./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45cf92b0c6fea336569aa3c590b09eca22523fff4b1b234a5534ea2e1e74fe84 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 10:07:22,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 10:07:22,174 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-19 10:07:22,178 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 10:07:22,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 10:07:22,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 10:07:22,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 10:07:22,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 10:07:22,200 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 10:07:22,200 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 10:07:22,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 10:07:22,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 10:07:22,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 10:07:22,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 10:07:22,202 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 10:07:22,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 10:07:22,203 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 10:07:22,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 10:07:22,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 10:07:22,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 10:07:22,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 10:07:22,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 10:07:22,208 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 10:07:22,208 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 10:07:22,208 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 10:07:22,209 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 10:07:22,209 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 10:07:22,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 10:07:22,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 10:07:22,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 10:07:22,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 10:07:22,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:07:22,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 10:07:22,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 10:07:22,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 10:07:22,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 10:07:22,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 10:07:22,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 10:07:22,211 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 10:07:22,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 10:07:22,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 10:07:22,213 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45cf92b0c6fea336569aa3c590b09eca22523fff4b1b234a5534ea2e1e74fe84 [2024-11-19 10:07:22,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 10:07:22,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 10:07:22,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 10:07:22,506 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 10:07:22,506 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 10:07:22,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c [2024-11-19 10:07:24,047 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 10:07:24,072 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-19 10:07:24,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 10:07:24,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c [2024-11-19 10:07:24,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e06bc9fc/67a7be0b78394a04b8d21e9a0da9c498/FLAGfc916ef89 [2024-11-19 10:07:24,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e06bc9fc/67a7be0b78394a04b8d21e9a0da9c498 [2024-11-19 10:07:24,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 10:07:24,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 10:07:24,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 10:07:24,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 10:07:24,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 10:07:24,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364b936e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24, skipping insertion in model container [2024-11-19 10:07:24,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 10:07:24,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:07:24,460 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 10:07:24,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:07:24,511 INFO L204 MainTranslator]: Completed translation [2024-11-19 10:07:24,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24 WrapperNode [2024-11-19 10:07:24,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 10:07:24,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 10:07:24,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 10:07:24,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 10:07:24,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,562 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-11-19 10:07:24,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 10:07:24,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 10:07:24,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 10:07:24,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 10:07:24,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,578 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-19 10:07:24,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 10:07:24,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 10:07:24,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 10:07:24,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 10:07:24,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (1/1) ... [2024-11-19 10:07:24,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:07:24,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:07:24,618 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) [2024-11-19 10:07:24,621 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 [2024-11-19 10:07:24,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 10:07:24,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 10:07:24,740 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 10:07:24,743 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 10:07:24,834 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-19 10:07:24,837 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 10:07:24,851 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 10:07:24,851 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 10:07:24,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:24 BoogieIcfgContainer [2024-11-19 10:07:24,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 10:07:24,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 10:07:24,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 10:07:24,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 10:07:24,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:07:24" (1/3) ... [2024-11-19 10:07:24,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127c3fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:07:24, skipping insertion in model container [2024-11-19 10:07:24,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:07:24" (2/3) ... [2024-11-19 10:07:24,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127c3fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:07:24, skipping insertion in model container [2024-11-19 10:07:24,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:07:24" (3/3) ... [2024-11-19 10:07:24,865 INFO L112 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple4.c [2024-11-19 10:07:24,882 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 10:07:24,882 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 10:07:24,954 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 10:07:24,962 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;@76928d93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 10:07:24,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 10:07:24,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 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) [2024-11-19 10:07:24,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-19 10:07:24,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:24,970 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 10:07:24,971 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:24,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:24,975 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2024-11-19 10:07:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:24,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037766527] [2024-11-19 10:07:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:07:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:07:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:25,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:25,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037766527] [2024-11-19 10:07:25,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037766527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:07:25,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:07:25,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:07:25,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724674369] [2024-11-19 10:07:25,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:07:25,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:07:25,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:25,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:07:25,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:07:25,151 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 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) 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) [2024-11-19 10:07:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:25,180 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2024-11-19 10:07:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:07:25,183 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 [2024-11-19 10:07:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:25,190 INFO L225 Difference]: With dead ends: 22 [2024-11-19 10:07:25,190 INFO L226 Difference]: Without dead ends: 11 [2024-11-19 10:07:25,192 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 [2024-11-19 10:07:25,196 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:25,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:07:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-19 10:07:25,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2024-11-19 10:07:25,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 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) [2024-11-19 10:07:25,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-19 