2023-12-21 01:14:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 01:14:38,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-21 01:14:38,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721914380] [2023-12-21 01:14:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 01:14:38,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 01:14:38,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 01:14:38,990 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 01:14:39,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-21 01:14:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 01:14:39,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-21 01:14:39,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 01:16:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 3295 proven. 60 refuted. 0 times theorem prover too weak. 5757 trivial. 0 not checked. [2023-12-21 01:16:10,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 01:18:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2023-12-21 01:18:04,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 01:18:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292113625] [2023-12-21 01:18:04,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-21 01:18:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721914380] [2023-12-21 01:18:04,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721914380] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-21 01:18:04,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 01:18:04,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [22] total 35 [2023-12-21 01:18:04,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709622957] [2023-12-21 01:18:04,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 01:18:04,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 01:18:04,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 01:18:04,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 01:18:04,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=937, Unknown=7, NotChecked=0, Total=1190 [2023-12-21 01:18:04,481 INFO L87 Difference]: Start difference. First operand 20430 states and 31946 transitions. Second operand has 15 states, 15 states have (on average 8.6) internal successors, (129), 15 states have internal predecessors, (129), 1 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 1 states have call successors, (68) [2023-12-21 01:18:11,749 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse20 (mod c_~var_1_10~0 256))) (let ((.cse19 (mod c_~var_1_7~0 256)) (.cse17 (mod c_~var_1_33~0 256)) (.cse16 (mod c_~var_1_8~0 256)) (.cse18 (mod c_~var_1_9~0 65536)) (.cse11 (= .cse20 0)) (.cse1 (= (mod c_~var_1_15~0 256) 0)) (.cse2 (= (mod c_~var_1_52~0 256) 0)) (.cse21 (mod c_~var_1_47~0 256))) (let ((.cse4 (< c_~var_1_6~0 .cse21)) (.cse5 (and .cse1 .cse2)) (.cse10 (not .cse11)) (.cse3 (= (mod c_~var_1_16~0 256) 0)) (.cse6 (+ .cse18 .cse21)) (.cse12 (and .cse2 (not .cse1) (= .cse20 1))) (.cse8 (and (= (+ .cse17 .cse19) .cse18) (<= .cse17 .cse16))) (.cse7 (mod c_~var_1_6~0 4294967296)) (.cse9 (and (<= (+ 1 .cse16) .cse17) (= .cse18 (+ .cse19 .cse16)))) (.cse0 (= (mod c_~var_1_31~0 256) 0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4) (or .cse5 .cse4) (or (and (or (and (forall ((v_z_73 Int) (v_z_75 Int)) (or (< 4294967295 v_z_75) (= .cse6 (mod (div v_z_73 v_z_75) 4294967296)) (< v_z_75 0) (< v_z_73 0) (< 4294967295 v_z_73))) (forall ((v_z_80 Int)) (or (< 4294967295 v_z_80) (< v_z_80 0) (= .cse6 (mod (div v_z_80 .cse7) 4294967296)))) (forall ((v_z_79 Int) (v_z_76 Int)) (or (< v_z_79 0) (= .cse6 (mod (div v_z_76 v_z_79) 4294967296)) (< 4294967295 v_z_76) (< 4294967295 v_z_79) (= .cse6 (mod (div v_z_76 .cse7) 4294967296)) (< v_z_76 0)))) .cse3) (or .cse8 (and (forall ((v_z_94 Int) (v_z_97 Int)) (or (< 4294967295 v_z_97) (< v_z_97 0) (< v_z_94 0) (= .cse6 (mod (div v_z_94 v_z_97) 4294967296)) (= (mod (div v_z_94 .cse7) 4294967296) .cse6) (< 4294967295 v_z_94))) (forall ((v_z_91 Int) (v_z_93 Int)) (or (< v_z_93 0) (< 4294967295 v_z_93) (< v_z_91 0) (< 4294967295 v_z_91) (= .cse6 (mod (div v_z_91 v_z_93) 4294967296)))) (forall ((v_z_98 Int)) (or (< v_z_98 0) (< 4294967295 v_z_98) (= .cse6 (mod (div v_z_98 .cse7) 4294967296))))) .cse9) (or (and (forall ((v_z_104 Int) (v_z_107 Int)) (or (< 4294967295 v_z_107) (< 4294967295 v_z_104) (< v_z_107 0) (= (mod (div v_z_104 v_z_107) 4294967296) .cse6) (< v_z_104 0) (= (mod (div v_z_104 .cse7) 4294967296) .cse6))) (forall ((v_z_108 Int)) (or (< 4294967295 v_z_108) (< v_z_108 0) (= .cse6 (mod (div v_z_108 .cse7) 4294967296)))) (forall ((v_z_101 Int) (v_z_103 Int)) (or (< 4294967295 v_z_101) (= (mod (div v_z_101 v_z_103) 4294967296) .cse6) (< v_z_101 0) (< 4294967295 v_z_103) (< v_z_103 0)))) .cse5 .cse10) (or (and (forall ((v_z_69 Int) (v_z_67 Int)) (or (< 4294967295 v_z_67) (= .cse6 (mod (div v_z_67 v_z_69) 4294967296)) (= .cse6 (mod (div v_z_67 .cse7) 4294967296)) (< v_z_69 0) (< 4294967295 v_z_69) (< v_z_67 0))) (forall ((v_z_63 Int) (v_z_65 Int)) (or (< v_z_65 0) (= (mod (div v_z_63 v_z_65) 4294967296) .cse6) (< v_z_63 0) (< 4294967295 