./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench/dijkstra.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/nla-digbench/dijkstra.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 8c2c25cf461f08df93633b3a41b472f1ef6c33d9d6e519054ad0fbe6ddfed0fc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 22:23:46,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 22:23:46,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 22:23:46,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 22:23:46,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 22:23:46,964 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 22:23:46,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 22:23:46,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 22:23:46,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 22:23:46,966 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 22:23:46,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 22:23:46,966 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 22:23:46,966 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 22:23:46,967 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 22:23:46,967 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 22:23:46,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 22:23:46,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 22:23:46,968 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 22:23:46,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 22:23:46,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 22:23:46,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 22:23:46,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 22:23:46,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 22:23:46,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 22:23:46,970 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 22:23:46,970 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 22:23:46,970 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 22:23:46,970 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 22:23:46,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 22:23:46,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 22:23:46,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 22:23:46,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 22:23:46,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 22:23:46,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 22:23:46,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:23:46,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 22:23:46,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 22:23:46,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 22:23:46,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 22:23:46,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 22:23:46,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 22:23:46,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 22:23:46,974 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 22:23:46,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 22:23:46,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c2c25cf461f08df93633b3a41b472f1ef6c33d9d6e519054ad0fbe6ddfed0fc [2024-11-22 22:23:47,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 22:23:47,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 22:23:47,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 22:23:47,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 22:23:47,226 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 22:23:47,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/dijkstra.c [2024-11-22 22:23:48,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 22:23:48,723 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 22:23:48,723 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/dijkstra.c [2024-11-22 22:23:48,729 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e19042d82/48b12f80dcd1444b828ae78e317ad04c/FLAGc91f24874 [2024-11-22 22:23:48,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e19042d82/48b12f80dcd1444b828ae78e317ad04c [2024-11-22 22:23:48,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 22:23:48,744 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 22:23:48,744 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 22:23:48,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 22:23:48,749 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 22:23:48,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:23:48" (1/1) ... [2024-11-22 22:23:48,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37887436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:48, skipping insertion in model container [2024-11-22 22:23:48,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:23:48" (1/1) ... [2024-11-22 22:23:48,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 22:23:48,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:23:48,980 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 22:23:49,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 22:23:49,022 INFO L204 MainTranslator]: Completed translation [2024-11-22 22:23:49,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49 WrapperNode [2024-11-22 22:23:49,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 22:23:49,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 22:23:49,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 22:23:49,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 22:23:49,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,070 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 316 [2024-11-22 22:23:49,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 22:23:49,071 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 22:23:49,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 22:23:49,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 22:23:49,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,087 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,111 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]. [2024-11-22 22:23:49,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 22:23:49,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 22:23:49,144 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 22:23:49,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 22:23:49,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (1/1) ... [2024-11-22 22:23:49,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 22:23:49,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:23:49,182 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) [2024-11-22 22:23:49,188 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 [2024-11-22 22:23:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 22:23:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 22:23:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 22:23:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 22:23:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 22:23:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 22:23:49,267 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 22:23:49,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 22:23:50,385 INFO L? ?]: Removed 585 outVars from TransFormulas that were not future-live. [2024-11-22 22:23:50,386 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 22:23:50,421 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 22:23:50,422 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 22:23:50,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:23:50 BoogieIcfgContainer [2024-11-22 22:23:50,422 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 22:23:50,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 22:23:50,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 22:23:50,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 22:23:50,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:23:48" (1/3) ... [2024-11-22 22:23:50,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f28cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:23:50, skipping insertion in model container [2024-11-22 22:23:50,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:23:49" (2/3) ... [2024-11-22 22:23:50,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13f28cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:23:50, skipping insertion in model container [2024-11-22 22:23:50,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:23:50" (3/3) ... [2024-11-22 22:23:50,436 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra.c [2024-11-22 22:23:50,461 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 22:23:50,465 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 258 error locations. [2024-11-22 22:23:50,535 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 22:23:50,540 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;@12fabe72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 22:23:50,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 258 error locations. [2024-11-22 22:23:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 542 states, 273 states have (on average 1.9743589743589745) internal successors, (539), 531 states have internal predecessors, (539), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-22 22:23:50,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 22:23:50,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:23:50,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 22:23:50,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr188ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:23:50,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:23:50,555 