./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 93e64a210ad8295ef3e6c8bf5a4996e01ec752ae44f5068490e5115d4dda29b5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:14:23,363 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:14:23,418 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-09 11:14:23,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:14:23,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:14:23,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:14:23,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:14:23,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:14:23,446 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:14:23,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:14:23,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:14:23,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:14:23,449 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:14:23,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:14:23,450 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:14:23,450 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:14:23,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:14:23,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:14:23,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:14:23,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:14:23,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:14:23,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:14:23,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:14:23,453 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:14:23,453 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:14:23,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:14:23,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:14:23,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:14:23,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:14:23,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:14:23,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:14:23,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:14:23,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:14:23,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:14:23,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:14:23,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:14:23,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:14:23,455 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:14:23,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:14:23,455 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:14:23,455 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:14:23,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93e64a210ad8295ef3e6c8bf5a4996e01ec752ae44f5068490e5115d4dda29b5 [2024-11-09 11:14:23,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:14:23,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:14:23,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:14:23,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:14:23,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:14:23,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c [2024-11-09 11:14:24,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:14:25,028 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:14:25,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/EvenOdd01-2.c [2024-11-09 11:14:25,037 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc1cc524f/a2ec870e7c19426fb801ed2f07543ced/FLAG6e0405fda [2024-11-09 11:14:25,049 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cc1cc524f/a2ec870e7c19426fb801ed2f07543ced [2024-11-09 11:14:25,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:14:25,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:14:25,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:14:25,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:14:25,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:14:25,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158842d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25, skipping insertion in model container [2024-11-09 11:14:25,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:14:25,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:14:25,278 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:14:25,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:14:25,300 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:14:25,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25 WrapperNode [2024-11-09 11:14:25,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:14:25,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:14:25,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:14:25,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:14:25,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,323 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2024-11-09 11:14:25,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:14:25,327 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:14:25,327 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:14:25,327 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:14:25,334 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,353 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]. [2024-11-09 11:14:25,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,357 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,358 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:14:25,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:14:25,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:14:25,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:14:25,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (1/1) ... [2024-11-09 11:14:25,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:14:25,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:25,392 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) [2024-11-09 11:14:25,397 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 [2024-11-09 11:14:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 11:14:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2024-11-09 11:14:25,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2024-11-09 11:14:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 11:14:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2024-11-09 11:14:25,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2024-11-09 11:14:25,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:14:25,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:14:25,475 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:14:25,476 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:14:25,571 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-11-09 11:14:25,571 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:14:25,582 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:14:25,582 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 11:14:25,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:14:25 BoogieIcfgContainer [2024-11-09 11:14:25,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:14:25,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:14:25,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:14:25,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:14:25,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:14:25" (1/3) ... [2024-11-09 11:14:25,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a90603c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:14:25, skipping insertion in model container [2024-11-09 11:14:25,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:14:25" (2/3) ... [2024-11-09 11:14:25,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a90603c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:14:25, skipping insertion in model container [2024-11-09 11:14:25,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:14:25" (3/3) ... [2024-11-09 11:14:25,590 INFO L112 eAbstractionObserver]: Analyzing ICFG EvenOdd01-2.c [2024-11-09 11:14:25,601 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:14:25,601 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 11:14:25,644 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:14:25,649 INFO L333 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, 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;@4a18b7a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:14:25,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 11:14:25,652 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.434782608695652) internal successors, (33), 27 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 11:14:25,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 11:14:25,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:25,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:14:25,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:25,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:25,660 INFO L85 PathProgramCache]: Analyzing trace with hash -591146757, now seen corresponding path program 1 times [2024-11-09 11:14:25,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:25,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228841923] [2024-11-09 11:14:25,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:25,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:25,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:25,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228841923] [2024-11-09 11:14:25,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228841923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:14:25,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:14:25,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:14:25,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112151659] [2024-11-09 11:14:25,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:14:25,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:14:25,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:25,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:14:25,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:14:25,868 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.434782608695652) internal successors, (33), 