10:07:25,226 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2024-11-19 10:07:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:25,227 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-19 10:07:25,227 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) [2024-11-19 10:07:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-19 10:07:25,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 10:07:25,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:25,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 10:07:25,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 10:07:25,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:25,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:25,231 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2024-11-19 10:07:25,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:25,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427555593] [2024-11-19 10:07:25,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:07:25,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:07:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:25,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:25,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427555593] [2024-11-19 10:07:25,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427555593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:07:25,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:07:25,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:07:25,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586287826] [2024-11-19 10:07:25,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:07:25,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:07:25,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:25,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:07:25,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:07:25,287 INFO L87 Difference]: Start difference. First operand 10 states and 10 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) [2024-11-19 10:07:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:25,308 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2024-11-19 10:07:25,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:07:25,312 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 [2024-11-19 10:07:25,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:25,313 INFO L225 Difference]: With dead ends: 10 [2024-11-19 10:07:25,313 INFO L226 Difference]: Without dead ends: 9 [2024-11-19 10:07:25,313 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 [2024-11-19 10:07:25,315 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:25,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:07:25,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-19 10:07:25,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-19 10:07:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2024-11-19 10:07:25,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-19 10:07:25,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2024-11-19 10:07:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:25,324 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-19 10:07:25,324 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) [2024-11-19 10:07:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-19 10:07:25,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 10:07:25,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:25,328 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-19 10:07:25,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 10:07:25,328 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:25,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:25,329 INFO L85 PathProgramCache]: Analyzing trace with hash 124122351, now seen corresponding path program 1 times [2024-11-19 10:07:25,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:25,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410895391] [2024-11-19 10:07:25,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:07:25,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:07:25,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:25,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:25,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410895391] [2024-11-19 10:07:25,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410895391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:07:25,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337697782] [2024-11-19 10:07:25,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:07:25,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:25,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:07:25,413 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) [2024-11-19 10:07:25,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 10:07:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:07:25,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:07:25,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:07:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:25,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:07:25,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:25,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337697782] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:07:25,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:07:25,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-19 10:07:25,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982892544] [2024-11-19 10:07:25,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:07:25,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:07:25,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:25,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:07:25,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:07:25,527 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-19 10:07:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:25,572 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2024-11-19 10:07:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 10:07:25,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 [2024-11-19 10:07:25,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:25,574 INFO L225 Difference]: With dead ends: 19 [2024-11-19 10:07:25,574 INFO L226 Difference]: Without dead ends: 18 [2024-11-19 10:07:25,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:07:25,576 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:25,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:07:25,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-19 10:07:25,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-19 10:07:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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) [2024-11-19 10:07:25,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-19 10:07:25,584 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2024-11-19 10:07:25,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:25,585 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-19 10:07:25,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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) [2024-11-19 10:07:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-19 10:07:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-19 10:07:25,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:25,586 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2024-11-19 10:07:25,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 10:07:25,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:25,787 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:25,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:25,788 INFO L85 PathProgramCache]: Analyzing trace with hash 133078755, now seen corresponding path program 2 times [2024-11-19 10:07:25,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:25,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644338559] [2024-11-19 10:07:25,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:07:25,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:25,813 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:07:25,814 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:25,970 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:25,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:25,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644338559] [2024-11-19 10:07:25,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644338559] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:07:25,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426442512] [2024-11-19 10:07:25,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 10:07:25,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:07:25,975 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) [2024-11-19 10:07:25,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 10:07:26,021 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 10:07:26,021 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:26,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 10:07:26,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:07:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:26,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:07:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:26,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426442512] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:07:26,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:07:26,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-19 10:07:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072917851] [2024-11-19 10:07:26,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:07:26,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 10:07:26,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:26,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 10:07:26,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:07:26,188 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2024-11-19 10:07:26,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:26,245 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2024-11-19 10:07:26,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 10:07:26,245 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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 17 [2024-11-19 10:07:26,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:26,246 INFO L225 Difference]: With dead ends: 37 [2024-11-19 10:07:26,246 INFO L226 Difference]: Without dead ends: 36 [2024-11-19 10:07:26,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:07:26,248 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:26,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:07:26,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-19 10:07:26,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-19 10:07:26,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 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) [2024-11-19 10:07:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2024-11-19 10:07:26,260 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 17 [2024-11-19 10:07:26,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:26,260 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2024-11-19 10:07:26,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 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) [2024-11-19 10:07:26,261 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2024-11-19 10:07:26,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 10:07:26,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:26,261 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2024-11-19 10:07:26,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 10:07:26,462 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,SelfDestructingSolverStorable3 [2024-11-19 10:07:26,463 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:26,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:26,463 INFO L85 PathProgramCache]: Analyzing trace with hash -511083421, now seen corresponding path program 3 times [2024-11-19 10:07:26,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:26,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081726597] [2024-11-19 10:07:26,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:07:26,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:26,482 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 10:07:26,482 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:26,851 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:26,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:26,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081726597] [2024-11-19 10:07:26,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081726597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:07:26,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348226074] [2024-11-19 10:07:26,856 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 10:07:26,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:26,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:07:26,859 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) [2024-11-19 10:07:26,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 10:07:26,907 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 10:07:26,907 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:26,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:07:26,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:07:27,015 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:27,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:07:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:27,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348226074] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:07:27,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:07:27,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-19 10:07:27,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069528197] [2024-11-19 10:07:27,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:07:27,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 10:07:27,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:27,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 10:07:27,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-19 10:07:27,351 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 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) [2024-11-19 10:07:27,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:27,445 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2024-11-19 10:07:27,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 10:07:27,446 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 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 35 [2024-11-19 10:07:27,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:27,447 INFO L225 Difference]: With dead ends: 73 [2024-11-19 10:07:27,447 INFO L226 Difference]: Without dead ends: 72 [2024-11-19 10:07:27,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-11-19 10:07:27,449 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:27,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:07:27,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-19 10:07:27,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-19 10:07:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.0140845070422535) internal successors, (72), 71 states have internal predecessors, (72), 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) [2024-11-19 10:07:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2024-11-19 10:07:27,462 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 35 [2024-11-19 10:07:27,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:27,462 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2024-11-19 10:07:27,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 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) [2024-11-19 10:07:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2024-11-19 10:07:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-19 10:07:27,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:27,468 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1, 1] [2024-11-19 10:07:27,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 10:07:27,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:27,669 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:27,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:27,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2119309155, now seen corresponding path program 4 times [2024-11-19 10:07:27,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:27,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405843513] [2024-11-19 10:07:27,670 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:07:27,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:27,697 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:07:27,697 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:28,311 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:28,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:28,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405843513] [2024-11-19 10:07:28,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405843513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:07:28,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999131197] [2024-11-19 10:07:28,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 10:07:28,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:28,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:07:28,314 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) [2024-11-19 10:07:28,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 10:07:28,353 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 10:07:28,353 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:28,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 10:07:28,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:07:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:28,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:07:29,416 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:29,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999131197] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:07:29,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:07:29,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-19 10:07:29,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604340306] [2024-11-19 10:07:29,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:07:29,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-19 10:07:29,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:29,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-19 10:07:29,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 10:07:29,421 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand has 48 states, 47 states have (on average 2.978723404255319) internal successors, (140), 48 states have internal predecessors, (140), 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) [2024-11-19 10:07:29,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:29,594 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions. [2024-11-19 10:07:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-19 10:07:29,595 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.978723404255319) internal successors, (140), 48 states have internal predecessors, (140), 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 71 [2024-11-19 10:07:29,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:29,597 INFO L225 Difference]: With dead ends: 145 [2024-11-19 10:07:29,597 INFO L226 Difference]: Without dead ends: 144 [2024-11-19 10:07:29,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 10:07:29,599 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:29,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 55 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:07:29,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-19 10:07:29,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-19 10:07:29,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.006993006993007) internal successors, (144), 143 states have internal predecessors, (144), 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) [2024-11-19 10:07:29,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2024-11-19 10:07:29,617 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 71 [2024-11-19 10:07:29,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:29,618 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2024-11-19 10:07:29,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.978723404255319) internal successors, (140), 48 states have internal predecessors, (140), 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) [2024-11-19 10:07:29,618 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2024-11-19 10:07:29,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-19 10:07:29,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:29,626 INFO L215 NwaCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1, 1] [2024-11-19 10:07:29,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 10:07:29,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:29,827 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:29,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1036963171, now seen corresponding path program 5 times [2024-11-19 10:07:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:29,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850910070] [2024-11-19 10:07:29,828 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:07:29,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:29,894 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-19 10:07:29,894 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:31,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:31,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:31,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850910070] [2024-11-19 10:07:31,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850910070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:07:31,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033631729] [2024-11-19 10:07:31,580 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 10:07:31,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:07:31,582 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) [2024-11-19 10:07:31,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 10:07:31,657 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-19 10:07:31,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:31,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-19 10:07:31,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:07:31,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:31,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:07:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:34,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033631729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:07:34,577 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:07:34,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-11-19 10:07:34,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384718217] [2024-11-19 10:07:34,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:07:34,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-19 10:07:34,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:34,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-19 10:07:34,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-19 10:07:34,583 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand has 96 states, 95 states have (on average 2.9894736842105263) internal successors, (284), 96 states have internal predecessors, (284), 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) [2024-11-19 10:07:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:34,888 INFO L93 Difference]: Finished difference Result 289 states and 336 transitions. [2024-11-19 10:07:34,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-19 10:07:34,888 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.9894736842105263) internal successors, (284), 96 states have internal predecessors, (284), 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 143 [2024-11-19 10:07:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:34,891 INFO L225 Difference]: With dead ends: 289 [2024-11-19 10:07:34,891 INFO L226 Difference]: Without dead ends: 288 [2024-11-19 10:07:34,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-11-19 10:07:34,895 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:34,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:07:34,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-19 10:07:34,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-19 10:07:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 1.0034843205574913) internal successors, (288), 287 states have internal predecessors, (288), 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) [2024-11-19 10:07:34,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 288 transitions. [2024-11-19 10:07:34,917 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 288 transitions. Word has length 143 [2024-11-19 10:07:34,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:34,917 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 288 transitions. [2024-11-19 10:07:34,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.9894736842105263) internal successors, (284), 96 states have internal predecessors, (284), 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) [2024-11-19 10:07:34,918 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 288 transitions. [2024-11-19 10:07:34,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-19 10:07:34,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:34,922 INFO L215 NwaCegarLoop]: trace histogram [95, 94, 94, 1, 1, 1, 1] [2024-11-19 10:07:34,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 10:07:35,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:35,123 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:35,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash 561396067, now seen corresponding path program 6 times [2024-11-19 10:07:35,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:35,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933068386] [2024-11-19 10:07:35,124 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:07:35,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:35,245 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-19 10:07:35,245 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:40,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:07:40,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933068386] [2024-11-19 10:07:40,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933068386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:07:40,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256285959] [2024-11-19 10:07:40,864 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 10:07:40,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:40,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:07:40,866 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) [2024-11-19 10:07:40,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 10:07:41,013 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-19 10:07:41,013 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 10:07:41,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-19 10:07:41,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:07:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:41,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:07:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:07:50,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256285959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:07:50,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:07:50,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-11-19 10:07:50,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906726042] [2024-11-19 10:07:50,679 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:07:50,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-19 10:07:50,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:07:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-19 10:07:50,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-11-19 10:07:50,693 INFO L87 Difference]: Start difference. First operand 288 states and 288 transitions. Second operand has 192 states, 191 states have (on average 2.994764397905759) internal successors, (572), 192 states have internal predecessors, (572), 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) [2024-11-19 10:07:51,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:07:51,569 INFO L93 Difference]: Finished difference Result 577 states and 672 transitions. [2024-11-19 10:07:51,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-11-19 10:07:51,570 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.994764397905759) internal successors, (572), 192 states have internal predecessors, (572), 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 287 [2024-11-19 10:07:51,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:07:51,576 INFO L225 Difference]: With dead ends: 577 [2024-11-19 10:07:51,576 INFO L226 Difference]: Without dead ends: 576 [2024-11-19 10:07:51,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-11-19 10:07:51,580 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 10:07:51,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 203 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 10:07:51,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-19 10:07:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2024-11-19 10:07:51,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 575 states have (on average 1.0017391304347827) internal successors, (576), 575 states have internal predecessors, (576), 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) [2024-11-19 10:07:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 576 transitions. [2024-11-19 10:07:51,612 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 576 transitions. Word has length 287 [2024-11-19 10:07:51,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:07:51,613 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 576 transitions. [2024-11-19 10:07:51,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.994764397905759) internal successors, (572), 192 states have internal predecessors, (572), 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) [2024-11-19 10:07:51,614 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 576 transitions. [2024-11-19 10:07:51,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-19 10:07:51,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:07:51,628 INFO L215 NwaCegarLoop]: trace histogram [191, 190, 190, 1, 1, 1, 1] [2024-11-19 10:07:51,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 10:07:51,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:07:51,833 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:07:51,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:07:51,833 INFO L85 PathProgramCache]: Analyzing trace with hash -478342813, now seen corresponding path program 7 times [2024-11-19 10:07:51,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:07:51,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741356782] [2024-11-19 10:07:51,834 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:07:51,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:07:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:08:12,095 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:08:12,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:08:12,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741356782] [2024-11-19 10:08:12,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741356782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:08:12,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558581870] [2024-11-19 10:08:12,096 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 10:08:12,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:08:12,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:08:12,098 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) [2024-11-19 10:08:12,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 10:08:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:08:12,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-11-19 10:08:12,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:08:12,926 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:08:12,926 INFO L311 TraceCheckSpWp]: Computing backward predicates...