v_z_63) (< 4294967295 v_z_65))) (forall ((v_z_70 Int)) (or (< 4294967295 v_z_70) (< v_z_70 0) (= .cse6 (mod (div v_z_70 .cse7) 4294967296))))) .cse11 .cse12)) .cse0) (or (let ((.cse13 (mod |c_ULTIMATE.start_step_~stepLocal_0~0#1| 4294967296))) (and (or (and (forall ((v_z_104 Int) (v_z_107 Int)) (or (< 4294967295 v_z_107) (< 4294967295 v_z_104) (< v_z_107 0) (= (mod (div v_z_104 .cse7) 4294967296) .cse13) (= (mod (div v_z_104 v_z_107) 4294967296) .cse13) (< v_z_104 0))) (forall ((v_z_108 Int)) (or (< 4294967295 v_z_108) (= (mod (div v_z_108 .cse7) 4294967296) .cse13) (< v_z_108 0))) (forall ((v_z_101 Int) (v_z_103 Int)) (or (< 4294967295 v_z_101) (< v_z_101 0) (< 4294967295 v_z_103) (= (mod (div v_z_101 v_z_103) 4294967296) .cse13) (< v_z_103 0)))) .cse5 .cse10) (or (and (forall ((v_z_80 Int)) (or (= (mod (div v_z_80 .cse7) 4294967296) .cse13) (< 4294967295 v_z_80) (< v_z_80 0))) (forall ((v_z_73 Int) (v_z_75 Int)) (or (< 4294967295 v_z_75) (= (mod (div v_z_73 v_z_75) 4294967296) .cse13) (< v_z_75 0) (< v_z_73 0) (< 4294967295 v_z_73))) (forall ((v_z_79 Int) (v_z_76 Int)) (or (< v_z_79 0) (< 4294967295 v_z_76) (< 4294967295 v_z_79) (= (mod (div v_z_76 .cse7) 4294967296) .cse13) (= (mod (div v_z_76 v_z_79) 4294967296) .cse13) (< v_z_76 0)))) .cse3) (forall ((v_z_83 Int) (v_z_87 Int)) (let ((.cse14 (mod (div v_z_83 v_z_87) 4294967296))) (or (< 4294967295 v_z_83) (= .cse14 .cse13) (< v_z_87 0) (< 4294967295 v_z_87) (< v_z_83 0) (not (= .cse6 .cse14))))) (forall ((v_z_81 Int)) (let ((.cse15 (mod (div v_z_81 .cse7) 4294967296))) (or (< v_z_81 0) (= .cse15 .cse13) (< 4294967295 v_z_81) (not (= .cse6 .cse15))))) (or (and (forall ((v_z_63 Int) (v_z_65 Int)) (or (< v_z_65 0) (= (mod (div v_z_63 v_z_65) 4294967296) .cse13) (< v_z_63 0) (< 4294967295 v_z_63) (< 4294967295 v_z_65))) (forall ((v_z_70 Int)) (or (< 4294967295 v_z_70) (< v_z_70 0) (= (mod (div v_z_70 .cse7) 4294967296) .cse13))) (forall ((v_z_69 Int) (v_z_67 Int)) (or (< 4294967295 v_z_67) (= .cse13 (mod (div v_z_67 v_z_69) 4294967296)) (= (mod (div v_z_67 .cse7) 4294967296) .cse13) (< v_z_69 0) (< 4294967295 v_z_69) (< v_z_67 0)))) .cse11 .cse12) (or .cse8 (and (forall ((v_z_94 Int) (v_z_97 Int)) (or (< 4294967295 v_z_97) (< v_z_97 0) (= (mod (div v_z_94 v_z_97) 4294967296) .cse13) (< v_z_94 0) (= (mod (div v_z_94 .cse7) 4294967296) .cse13) (< 4294967295 v_z_94))) (forall ((v_z_91 Int) (v_z_93 Int)) (or (= (mod (div v_z_91 v_z_93) 4294967296) .cse13) (< v_z_93 0) (< 4294967295 v_z_93) (< v_z_91 0) (< 4294967295 v_z_91))) (forall ((v_z_98 Int)) (or (< v_z_98 0) (< 4294967295 v_z_98) (= (mod (div v_z_98 .cse7) 4294967296) .cse13)))) .cse9))) .cse0))))) is different from true [2023-12-21 01:18:16,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:23,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:28,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:33,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:38,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:44,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:48,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:54,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:18:58,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:02,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:04,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:06,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:10,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:15,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:21,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:38,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:42,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:19:56,656 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 195 DAG size of output: 194 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-21 01:20:00,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:07,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:13,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:18,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:24,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:30,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:35,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:41,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:47,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:20:52,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:21:04,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:21:14,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:21:21,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:21:23,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:21:33,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:21:37,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:21:44,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:22:06,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:22:38,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:22:41,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:22:45,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:22:56,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:02,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:08,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:09,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:13,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:19,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:23,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:25,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:29,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:45,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:50,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:56,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:23:59,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:01,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:07,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:13,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:17,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:21,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:26,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:30,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:36,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:43,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:49,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:24:54,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:25:00,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:25:05,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:25:12,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:25:17,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:25:29,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:25:35,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:25:55,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:02,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:13,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:17,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:19,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:25,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:27,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:35,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:42,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:47,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:51,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:54,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:26:58,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:02,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:08,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:14,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:19,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:26,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:30,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:35,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:39,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:40,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:44,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:46,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:51,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:56,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:27:57,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:28:03,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:28:08,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:28:14,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:28:19,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:28:22,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:28:27,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-12-21 01:28:28,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] Received shutdown request... [2023-12-21 01:28:31,824 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-21 01:28:31,824 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 [2023-12-21 01:28:32,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-21 01:28:33,033 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-21 01:28:33,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-21 01:28:33,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 961 GetRequests, 898 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1306 ImplicationChecksByTransitivity, 217.7s TimeCoverageRelationStatistics Valid=721, Invalid=3300, Unknown=15, NotChecked=124, Total=4160 [2023-12-21 01:28:33,122 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 2024 mSDsluCounter, 4207 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 50 mSolverCounterUnsat, 73 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 495.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 4704 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 73 IncrementalHoareTripleChecker+Unknown, 51 IncrementalHoareTripleChecker+Unchecked, 497.6s IncrementalHoareTripleChecker+Time [2023-12-21 01:28:33,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 4704 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2218 Invalid, 73 Unknown, 51 Unchecked, 497.6s Time] [2023-12-21 01:28:33,123 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-21 01:28:33,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 01:28:33,123 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-21 01:28:33,126 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 01:28:33,128 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-21 01:28:33,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 01:28:33 BoogieIcfgContainer [2023-12-21 01:28:33,134 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-21 01:28:33,135 INFO L158 Benchmark]: Toolchain (without parser) took 869394.25ms. Allocated memory was 189.8MB in the beginning and 1.2GB in the end (delta: 972.0MB). Free memory was 147.4MB in the beginning and 499.0MB in the end (delta: -351.6MB). Peak memory consumption was 621.1MB. Max. memory is 8.0GB. [2023-12-21 01:28:33,135 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 189.8MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-21 01:28:33,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.06ms. Allocated memory is still 189.8MB. Free memory was 147.0MB in the beginning and 106.8MB in the end (delta: 40.2MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. [2023-12-21 01:28:33,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.58ms. Allocated memory was 189.8MB in the beginning and 276.8MB in the end (delta: 87.0MB). Free memory was 106.8MB in the beginning and 232.0MB in the end (delta: -125.2MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2023-12-21 01:28:33,137 INFO L158 Benchmark]: Boogie Preprocessor took 157.23ms. Allocated memory is still 276.8MB. Free memory was 232.0MB in the beginning and 225.8MB in the end (delta: 6.3MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. [2023-12-21 01:28:33,137 INFO L158 Benchmark]: RCFGBuilder took 982.18ms. Allocated memory is still 276.8MB. Free memory was 225.8MB in the beginning and 213.7MB in the end (delta: 12.0MB). Peak memory consumption was 101.2MB. Max. memory is 8.0GB. [2023-12-21 01:28:33,137 INFO L158 Benchmark]: TraceAbstraction took 867652.88ms. Allocated memory was 276.8MB in the beginning and 1.2GB in the end (delta: 885.0MB). Free memory was 213.2MB in the beginning and 499.0MB in the end (delta: -285.8MB). Peak memory consumption was 599.7MB. Max. memory is 8.0GB. [2023-12-21 01:28:33,140 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 189.8MB. Free memory is still 140.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 449.06ms. Allocated memory is still 189.8MB. Free memory was 147.0MB in the beginning and 106.8MB in the end (delta: 40.2MB). Peak memory consumption was 39.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 148.58ms. Allocated memory was 189.8MB in the beginning and 276.8MB in the end (delta: 87.0MB). Free memory was 106.8MB in the beginning and 232.0MB in the end (delta: -125.2MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 157.23ms. Allocated memory is still 276.8MB. Free memory was 232.0MB in the beginning and 225.8MB in the end (delta: 6.3MB). Peak memory consumption was 58.7MB. Max. memory is 8.0GB. * RCFGBuilder took 982.18ms. Allocated memory is still 276.8MB. Free memory was 225.8MB in the beginning and 213.7MB in the end (delta: 12.0MB). Peak memory consumption was 101.2MB. Max. memory is 8.0GB. * TraceAbstraction took 867652.88ms. Allocated memory was 276.8MB in the beginning and 1.2GB in the end (delta: 885.0MB). Free memory was 213.2MB in the beginning and 499.0MB in the end (delta: -285.8MB). Peak memory consumption was 599.7MB. 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 248 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 867.6s, OverallIterations: 16, TraceHistogramMax: 68, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 640.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 73 mSolverCounterUnknown, 18084 SdHoareTripleChecker+Valid, 505.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17909 mSDsluCounter, 30179 SdHoareTripleChecker+Invalid, 501.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 51 IncrementalHoareTripleChecker+Unchecked, 23362 mSDsCounter, 2838 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10806 IncrementalHoareTripleChecker+Invalid, 13769 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2838 mSolverCounterUnsat, 6817 mSDtfsCounter, 10806 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10265 GetRequests, 10035 SyntacticMatches, 3 SemanticMatches, 227 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2998 ImplicationChecksByTransitivity, 219.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20430occurred in iteration=15, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 21584 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 214.6s InterpolantComputationTime, 7825 NumberOfCodeBlocks, 7825 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 10123 ConstructedInterpolants, 4 QuantifiedInterpolants, 51141 SizeOfPredicates, 85 NumberOfNonLiveVariables, 18675 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 22 InterpolantComputations, 11 PerfectInterpolantSequences, 199168/200464 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