27 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:25,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:25,939 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2024-11-09 11:14:25,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:14:25,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 11:14:25,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:25,950 INFO L225 Difference]: With dead ends: 50 [2024-11-09 11:14:25,950 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 11:14:25,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:14:25,954 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:25,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 114 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:14:25,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 11:14:25,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2024-11-09 11:14:25,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:25,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-11-09 11:14:25,977 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 8 [2024-11-09 11:14:25,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:25,977 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-11-09 11:14:25,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:25,977 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-11-09 11:14:25,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 11:14:25,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:25,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:14:25,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:14:25,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting isOddErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:25,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:25,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1145680225, now seen corresponding path program 1 times [2024-11-09 11:14:25,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:25,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660348532] [2024-11-09 11:14:25,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:25,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:26,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:26,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660348532] [2024-11-09 11:14:26,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660348532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:14:26,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:14:26,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:14:26,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857806170] [2024-11-09 11:14:26,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:14:26,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:14:26,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:26,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:14:26,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:14:26,045 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:26,076 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2024-11-09 11:14:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:14:26,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 11:14:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:26,078 INFO L225 Difference]: With dead ends: 27 [2024-11-09 11:14:26,078 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 11:14:26,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:14:26,079 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:26,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 55 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:14:26,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 11:14:26,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2024-11-09 11:14:26,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2024-11-09 11:14:26,083 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 9 [2024-11-09 11:14:26,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:26,084 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2024-11-09 11:14:26,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,084 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2024-11-09 11:14:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 11:14:26,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:26,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:14:26,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 11:14:26,085 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:26,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:26,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1411844509, now seen corresponding path program 1 times [2024-11-09 11:14:26,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:26,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203481824] [2024-11-09 11:14:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:26,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:26,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:26,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203481824] [2024-11-09 11:14:26,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203481824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:14:26,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:14:26,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 11:14:26,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075442794] [2024-11-09 11:14:26,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:14:26,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 11:14:26,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:26,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 11:14:26,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 11:14:26,205 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:26,275 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2024-11-09 11:14:26,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 11:14:26,275 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 11:14:26,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:26,278 INFO L225 Difference]: With dead ends: 34 [2024-11-09 11:14:26,279 INFO L226 Difference]: Without dead ends: 33 [2024-11-09 11:14:26,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 11:14:26,281 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 13 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:26,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 55 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:14:26,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-09 11:14:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 30. [2024-11-09 11:14:26,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 25 states have internal predecessors, (26), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2024-11-09 11:14:26,286 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 14 [2024-11-09 11:14:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:26,287 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2024-11-09 11:14:26,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2024-11-09 11:14:26,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 11:14:26,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:26,287 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:14:26,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 11:14:26,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:26,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:26,288 INFO L85 PathProgramCache]: Analyzing trace with hash 817506861, now seen corresponding path program 1 times [2024-11-09 11:14:26,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:26,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068724817] [2024-11-09 11:14:26,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:26,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:26,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:26,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068724817] [2024-11-09 11:14:26,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068724817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:14:26,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:14:26,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 11:14:26,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128266688] [2024-11-09 11:14:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:14:26,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 11:14:26,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:26,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 11:14:26,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 11:14:26,378 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:26,432 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2024-11-09 11:14:26,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 11:14:26,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-09 11:14:26,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:26,433 INFO L225 Difference]: With dead ends: 30 [2024-11-09 11:14:26,433 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 11:14:26,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-09 11:14:26,436 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:26,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 26 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:14:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 11:14:26,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 11:14:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2024-11-09 11:14:26,443 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 15 [2024-11-09 11:14:26,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:26,443 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2024-11-09 11:14:26,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,443 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2024-11-09 11:14:26,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 11:14:26,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:26,445 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:14:26,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 11:14:26,445 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:26,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash 814713805, now seen corresponding path program 1 times [2024-11-09 11:14:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8645442] [2024-11-09 11:14:26,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:26,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:26,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:26,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8645442] [2024-11-09 11:14:26,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8645442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:26,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099818410] [2024-11-09 11:14:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:26,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:26,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:26,553 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) [2024-11-09 11:14:26,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:14:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:26,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 11:14:26,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:26,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:26,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099818410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:26,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:26,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-09 11:14:26,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791569554] [2024-11-09 11:14:26,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:26,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 11:14:26,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:26,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 11:14:26,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-09 11:14:26,751 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 16 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:26,873 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2024-11-09 11:14:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 11:14:26,874 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-09 11:14:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:26,874 INFO L225 Difference]: With dead ends: 50 [2024-11-09 11:14:26,875 INFO L226 Difference]: Without dead ends: 48 [2024-11-09 11:14:26,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-09 11:14:26,876 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 50 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:26,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 67 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:14:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-09 11:14:26,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2024-11-09 11:14:26,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.054054054054054) internal successors, (39), 38 states have internal predecessors, (39), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2024-11-09 11:14:26,890 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 20 [2024-11-09 11:14:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:26,890 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2024-11-09 11:14:26,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 10 states have internal predecessors, (32), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:26,891 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2024-11-09 11:14:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 11:14:26,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:26,891 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 11:14:26,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 11:14:27,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:27,092 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:27,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:27,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1485747903, now seen corresponding path program 1 times [2024-11-09 11:14:27,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:27,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335750912] [2024-11-09 11:14:27,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:27,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:27,277 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:27,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:27,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335750912] [2024-11-09 11:14:27,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335750912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:27,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917257607] [2024-11-09 11:14:27,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:27,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:27,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:27,280 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) [2024-11-09 11:14:27,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:14:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:27,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 11:14:27,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:27,366 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:27,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:27,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917257607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:27,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:27,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-09 11:14:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785015020] [2024-11-09 11:14:27,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:27,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 11:14:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 11:14:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2024-11-09 11:14:27,573 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 28 states, 25 states have (on average 2.48) internal successors, (62), 16 states have internal predecessors, (62), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:27,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:27,849 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2024-11-09 11:14:27,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 11:14:27,850 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 2.48) internal successors, (62), 16 states have internal predecessors, (62), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2024-11-09 11:14:27,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:27,851 INFO L225 Difference]: With dead ends: 92 [2024-11-09 11:14:27,851 INFO L226 Difference]: Without dead ends: 90 [2024-11-09 11:14:27,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=252, Invalid=1308, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 11:14:27,852 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 130 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:27,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 67 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:14:27,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-09 11:14:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2024-11-09 11:14:27,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 73 states have internal predecessors, (74), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2024-11-09 11:14:27,863 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 38 [2024-11-09 11:14:27,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:27,863 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2024-11-09 11:14:27,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 2.48) internal successors, (62), 16 states have internal predecessors, (62), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:27,864 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2024-11-09 11:14:27,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 11:14:27,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:27,866 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2024-11-09 11:14:27,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 11:14:28,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 11:14:28,070 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:28,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:28,071 INFO L85 PathProgramCache]: Analyzing trace with hash 419769575, now seen corresponding path program 2 times [2024-11-09 11:14:28,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:28,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020929362] [2024-11-09 11:14:28,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:28,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:28,544 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:28,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:28,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020929362] [2024-11-09 11:14:28,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020929362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:28,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862886397] [2024-11-09 11:14:28,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:14:28,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:28,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:28,547 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) [2024-11-09 11:14:28,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 11:14:28,596 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:14:28,596 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:28,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 11:14:28,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:28,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:29,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862886397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:29,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:29,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2024-11-09 11:14:29,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106167207] [2024-11-09 11:14:29,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:29,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-09 