INFO L85 PathProgramCache]: Analyzing trace with hash 28723381, now seen corresponding path program 1 times [2024-11-22 22:23:50,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:23:50,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834919466] [2024-11-22 22:23:50,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:23:50,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:23:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:23:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:23:50,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:23:50,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834919466] [2024-11-22 22:23:50,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834919466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:23:50,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:23:50,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:23:50,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574482806] [2024-11-22 22:23:50,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:23:50,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 22:23:50,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:23:50,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 22:23:50,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:23:50,700 INFO L87 Difference]: Start difference. First operand has 542 states, 273 states have (on average 1.9743589743589745) internal successors, (539), 531 states have internal predecessors, (539), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:23:50,796 INFO L93 Difference]: Finished difference Result 1063 states and 1111 transitions. [2024-11-22 22:23:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 22:23:50,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-22 22:23:50,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:23:50,818 INFO L225 Difference]: With dead ends: 1063 [2024-11-22 22:23:50,818 INFO L226 Difference]: Without dead ends: 523 [2024-11-22 22:23:50,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 22:23:50,856 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:23:50,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 22:23:50,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-22 22:23:50,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-22 22:23:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 268 states have (on average 1.9253731343283582) internal successors, (516), 513 states have internal predecessors, (516), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-22 22:23:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 532 transitions. [2024-11-22 22:23:50,931 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 532 transitions. Word has length 5 [2024-11-22 22:23:50,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:23:50,931 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 532 transitions. [2024-11-22 22:23:50,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 532 transitions. [2024-11-22 22:23:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-22 22:23:50,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:23:50,932 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-22 22:23:50,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 22:23:50,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:23:50,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:23:50,933 INFO L85 PathProgramCache]: Analyzing trace with hash 28699817, now seen corresponding path program 1 times [2024-11-22 22:23:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:23:50,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780286662] [2024-11-22 22:23:50,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:23:50,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:23:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:23:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:23:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:23:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780286662] [2024-11-22 22:23:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780286662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:23:51,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:23:51,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:23:51,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445403893] [2024-11-22 22:23:51,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:23:51,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:23:51,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:23:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:23:51,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:23:51,003 INFO L87 Difference]: Start difference. First operand 523 states and 532 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:51,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:23:51,574 INFO L93 Difference]: Finished difference Result 1288 states and 1420 transitions. [2024-11-22 22:23:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:23:51,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-22 22:23:51,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:23:51,577 INFO L225 Difference]: With dead ends: 1288 [2024-11-22 22:23:51,577 INFO L226 Difference]: Without dead ends: 771 [2024-11-22 22:23:51,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:23:51,583 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 239 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 22:23:51,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 613 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 22:23:51,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-22 22:23:51,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 711. [2024-11-22 22:23:51,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 450 states have (on average 1.9133333333333333) internal successors, (861), 695 states have internal predecessors, (861), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-22 22:23:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 889 transitions. [2024-11-22 22:23:51,643 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 889 transitions. Word has length 5 [2024-11-22 22:23:51,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:23:51,644 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 889 transitions. [2024-11-22 22:23:51,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:51,644 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 889 transitions. [2024-11-22 22:23:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 22:23:51,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:23:51,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 22:23:51,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 22:23:51,644 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:23:51,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:23:51,645 INFO L85 PathProgramCache]: Analyzing trace with hash 889692871, now seen corresponding path program 1 times [2024-11-22 22:23:51,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:23:51,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33412466] [2024-11-22 22:23:51,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:23:51,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:23:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:23:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:23:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:23:51,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33412466] [2024-11-22 22:23:51,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33412466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:23:51,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:23:51,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:23:51,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228757597] [2024-11-22 22:23:51,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:23:51,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:23:51,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:23:51,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:23:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:23:51,716 INFO L87 Difference]: Start difference. First operand 711 states and 889 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:52,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:23:52,715 INFO L93 Difference]: Finished difference Result 1146 states and 1405 transitions. [2024-11-22 22:23:52,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:23:52,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-22 22:23:52,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:23:52,723 INFO L225 Difference]: With dead ends: 1146 [2024-11-22 22:23:52,723 INFO L226 Difference]: Without dead ends: 1085 [2024-11-22 22:23:52,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:23:52,725 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 369 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 22:23:52,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 581 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 22:23:52,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-22 22:23:52,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 970. [2024-11-22 22:23:52,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 701 states have (on average 1.7788873038516406) internal successors, (1247), 946 states have internal predecessors, (1247), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 22:23:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1291 transitions. [2024-11-22 22:23:52,778 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1291 transitions. Word has length 6 [2024-11-22 22:23:52,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:23:52,778 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1291 transitions. [2024-11-22 22:23:52,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1291 transitions. [2024-11-22 22:23:52,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 22:23:52,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:23:52,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:23:52,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 22:23:52,780 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:23:52,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:23:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash 296359209, now seen corresponding path program 1 times [2024-11-22 22:23:52,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:23:52,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150721258] [2024-11-22 22:23:52,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:23:52,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:23:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:23:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:23:52,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:23:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150721258] [2024-11-22 22:23:52,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150721258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:23:52,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:23:52,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:23:52,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328272316] [2024-11-22 22:23:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:23:52,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:23:52,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:23:52,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:23:52,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:23:52,822 INFO L87 Difference]: Start difference. First operand 970 states and 1291 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:23:54,022 INFO L93 Difference]: Finished difference Result 1008 states and 1291 transitions. [2024-11-22 22:23:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:23:54,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-22 22:23:54,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:23:54,026 INFO L225 Difference]: With dead ends: 1008 [2024-11-22 22:23:54,027 INFO L226 Difference]: Without dead ends: 1006 [2024-11-22 22:23:54,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:23:54,028 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 212 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:23:54,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 471 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 22:23:54,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2024-11-22 22:23:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 970. [2024-11-22 22:23:54,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 701 states have (on average 1.776034236804565) internal successors, (1245), 946 states have internal predecessors, (1245), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-22 22:23:54,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1289 transitions. [2024-11-22 22:23:54,048 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1289 transitions. Word has length 8 [2024-11-22 22:23:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:23:54,049 INFO L471 AbstractCegarLoop]: Abstraction has 970 states and 1289 transitions. [2024-11-22 22:23:54,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1289 transitions. [2024-11-22 22:23:54,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 22:23:54,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:23:54,049 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-22 22:23:54,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 22:23:54,050 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:23:54,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:23:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash 642042466, now seen corresponding path program 1 times [2024-11-22 22:23:54,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:23:54,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134699657] [2024-11-22 22:23:54,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:23:54,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:23:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:23:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:23:54,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:23:54,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134699657] [2024-11-22 22:23:54,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134699657] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:23:54,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263272018] [2024-11-22 22:23:54,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:23:54,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:23:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:23:54,091 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) [2024-11-22 22:23:54,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 22:23:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:23:54,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 22:23:54,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:23:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:23:54,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:23:54,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263272018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:23:54,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:23:54,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-22 22:23:54,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733576284] [2024-11-22 22:23:54,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:23:54,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:23:54,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:23:54,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:23:54,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:23:54,184 INFO L87 Difference]: Start difference. First operand 970 states and 1289 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:23:58,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-22 22:24:00,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:24:00,787 INFO L93 Difference]: Finished difference Result 1767 states and 2433 transitions. [2024-11-22 22:24:00,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:24:00,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-22 22:24:00,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:24:00,820 INFO L225 Difference]: With dead ends: 1767 [2024-11-22 22:24:00,820 INFO L226 Difference]: Without dead ends: 1636 [2024-11-22 22:24:00,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 22:24:00,821 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 471 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-22 22:24:00,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1018 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1051 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-22 22:24:00,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-11-22 22:24:00,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1534. [2024-11-22 22:24:00,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1534 states, 1248 states have (on average 1.7700320512820513) internal successors, (2209), 1492 states have internal predecessors, (2209), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 22:24:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 2289 transitions. [2024-11-22 22:24:00,873 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 2289 transitions. Word has length 9 [2024-11-22 22:24:00,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:24:00,874 INFO L471 AbstractCegarLoop]: Abstraction has 1534 states and 2289 transitions. [2024-11-22 22:24:00,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:24:00,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 2289 transitions. [2024-11-22 22:24:00,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-22 22:24:00,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:24:00,874 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-11-22 22:24:00,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 22:24:01,075 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 [2024-11-22 22:24:01,076 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:24:01,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:24:01,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1571519984, now seen corresponding path program 1 times [2024-11-22 22:24:01,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:24:01,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535890774] [2024-11-22 22:24:01,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:01,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:24:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:01,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:01,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:24:01,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535890774] [2024-11-22 22:24:01,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535890774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:24:01,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791793346] [2024-11-22 22:24:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:01,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:01,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:24:01,150 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) [2024-11-22 22:24:01,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 22:24:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:01,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 22:24:01,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:24:01,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:01,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:24:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:01,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791793346] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:24:01,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:24:01,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-22 22:24:01,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665933444] [2024-11-22 22:24:01,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:24:01,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 22:24:01,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:24:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 22:24:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:24:01,263 INFO L87 Difference]: Start difference. First operand 1534 states and 2289 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:24:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:24:03,593 INFO L93 Difference]: Finished difference Result 2928 states and 4412 transitions. [2024-11-22 22:24:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:24:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-22 22:24:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:24:03,605 INFO L225 Difference]: With dead ends: 2928 [2024-11-22 22:24:03,605 INFO L226 Difference]: Without dead ends: 2925 [2024-11-22 22:24:03,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 22:24:03,608 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 1550 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 22:24:03,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 1450 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 22:24:03,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2024-11-22 22:24:03,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 1544. [2024-11-22 22:24:03,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1260 states have (on average 1.7587301587301587) internal successors, (2216), 1502 states have internal predecessors, (2216), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 22:24:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2296 transitions. [2024-11-22 22:24:03,652 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2296 transitions. Word has length 10 [2024-11-22 22:24:03,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:24:03,652 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2296 transitions. [2024-11-22 22:24:03,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:24:03,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2296 transitions. [2024-11-22 22:24:03,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-22 22:24:03,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:24:03,653 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:24:03,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 22:24:03,853 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 [2024-11-22 22:24:03,854 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:24:03,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:24:03,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1596338384, now seen corresponding path program 1 times [2024-11-22 22:24:03,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:24:03,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760024090] [2024-11-22 22:24:03,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:03,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:24:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:03,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:24:03,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760024090] [2024-11-22 22:24:03,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760024090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:24:03,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125831382] [2024-11-22 22:24:03,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:03,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:03,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:24:03,965 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) [2024-11-22 22:24:03,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 22:24:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:03,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 22:24:03,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:24:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:04,062 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:24:04,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125831382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:24:04,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 22:24:04,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-22 22:24:04,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998015474] [2024-11-22 22:24:04,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:24:04,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:24:04,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:24:04,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:24:04,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:24:04,064 INFO L87 Difference]: Start difference. First operand 1544 states and 2296 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:24:05,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:24:05,775 INFO L93 Difference]: Finished difference Result 1634 states and 2298 transitions. [2024-11-22 22:24:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:24:05,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-22 22:24:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:24:05,787 INFO L225 Difference]: With dead ends: 1634 [2024-11-22 22:24:05,787 INFO L226 Difference]: Without dead ends: 1620 [2024-11-22 22:24:05,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:24:05,792 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 442 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 22:24:05,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 606 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 22:24:05,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2024-11-22 22:24:05,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 1544. [2024-11-22 22:24:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1260 states have (on average 1.746031746031746) internal successors, (2200), 1502 states have internal predecessors, (2200), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-22 22:24:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2280 transitions. [2024-11-22 22:24:05,843 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2280 transitions. Word has length 12 [2024-11-22 22:24:05,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:24:05,843 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2280 transitions. [2024-11-22 22:24:05,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:24:05,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2280 transitions. [2024-11-22 22:24:05,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 22:24:05,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:24:05,844 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:24:05,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 22:24:06,046 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 [2024-11-22 22:24:06,047 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:24:06,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:24:06,047 INFO L85 PathProgramCache]: Analyzing trace with hash -2053117579, now seen corresponding path program 1 times [2024-11-22 22:24:06,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:24:06,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317239816] [2024-11-22 22:24:06,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:06,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:24:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:06,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:24:06,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317239816] [2024-11-22 22:24:06,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317239816] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 22:24:06,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701288211] [2024-11-22 22:24:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:06,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:06,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:24:06,121 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) [2024-11-22 22:24:06,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 22:24:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:06,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 22:24:06,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:24:06,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:06,217 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:24:06,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:06,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701288211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:24:06,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 22:24:06,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-11-22 22:24:06,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137012415] [2024-11-22 22:24:06,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 22:24:06,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:24:06,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:24:06,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:24:06,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:24:06,258 INFO L87 Difference]: Start difference. First operand 1544 states and 2280 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:24:08,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:24:08,445 INFO L93 Difference]: Finished difference Result 2830 states and 4273 transitions. [2024-11-22 22:24:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 22:24:08,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-22 22:24:08,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:24:08,455 INFO L225 Difference]: With dead ends: 2830 [2024-11-22 22:24:08,455 INFO L226 Difference]: Without dead ends: 2827 [2024-11-22 22:24:08,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=47, Unknown=0, NotChecked=0, Total=90 [2024-11-22 22:24:08,456 INFO L432 NwaCegarLoop]: 266 mSDtfsCounter, 1352 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-22 22:24:08,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1069 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-22 22:24:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2024-11-22 22:24:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2134. [2024-11-22 22:24:08,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.7183406113537119) internal successors, (3148), 2074 states have internal predecessors, (3148), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-22 22:24:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3264 transitions. [2024-11-22 22:24:08,510 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3264 transitions. Word has length 13 [2024-11-22 22:24:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:24:08,510 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3264 transitions. [2024-11-22 22:24:08,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 22:24:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3264 transitions. [2024-11-22 22:24:08,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-22 22:24:08,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:24:08,511 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:24:08,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 22:24:08,712 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 [2024-11-22 22:24:08,712 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:24:08,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:24:08,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1819848822, now seen corresponding path program 1 times [2024-11-22 22:24:08,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:24:08,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898036115] [2024-11-22 22:24:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:08,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:24:08,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:24:08,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1848316090] [2024-11-22 22:24:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:08,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:08,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:24:08,731 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) [2024-11-22 22:24:08,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 22:24:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:08,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:24:08,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:24:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:08,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:24:08,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:24:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898036115] [2024-11-22 22:24:08,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:24:08,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848316090] [2024-11-22 22:24:08,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848316090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:24:08,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:24:08,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:24:08,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237484938] [2024-11-22 22:24:08,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:24:08,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:24:08,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:24:08,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:24:08,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:24:08,826 INFO L87 Difference]: Start difference. First operand 2134 states and 3264 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:24:09,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:24:09,550 INFO L93 Difference]: Finished difference Result 2174 states and 3264 transitions. [2024-11-22 22:24:09,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:24:09,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-22 22:24:09,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:24:09,555 INFO L225 Difference]: With dead ends: 2174 [2024-11-22 22:24:09,555 INFO L226 Difference]: Without dead ends: 2170 [2024-11-22 22:24:09,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:24:09,556 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 208 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 22:24:09,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 569 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 22:24:09,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-22 22:24:09,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2134. [2024-11-22 22:24:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.7161572052401746) internal successors, (3144), 2074 states have internal predecessors, (3144), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-22 22:24:09,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3260 transitions. [2024-11-22 22:24:09,582 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3260 transitions. Word has length 17 [2024-11-22 22:24:09,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:24:09,582 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3260 transitions. [2024-11-22 22:24:09,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:24:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3260 transitions. [2024-11-22 22:24:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 22:24:09,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:24:09,583 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:24:09,589 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 22:24:09,787 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 [2024-11-22 22:24:09,788 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:24:09,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:24:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash 580738712, now seen corresponding path program 1 times [2024-11-22 22:24:09,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:24:09,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477381931] [2024-11-22 22:24:09,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:09,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:24:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:24:09,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1004627924] [2024-11-22 22:24:09,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:09,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:09,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:24:09,799 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) [2024-11-22 22:24:09,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 22:24:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:09,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:24:09,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:24:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:09,860 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:24:09,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:24:09,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477381931] [2024-11-22 22:24:09,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:24:09,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004627924] [2024-11-22 22:24:09,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004627924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:24:09,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:24:09,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:24:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711363815] [2024-11-22 22:24:09,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:24:09,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:24:09,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:24:09,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:24:09,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:24:09,861 INFO L87 Difference]: Start difference. First operand 2134 states and 3260 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:24:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:24:10,521 INFO L93 Difference]: Finished difference Result 2173 states and 3260 transitions. [2024-11-22 22:24:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:24:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-22 22:24:10,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:24:10,527 INFO L225 Difference]: With dead ends: 2173 [2024-11-22 22:24:10,527 INFO L226 Difference]: Without dead ends: 2170 [2024-11-22 22:24:10,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:24:10,528 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 207 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 22:24:10,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 572 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 22:24:10,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2170 states. [2024-11-22 22:24:10,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2170 to 2134. [2024-11-22 22:24:10,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.7145196506550218) internal successors, (3141), 2074 states have internal predecessors, (3141), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-22 22:24:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3257 transitions. [2024-11-22 22:24:10,575 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3257 transitions. Word has length 18 [2024-11-22 22:24:10,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:24:10,575 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3257 transitions. [2024-11-22 22:24:10,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:24:10,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3257 transitions. [2024-11-22 22:24:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 22:24:10,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:24:10,576 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:24:10,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 22:24:10,776 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 [2024-11-22 22:24:10,777 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:24:10,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:24:10,777 INFO L85 PathProgramCache]: Analyzing trace with hash -255843686, now seen corresponding path program 1 times [2024-11-22 22:24:10,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:24:10,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629407362] [2024-11-22 22:24:10,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:10,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:24:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:24:10,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198464303] [2024-11-22 22:24:10,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:10,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:10,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:24:10,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:24:10,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 22:24:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:10,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 22:24:10,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:24:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:10,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:24:10,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:24:10,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629407362] [2024-11-22 22:24:10,918 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:24:10,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198464303] [2024-11-22 22:24:10,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198464303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:24:10,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:24:10,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 22:24:10,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398163274] [2024-11-22 22:24:10,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:24:10,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 22:24:10,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:24:10,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 22:24:10,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:24:10,919 INFO L87 Difference]: Start difference. First operand 2134 states and 3257 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:24:12,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:24:12,116 INFO L93 Difference]: Finished difference Result 2249 states and 3268 transitions. [2024-11-22 22:24:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 22:24:12,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-22 22:24:12,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:24:12,122 INFO L225 Difference]: With dead ends: 2249 [2024-11-22 22:24:12,122 INFO L226 Difference]: Without dead ends: 2246 [2024-11-22 22:24:12,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 22:24:12,123 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 580 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 22:24:12,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 526 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 22:24:12,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2024-11-22 22:24:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2134. [2024-11-22 22:24:12,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1832 states have (on average 1.705240174672489) internal successors, (3124), 2074 states have internal predecessors, (3124), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-22 22:24:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3240 transitions. [2024-11-22 22:24:12,150 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3240 transitions. Word has length 20 [2024-11-22 22:24:12,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:24:12,150 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3240 transitions. [2024-11-22 22:24:12,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:24:12,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3240 transitions. [2024-11-22 22:24:12,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-22 22:24:12,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:24:12,151 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:24:12,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 22:24:12,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:12,353 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:24:12,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:24:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1521237841, now seen corresponding path program 1 times [2024-11-22 22:24:12,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:24:12,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722692081] [2024-11-22 22:24:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:12,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:24:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:24:12,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431462032] [2024-11-22 22:24:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:24:12,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:24:12,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:24:12,368 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:24:12,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 22:24:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:24:12,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 22:24:12,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:24:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:12,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:24:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:24:12,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:24:12,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722692081] [2024-11-22 22:24:12,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:24:12,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431462032] [2024-11-22 22:24:12,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431462032] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:24:12,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:24:12,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-22 22:24:12,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784560608] [2024-11-22 22:24:12,629 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:24:12,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:24:12,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:24:12,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:24:12,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:24:12,630 INFO L87 Difference]: Start difference. First operand 2134 states and 3240 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 22:24:19,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:20,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:24,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:28,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:32,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:35,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:36,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:38,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:39,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:41,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:45,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:47,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:51,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:55,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:24:59,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:03,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:07,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:10,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:14,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:16,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:17,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:19,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:23,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.88s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:27,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:28,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:29,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-22 22:25:30,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:25:30,363 INFO L93 Difference]: Finished difference Result 2269 states and 3266 transitions. [2024-11-22 22:25:30,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 22:25:30,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-11-22 22:25:30,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:25:30,372 INFO L225 Difference]: With dead ends: 2269 [2024-11-22 22:25:30,373 INFO L226 Difference]: Without dead ends: 2262 [2024-11-22 22:25:30,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=92, Unknown=0, NotChecked=0, Total=156 [2024-11-22 22:25:30,373 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 1555 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 82 mSolverCounterUnsat, 27 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 2633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 27 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.6s IncrementalHoareTripleChecker+Time [2024-11-22 22:25:30,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 1037 Invalid, 2633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2524 Invalid, 27 Unknown, 0 Unchecked, 77.6s Time] [2024-11-22 22:25:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2024-11-22 22:25:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2141. [2024-11-22 22:25:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1840 states have (on average 1.684782608695652) internal successors, (3100), 2080 states have internal predecessors, (3100), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-22 22:25:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3218 transitions. [2024-11-22 22:25:30,413 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3218 transitions. Word has length 21 [2024-11-22 22:25:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:25:30,414 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 3218 transitions. [2024-11-22 22:25:30,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 22:25:30,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3218 transitions. [2024-11-22 22:25:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-22 22:25:30,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:25:30,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:25:30,424 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-22 22:25:30,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 22:25:30,618 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:25:30,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:25:30,619 INFO L85 PathProgramCache]: Analyzing trace with hash 658780410, now seen corresponding path program 1 times [2024-11-22 22:25:30,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:25:30,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831237897] [2024-11-22 22:25:30,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:25:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:25:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:25:30,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1657694572] [2024-11-22 22:25:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:25:30,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:25:30,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:25:30,631 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:25:30,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 22:25:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:25:30,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 22:25:30,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:25:30,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:25:30,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 22:25:30,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:25:30,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831237897] [2024-11-22 22:25:30,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:25:30,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657694572] [2024-11-22 22:25:30,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657694572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 22:25:30,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 22:25:30,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 22:25:30,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511080586] [2024-11-22 22:25:30,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 22:25:30,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 22:25:30,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:25:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 22:25:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:25:30,711 INFO L87 Difference]: Start difference. First operand 2141 states and 3218 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:25:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 22:25:31,562 INFO L93 Difference]: Finished difference Result 2165 states and 3218 transitions. [2024-11-22 22:25:31,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 22:25:31,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-22 22:25:31,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 22:25:31,572 INFO L225 Difference]: With dead ends: 2165 [2024-11-22 22:25:31,572 INFO L226 Difference]: Without dead ends: 2161 [2024-11-22 22:25:31,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 22:25:31,573 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 188 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 22:25:31,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 474 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 22:25:31,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-11-22 22:25:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2141. [2024-11-22 22:25:31,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1840 states have (on average 1.682608695652174) internal successors, (3096), 2080 states have internal predecessors, (3096), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-22 22:25:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3214 transitions. [2024-11-22 22:25:31,607 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3214 transitions. Word has length 21 [2024-11-22 22:25:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 22:25:31,608 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 3214 transitions. [2024-11-22 22:25:31,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-22 22:25:31,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3214 transitions. [2024-11-22 22:25:31,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 22:25:31,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 22:25:31,609 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 22:25:31,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-22 22:25:31,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 22:25:31,810 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 255 more)] === [2024-11-22 22:25:31,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 22:25:31,810 INFO L85 PathProgramCache]: Analyzing trace with hash 86267263, now seen corresponding path program 1 times [2024-11-22 22:25:31,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 22:25:31,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150588828] [2024-11-22 22:25:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:25:31,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 22:25:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 22:25:31,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77292633] [2024-11-22 22:25:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 22:25:31,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 22:25:31,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 22:25:31,821 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 22:25:31,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 22:25:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 22:25:31,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 22:25:31,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 22:25:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:25:31,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 22:25:32,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 22:25:32,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 22:25:32,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150588828] [2024-11-22 22:25:32,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 22:25:32,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77292633] [2024-11-22 22:25:32,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77292633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 22:25:32,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 22:25:32,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-22 22:25:32,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112618503] [2024-11-22 22:25:32,068 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 22:25:32,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 22:25:32,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 22:25:32,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 22:25:32,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-22 22:25:32,069 INFO L87 Difference]: Start difference. First operand 2141 states and 3214 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)