11:14:29,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-09 11:14:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2024-11-09 11:14:29,321 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand has 56 states, 53 states have (on average 2.490566037735849) internal successors, (132), 30 states have internal predecessors, (132), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:29,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:29,980 INFO L93 Difference]: Finished difference Result 170 states and 181 transitions. [2024-11-09 11:14:29,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-09 11:14:29,980 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 2.490566037735849) internal successors, (132), 30 states have internal predecessors, (132), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-09 11:14:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:29,981 INFO L225 Difference]: With dead ends: 170 [2024-11-09 11:14:29,982 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 11:14:29,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1737 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=970, Invalid=5510, Unknown=0, NotChecked=0, Total=6480 [2024-11-09 11:14:29,984 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 330 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:29,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 110 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:14:29,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 11:14:29,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 166. [2024-11-09 11:14:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 137 states have (on average 1.0145985401459854) internal successors, (139), 138 states have internal predecessors, (139), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:29,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2024-11-09 11:14:29,995 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 80 [2024-11-09 11:14:29,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:29,996 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2024-11-09 11:14:29,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 2.490566037735849) internal successors, (132), 30 states have internal predecessors, (132), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2024-11-09 11:14:29,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-09 11:14:29,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:29,998 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 1, 1, 1, 1, 1] [2024-11-09 11:14:30,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 11:14:30,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:30,199 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:30,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:30,199 INFO L85 PathProgramCache]: Analyzing trace with hash 127234933, now seen corresponding path program 2 times [2024-11-09 11:14:30,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:30,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031093352] [2024-11-09 11:14:30,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:30,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:31,502 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:31,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:31,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031093352] [2024-11-09 11:14:31,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031093352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:31,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221938015] [2024-11-09 11:14:31,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:14:31,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:31,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:31,504 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) [2024-11-09 11:14:31,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 11:14:31,556 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:14:31,556 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:31,559 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-09 11:14:31,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:31,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:33,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221938015] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:33,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:33,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2024-11-09 11:14:33,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274534852] [2024-11-09 11:14:33,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:33,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2024-11-09 11:14:33,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:33,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2024-11-09 11:14:33,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1514, Invalid=10042, Unknown=0, NotChecked=0, Total=11556 [2024-11-09 11:14:33,402 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand has 108 states, 105 states have (on average 2.4952380952380953) internal successors, (262), 56 states have internal predecessors, (262), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:34,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:34,906 INFO L93 Difference]: Finished difference Result 332 states and 357 transitions. [2024-11-09 11:14:34,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2024-11-09 11:14:34,906 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 105 states have (on average 2.4952380952380953) internal successors, (262), 56 states have internal predecessors, (262), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2024-11-09 11:14:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:34,908 INFO L225 Difference]: With dead ends: 332 [2024-11-09 11:14:34,908 INFO L226 Difference]: Without dead ends: 330 [2024-11-09 11:14:34,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7600 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3672, Invalid=21768, Unknown=0, NotChecked=0, Total=25440 [2024-11-09 11:14:34,913 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 670 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:34,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 127 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 11:14:34,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-11-09 11:14:34,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 328. [2024-11-09 11:14:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 272 states have (on average 1.0073529411764706) internal successors, (274), 273 states have internal predecessors, (274), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:34,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 328 transitions. [2024-11-09 11:14:34,933 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 328 transitions. Word has length 158 [2024-11-09 11:14:34,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:34,933 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 328 transitions. [2024-11-09 11:14:34,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 105 states have (on average 2.4952380952380953) internal successors, (262), 56 states have internal predecessors, (262), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:34,934 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 328 transitions. [2024-11-09 11:14:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-09 11:14:34,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:34,941 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1] [2024-11-09 11:14:34,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 11:14:35,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:35,141 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:35,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash -2143767729, now seen corresponding path program 3 times [2024-11-09 11:14:35,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:35,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338178874] [2024-11-09 11:14:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:14:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4004 backedges. 0 proven. 4004 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:38,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:14:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338178874] [2024-11-09 11:14:38,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338178874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:14:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370892886] [2024-11-09 11:14:38,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:14:38,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:38,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:14:38,910 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) [2024-11-09 11:14:38,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 11:14:39,010 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2024-11-09 11:14:39,010 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:14:39,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 108 conjuncts are in the unsatisfiable core [2024-11-09 11:14:39,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:14:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4004 backedges. 0 proven. 4004 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:39,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:14:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4004 backedges. 0 proven. 4004 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:14:44,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370892886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:14:44,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:14:44,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108, 108] total 215 [2024-11-09 11:14:44,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299294269] [2024-11-09 11:14:44,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:14:44,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2024-11-09 11:14:44,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:14:44,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2024-11-09 11:14:44,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5944, Invalid=40496, Unknown=0, NotChecked=0, Total=46440 [2024-11-09 11:14:44,486 INFO L87 Difference]: Start difference. First operand 328 states and 328 transitions. Second operand has 216 states, 213 states have (on average 2.4976525821596245) internal successors, (532), 110 states have internal predecessors, (532), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:14:49,547 INFO L93 Difference]: Finished difference Result 650 states and 701 transitions. [2024-11-09 11:14:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2024-11-09 11:14:49,548 INFO L78 Accepts]: Start accepts. Automaton has has 216 states, 213 states have (on average 2.4976525821596245) internal successors, (532), 110 states have internal predecessors, (532), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2024-11-09 11:14:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:14:49,551 INFO L225 Difference]: With dead ends: 650 [2024-11-09 11:14:49,551 INFO L226 Difference]: Without dead ends: 648 [2024-11-09 11:14:49,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32497 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=14530, Invalid=88190, Unknown=0, NotChecked=0, Total=102720 [2024-11-09 11:14:49,557 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 2095 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 11:14:49,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 155 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 11:14:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-11-09 11:14:49,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 646. [2024-11-09 11:14:49,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 537 states have (on average 1.0037243947858474) internal successors, (539), 538 states have internal predecessors, (539), 107 states have call successors, (107), 107 states have call predecessors, (107), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:49,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 646 transitions. [2024-11-09 11:14:49,591 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 646 transitions. Word has length 320 [2024-11-09 11:14:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:14:49,592 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 646 transitions. [2024-11-09 11:14:49,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 213 states have (on average 2.4976525821596245) internal successors, (532), 110 states have internal predecessors, (532), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:14:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 646 transitions. [2024-11-09 11:14:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2024-11-09 11:14:49,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:14:49,601 INFO L215 NwaCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 1, 1, 1, 1, 1] [2024-11-09 11:14:49,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 11:14:49,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:14:49,802 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:14:49,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:14:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1120918459, now seen corresponding path program 3 times [2024-11-09 11:14:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:14:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726005071] [2024-11-09 11:14:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:14:49,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:14:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:05,564 INFO L134 CoverageAnalysis]: Checked inductivity of 16432 backedges. 0 proven. 16432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:05,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:05,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726005071] [2024-11-09 11:15:05,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726005071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:05,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326523104] [2024-11-09 11:15:05,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:15:05,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:05,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:05,565 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) [2024-11-09 11:15:05,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 11:15:05,804 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 53 check-sat command(s) [2024-11-09 11:15:05,805 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:05,818 INFO L255 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 214 conjuncts are in the unsatisfiable core [2024-11-09 11:15:05,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16432 backedges. 0 proven. 16432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:06,391 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:25,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16432 backedges. 0 proven. 16432 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:25,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326523104] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:25,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:25,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [214, 214, 214] total 427 [2024-11-09 11:15:25,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950378488] [2024-11-09 11:15:25,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:25,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 428 states [2024-11-09 11:15:25,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:25,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 428 interpolants. [2024-11-09 11:15:25,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23114, Invalid=159642, Unknown=0, NotChecked=0, Total=182756 [2024-11-09 11:15:25,268 INFO L87 Difference]: Start difference. First operand 646 states and 646 transitions. Second operand has 428 states, 425 states have (on average 2.498823529411765) internal successors, (1062), 216 states have internal predecessors, (1062), 212 states have call successors, (212), 212 states have call predecessors, (212), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:46,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:46,085 INFO L93 Difference]: Finished difference Result 1292 states and 1397 transitions. [2024-11-09 11:15:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 428 states. [2024-11-09 11:15:46,086 INFO L78 Accepts]: Start accepts. Automaton has has 428 states, 425 states have (on average 2.498823529411765) internal successors, (1062), 216 states have internal predecessors, (1062), 212 states have call successors, (212), 212 states have call predecessors, (212), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 638 [2024-11-09 11:15:46,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:46,090 INFO L225 Difference]: With dead ends: 1292 [2024-11-09 11:15:46,090 INFO L226 Difference]: Without dead ends: 1290 [2024-11-09 11:15:46,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1700 GetRequests, 1062 SyntacticMatches, 0 SemanticMatches, 638 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132720 ImplicationChecksByTransitivity, 41.4s TimeCoverageRelationStatistics Valid=57352, Invalid=351608, Unknown=0, NotChecked=0, Total=408960 [2024-11-09 11:15:46,106 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 4495 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4495 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 2535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:46,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4495 Valid, 180 Invalid, 2535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 11:15:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2024-11-09 11:15:46,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1288. [2024-11-09 11:15:46,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1072 states have (on average 1.001865671641791) internal successors, (1074), 1073 states have internal predecessors, (1074), 214 states have call successors, (214), 214 states have call predecessors, (214), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:46,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1288 transitions. [2024-11-09 11:15:46,145 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1288 transitions. Word has length 638 [2024-11-09 11:15:46,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:46,146 INFO L471 AbstractCegarLoop]: Abstraction has 1288 states and 1288 transitions. [2024-11-09 11:15:46,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 428 states, 425 states have (on average 2.498823529411765) internal successors, (1062), 216 states have internal predecessors, (1062), 212 states have call successors, (212), 212 states have call predecessors, (212), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:46,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1288 transitions. [2024-11-09 11:15:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1281 [2024-11-09 11:15:46,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:46,157 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 106, 106, 106, 106, 106, 106, 106, 106, 106, 1, 1, 1, 1, 1] [2024-11-09 11:15:46,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 11:15:46,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:46,357 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [isEvenErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, isEvenErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, isOddErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-09 11:15:46,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:46,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1522078481, now seen corresponding path program 4 times [2024-11-09 11:15:46,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:46,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511447492] [2024-11-09 11:15:46,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:46,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat