./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/rec_counter3.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 d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:15:10,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:15:10,710 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-09 11:15:10,718 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:15:10,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:15:10,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:15:10,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:15:10,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:15:10,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:15:10,758 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:15:10,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:15:10,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:15:10,761 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:15:10,761 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:15:10,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:15:10,762 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:15:10,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:15:10,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:15:10,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:15:10,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:15:10,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:15:10,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:15:10,768 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:15:10,768 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:15:10,769 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:15:10,769 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:15:10,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:15:10,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:15:10,770 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:15:10,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:15:10,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:15:10,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:15:10,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:15:10,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:15:10,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:15:10,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:15:10,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:15:10,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:15:10,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:15:10,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:15:10,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:15:10,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 [2024-11-09 11:15:11,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:15:11,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:15:11,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:15:11,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:15:11,109 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:15:11,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-11-09 11:15:12,628 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:15:12,795 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:15:12,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter3.c [2024-11-09 11:15:12,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d11c3b1d1/0b873dfe3863495ba4766d7523a1e8ce/FLAGf0413d43b [2024-11-09 11:15:13,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d11c3b1d1/0b873dfe3863495ba4766d7523a1e8ce [2024-11-09 11:15:13,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:15:13,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:15:13,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:15:13,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:15:13,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:15:13,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cdf4783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13, skipping insertion in model container [2024-11-09 11:15:13,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,222 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:15:13,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:15:13,421 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:15:13,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:15:13,450 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:15:13,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13 WrapperNode [2024-11-09 11:15:13,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:15:13,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:15:13,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:15:13,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:15:13,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,481 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2024-11-09 11:15:13,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:15:13,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:15:13,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:15:13,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:15:13,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,502 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 11:15:13,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,503 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:15:13,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:15:13,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:15:13,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:15:13,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (1/1) ... [2024-11-09 11:15:13,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:15:13,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:13,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 11:15:13,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 11:15:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-11-09 11:15:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-11-09 11:15:13,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:15:13,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:15:13,648 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:15:13,650 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:15:13,766 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-09 11:15:13,767 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:15:13,784 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:15:13,784 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 11:15:13,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:15:13 BoogieIcfgContainer [2024-11-09 11:15:13,785 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:15:13,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:15:13,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:15:13,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:15:13,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:15:13" (1/3) ... [2024-11-09 11:15:13,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592a9959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:15:13, skipping insertion in model container [2024-11-09 11:15:13,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:15:13" (2/3) ... [2024-11-09 11:15:13,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592a9959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:15:13, skipping insertion in model container [2024-11-09 11:15:13,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:15:13" (3/3) ... [2024-11-09 11:15:13,795 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_counter3.c [2024-11-09 11:15:13,813 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:15:13,814 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 11:15:13,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:15:13,874 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;@285c59a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:15:13,874 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 11:15:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:15:13,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 11:15:13,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:13,883 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:13,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:13,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:13,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1089293515, now seen corresponding path program 1 times [2024-11-09 11:15:13,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:13,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578695278] [2024-11-09 11:15:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:13,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:14,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:14,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:14,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578695278] [2024-11-09 11:15:14,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578695278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:15:14,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:15:14,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:15:14,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199437257] [2024-11-09 11:15:14,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:15:14,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:15:14,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:15:14,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:15:14,125 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 24 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:14,217 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-11-09 11:15:14,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:15:14,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 11:15:14,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:14,225 INFO L225 Difference]: With dead ends: 65 [2024-11-09 11:15:14,226 INFO L226 Difference]: Without dead ends: 39 [2024-11-09 11:15:14,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:15:14,232 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 34 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:14,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 100 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:14,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-09 11:15:14,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2024-11-09 11:15:14,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 29 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:15:14,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-09 11:15:14,266 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2024-11-09 11:15:14,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:14,267 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-09 11:15:14,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:14,267 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-09 11:15:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 11:15:14,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:14,268 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:14,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:15:14,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:14,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:14,269 INFO L85 PathProgramCache]: Analyzing trace with hash -591639365, now seen corresponding path program 1 times [2024-11-09 11:15:14,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:14,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854880258] [2024-11-09 11:15:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:14,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:14,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:14,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:14,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854880258] [2024-11-09 11:15:14,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854880258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:15:14,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:15:14,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 11:15:14,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074709550] [2024-11-09 11:15:14,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:15:14,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:15:14,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:14,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:15:14,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:15:14,357 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:14,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:14,418 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2024-11-09 11:15:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:15:14,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 11:15:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:14,422 INFO L225 Difference]: With dead ends: 36 [2024-11-09 11:15:14,422 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 11:15:14,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:15:14,424 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 31 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:14,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 38 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:14,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 11:15:14,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2024-11-09 11:15:14,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:15:14,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2024-11-09 11:15:14,435 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 8 [2024-11-09 11:15:14,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:14,435 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2024-11-09 11:15:14,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:14,436 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2024-11-09 11:15:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 11:15:14,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:14,436 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:14,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 11:15:14,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:14,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1479083013, now seen corresponding path program 1 times [2024-11-09 11:15:14,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:14,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853241770] [2024-11-09 11:15:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:14,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:14,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:14,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853241770] [2024-11-09 11:15:14,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853241770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:14,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074423469] [2024-11-09 11:15:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:14,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:14,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:14,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:14,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:15:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:14,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 11:15:14,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:14,658 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:15:14,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074423469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:14,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:14,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-09 11:15:14,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26464020] [2024-11-09 11:15:14,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:14,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 11:15:14,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:14,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 11:15:14,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:15:14,784 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:14,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:14,885 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2024-11-09 11:15:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 11:15:14,885 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 11:15:14,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:14,887 INFO L225 Difference]: With dead ends: 39 [2024-11-09 11:15:14,887 INFO L226 Difference]: Without dead ends: 38 [2024-11-09 11:15:14,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2024-11-09 11:15:14,891 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 115 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:14,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 64 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:14,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-09 11:15:14,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2024-11-09 11:15:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:15:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2024-11-09 11:15:14,905 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 12 [2024-11-09 11:15:14,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:14,906 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2024-11-09 11:15:14,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:15:14,906 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2024-11-09 11:15:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 11:15:14,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:14,908 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:14,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 11:15:15,112 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 [2024-11-09 11:15:15,113 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:15,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:15,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1411454171, now seen corresponding path program 1 times [2024-11-09 11:15:15,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:15,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159417144] [2024-11-09 11:15:15,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:15,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 11:15:15,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:15,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159417144] [2024-11-09 11:15:15,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159417144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:15:15,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:15:15,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:15:15,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897862096] [2024-11-09 11:15:15,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:15:15,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:15:15,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:15,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:15:15,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:15:15,188 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:15,200 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2024-11-09 11:15:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:15:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 11:15:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:15,204 INFO L225 Difference]: With dead ends: 32 [2024-11-09 11:15:15,204 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 11:15:15,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:15:15,206 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:15,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 11:15:15,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 11:15:15,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:15:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-11-09 11:15:15,218 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 16 [2024-11-09 11:15:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:15,218 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-11-09 11:15:15,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,219 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-11-09 11:15:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 11:15:15,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:15,219 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:15,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 11:15:15,220 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:15,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:15,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1411454226, now seen corresponding path program 1 times [2024-11-09 11:15:15,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:15,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708427058] [2024-11-09 11:15:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:15,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 11:15:15,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:15,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708427058] [2024-11-09 11:15:15,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708427058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:15:15,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:15:15,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:15:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199001] [2024-11-09 11:15:15,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:15:15,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:15:15,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:15,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:15:15,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:15:15,302 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:15,315 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2024-11-09 11:15:15,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:15:15,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 11:15:15,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:15,317 INFO L225 Difference]: With dead ends: 31 [2024-11-09 11:15:15,317 INFO L226 Difference]: Without dead ends: 30 [2024-11-09 11:15:15,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:15:15,322 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:15,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 35 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:15,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-09 11:15:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-09 11:15:15,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:15:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-09 11:15:15,328 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2024-11-09 11:15:15,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:15,329 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-09 11:15:15,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,329 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-09 11:15:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 11:15:15,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:15,330 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:15,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 11:15:15,331 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:15,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:15,331 INFO L85 PathProgramCache]: Analyzing trace with hash 805406401, now seen corresponding path program 1 times [2024-11-09 11:15:15,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:15,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458713724] [2024-11-09 11:15:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:15,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 11:15:15,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:15,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458713724] [2024-11-09 11:15:15,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458713724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:15:15,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:15:15,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 11:15:15,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028393048] [2024-11-09 11:15:15,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:15:15,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:15:15,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:15:15,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:15:15,409 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:15,435 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2024-11-09 11:15:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:15:15,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-09 11:15:15,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:15,436 INFO L225 Difference]: With dead ends: 37 [2024-11-09 11:15:15,437 INFO L226 Difference]: Without dead ends: 34 [2024-11-09 11:15:15,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:15:15,438 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:15,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:15,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-09 11:15:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-09 11:15:15,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.25) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:15:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2024-11-09 11:15:15,451 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 17 [2024-11-09 11:15:15,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:15,451 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2024-11-09 11:15:15,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,452 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2024-11-09 11:15:15,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 11:15:15,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:15,452 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:15,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 11:15:15,453 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:15,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:15,453 INFO L85 PathProgramCache]: Analyzing trace with hash 805408099, now seen corresponding path program 1 times [2024-11-09 11:15:15,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:15,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623103712] [2024-11-09 11:15:15,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:15,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 11:15:15,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:15,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623103712] [2024-11-09 11:15:15,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623103712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:15:15,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:15:15,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 11:15:15,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336264503] [2024-11-09 11:15:15,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:15:15,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 11:15:15,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:15,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 11:15:15,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:15:15,562 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:15,584 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2024-11-09 11:15:15,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 11:15:15,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-09 11:15:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:15,586 INFO L225 Difference]: With dead ends: 60 [2024-11-09 11:15:15,586 INFO L226 Difference]: Without dead ends: 38 [2024-11-09 11:15:15,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:15:15,587 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 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 [2024-11-09 11:15:15,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-09 11:15:15,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-09 11:15:15,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 11:15:15,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-11-09 11:15:15,604 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 17 [2024-11-09 11:15:15,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:15,604 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-11-09 11:15:15,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:15:15,604 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-11-09 11:15:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 11:15:15,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:15,605 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:15,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 11:15:15,606 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:15,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash 842415392, now seen corresponding path program 1 times [2024-11-09 11:15:15,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:15,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348532291] [2024-11-09 11:15:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:15,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 11:15:15,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:15,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348532291] [2024-11-09 11:15:15,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348532291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:15,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936989896] [2024-11-09 11:15:15,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:15,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:15,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:15,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:15,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:15:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:15,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 11:15:15,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 11:15:15,920 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:15:15,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936989896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:15:15,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:15:15,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-09 11:15:15,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799237101] [2024-11-09 11:15:15,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:15:15,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:15:15,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:15:15,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 11:15:15,922 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:15:15,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:15,946 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-09 11:15:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 11:15:15,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-09 11:15:15,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:15,948 INFO L225 Difference]: With dead ends: 38 [2024-11-09 11:15:15,949 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 11:15:15,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-09 11:15:15,950 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:15,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:15:15,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 11:15:15,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 11:15:15,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 11:15:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-09 11:15:15,958 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 28 [2024-11-09 11:15:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:15,958 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-09 11:15:15,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 11:15:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-09 11:15:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 11:15:15,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:15,960 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:15,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 11:15:16,163 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,SelfDestructingSolverStorable7 [2024-11-09 11:15:16,164 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:16,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:16,165 INFO L85 PathProgramCache]: Analyzing trace with hash 903079569, now seen corresponding path program 1 times [2024-11-09 11:15:16,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:16,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799737326] [2024-11-09 11:15:16,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:16,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:16,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:16,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 11:15:16,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799737326] [2024-11-09 11:15:16,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799737326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:16,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463151878] [2024-11-09 11:15:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:16,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:16,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:16,249 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:16,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 11:15:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:16,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 11:15:16,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 11:15:16,382 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:16,561 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 11:15:16,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463151878] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:16,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:16,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 16 [2024-11-09 11:15:16,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986062344] [2024-11-09 11:15:16,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:16,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 11:15:16,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:16,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 11:15:16,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-09 11:15:16,567 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 11:15:16,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:16,770 INFO L93 Difference]: Finished difference Result 110 states and 137 transitions. [2024-11-09 11:15:16,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 11:15:16,770 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 31 [2024-11-09 11:15:16,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:16,773 INFO L225 Difference]: With dead ends: 110 [2024-11-09 11:15:16,775 INFO L226 Difference]: Without dead ends: 79 [2024-11-09 11:15:16,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=127, Invalid=575, Unknown=0, NotChecked=0, Total=702 [2024-11-09 11:15:16,777 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:16,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 104 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:15:16,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-09 11:15:16,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-11-09 11:15:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.208955223880597) internal successors, (81), 67 states have internal predecessors, (81), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 11:15:16,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2024-11-09 11:15:16,801 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 31 [2024-11-09 11:15:16,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:16,801 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2024-11-09 11:15:16,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.875) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 11:15:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2024-11-09 11:15:16,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 11:15:16,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:16,804 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:16,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 11:15:17,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:17,011 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:17,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:17,011 INFO L85 PathProgramCache]: Analyzing trace with hash 637811316, now seen corresponding path program 2 times [2024-11-09 11:15:17,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:17,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201201335] [2024-11-09 11:15:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:17,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:17,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:17,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:17,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:17,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:17,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:17,611 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 118 proven. 25 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 11:15:17,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:17,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201201335] [2024-11-09 11:15:17,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201201335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:17,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362636250] [2024-11-09 11:15:17,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:15:17,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:17,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:17,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:17,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 11:15:17,670 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:15:17,671 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:17,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 11:15:17,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:17,842 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 110 proven. 35 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-09 11:15:17,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 110 proven. 35 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-09 11:15:18,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362636250] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:18,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:18,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 18, 18] total 21 [2024-11-09 11:15:18,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188420351] [2024-11-09 11:15:18,620 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:18,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 11:15:18,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:18,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 11:15:18,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-09 11:15:18,623 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 17 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 11:15:18,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:18,807 INFO L93 Difference]: Finished difference Result 143 states and 173 transitions. [2024-11-09 11:15:18,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-09 11:15:18,808 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 17 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 82 [2024-11-09 11:15:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:18,809 INFO L225 Difference]: With dead ends: 143 [2024-11-09 11:15:18,809 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 11:15:18,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 152 SyntacticMatches, 16 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-09 11:15:18,811 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:18,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:15:18,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 11:15:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-09 11:15:18,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 76 states have (on average 1.0921052631578947) internal successors, (83), 76 states have internal predecessors, (83), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 11:15:18,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 92 transitions. [2024-11-09 11:15:18,828 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 92 transitions. Word has length 82 [2024-11-09 11:15:18,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:18,828 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 92 transitions. [2024-11-09 11:15:18,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 17 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 11:15:18,828 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 92 transitions. [2024-11-09 11:15:18,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-09 11:15:18,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:18,830 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:18,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 11:15:19,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:19,035 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:19,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:19,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1485258322, now seen corresponding path program 3 times [2024-11-09 11:15:19,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:19,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428769139] [2024-11-09 11:15:19,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:19,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:19,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:19,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:19,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:19,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:19,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 183 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 11:15:19,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:19,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428769139] [2024-11-09 11:15:19,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428769139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:19,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015182479] [2024-11-09 11:15:19,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:15:19,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:19,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:19,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:19,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 11:15:19,596 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 11:15:19,596 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:19,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 11:15:19,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-09 11:15:19,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:19,941 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 84 proven. 12 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-09 11:15:19,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015182479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:19,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:19,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 31 [2024-11-09 11:15:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188387838] [2024-11-09 11:15:19,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:19,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 11:15:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 11:15:19,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2024-11-09 11:15:19,945 INFO L87 Difference]: Start difference. First operand 85 states and 92 transitions. Second operand has 32 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 27 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 11:15:20,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:20,301 INFO L93 Difference]: Finished difference Result 152 states and 174 transitions. [2024-11-09 11:15:20,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-09 11:15:20,301 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 27 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) Word has length 88 [2024-11-09 11:15:20,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:20,303 INFO L225 Difference]: With dead ends: 152 [2024-11-09 11:15:20,303 INFO L226 Difference]: Without dead ends: 131 [2024-11-09 11:15:20,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=631, Invalid=2339, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 11:15:20,306 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:20,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:15:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-09 11:15:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2024-11-09 11:15:20,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 117 states have (on average 1.1111111111111112) internal successors, (130), 117 states have internal predecessors, (130), 3 states have call successors, (3), 2 states have call predecessors, (3), 6 states have return successors, (7), 7 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 11:15:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 140 transitions. [2024-11-09 11:15:20,318 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 140 transitions. Word has length 88 [2024-11-09 11:15:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:20,318 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 140 transitions. [2024-11-09 11:15:20,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 27 states have internal predecessors, (79), 1 states have call successors, (2), 1 states have call predecessors, (2), 6 states have return successors, (6), 6 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 11:15:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 140 transitions. [2024-11-09 11:15:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 11:15:20,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:20,321 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:20,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 11:15:20,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 11:15:20,526 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:20,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:20,526 INFO L85 PathProgramCache]: Analyzing trace with hash 899953489, now seen corresponding path program 4 times [2024-11-09 11:15:20,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748964238] [2024-11-09 11:15:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:20,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 11:15:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:20,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:21,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:21,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:21,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:21,225 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-09 11:15:21,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:21,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748964238] [2024-11-09 11:15:21,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748964238] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:21,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063277790] [2024-11-09 11:15:21,226 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 11:15:21,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:21,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:21,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:21,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 11:15:21,304 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 11:15:21,304 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:21,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 11:15:21,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-09 11:15:21,450 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-09 11:15:22,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063277790] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:22,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:22,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 41 [2024-11-09 11:15:22,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528782315] [2024-11-09 11:15:22,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:22,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-09 11:15:22,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:22,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-09 11:15:22,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=1400, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 11:15:22,908 INFO L87 Difference]: Start difference. First operand 127 states and 140 transitions. Second operand has 42 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 29 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 13 states have return successors, (13), 13 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-09 11:15:23,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:23,096 INFO L93 Difference]: Finished difference Result 654 states and 738 transitions. [2024-11-09 11:15:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 11:15:23,097 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 29 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 13 states have return successors, (13), 13 states have call predecessors, (13), 1 states have call successors, (13) Word has length 133 [2024-11-09 11:15:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:23,104 INFO L225 Difference]: With dead ends: 654 [2024-11-09 11:15:23,104 INFO L226 Difference]: Without dead ends: 478 [2024-11-09 11:15:23,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=398, Invalid=1764, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 11:15:23,110 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:23,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 163 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:15:23,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-09 11:15:23,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 232. [2024-11-09 11:15:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 215 states have (on average 1.0930232558139534) internal successors, (235), 215 states have internal predecessors, (235), 3 states have call successors, (3), 2 states have call predecessors, (3), 13 states have return successors, (14), 14 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 11:15:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 252 transitions. [2024-11-09 11:15:23,148 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 252 transitions. Word has length 133 [2024-11-09 11:15:23,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:23,150 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 252 transitions. [2024-11-09 11:15:23,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 2.6097560975609757) internal successors, (107), 29 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 13 states have return successors, (13), 13 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-09 11:15:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 252 transitions. [2024-11-09 11:15:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-09 11:15:23,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:23,155 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:23,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 11:15:23,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:23,356 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:23,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:23,357 INFO L85 PathProgramCache]: Analyzing trace with hash 188720571, now seen corresponding path program 5 times [2024-11-09 11:15:23,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:23,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777166080] [2024-11-09 11:15:23,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:23,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:23,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:24,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3487 backedges. 1761 proven. 51 refuted. 0 times theorem prover too weak. 1675 trivial. 0 not checked. [2024-11-09 11:15:24,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:24,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777166080] [2024-11-09 11:15:24,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777166080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:24,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243457770] [2024-11-09 11:15:24,632 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 11:15:24,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:24,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:24,634 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) [2024-11-09 11:15:24,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 11:15:24,733 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-09 11:15:24,734 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:24,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 11:15:24,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3487 backedges. 1323 proven. 88 refuted. 0 times theorem prover too weak. 2076 trivial. 0 not checked. [2024-11-09 11:15:24,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:26,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3487 backedges. 1341 proven. 70 refuted. 0 times theorem prover too weak. 2076 trivial. 0 not checked. [2024-11-09 11:15:26,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243457770] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:26,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:26,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 18] total 27 [2024-11-09 11:15:26,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973256057] [2024-11-09 11:15:26,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:26,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 11:15:26,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:26,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 11:15:26,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=596, Unknown=0, NotChecked=0, Total=702 [2024-11-09 11:15:26,242 INFO L87 Difference]: Start difference. First operand 232 states and 252 transitions. Second operand has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 25 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 11:15:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:26,569 INFO L93 Difference]: Finished difference Result 494 states and 544 transitions. [2024-11-09 11:15:26,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 11:15:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 25 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 263 [2024-11-09 11:15:26,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:26,572 INFO L225 Difference]: With dead ends: 494 [2024-11-09 11:15:26,572 INFO L226 Difference]: Without dead ends: 301 [2024-11-09 11:15:26,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 531 SyntacticMatches, 13 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=1234, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 11:15:26,574 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:26,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 11:15:26,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-09 11:15:26,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 290. [2024-11-09 11:15:26,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 270 states have (on average 1.0777777777777777) internal successors, (291), 270 states have internal predecessors, (291), 3 states have call successors, (3), 2 states have call predecessors, (3), 16 states have return successors, (17), 17 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 11:15:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 311 transitions. [2024-11-09 11:15:26,598 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 311 transitions. Word has length 263 [2024-11-09 11:15:26,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:26,598 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 311 transitions. [2024-11-09 11:15:26,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.6666666666666665) internal successors, (72), 25 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 11:15:26,598 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 311 transitions. [2024-11-09 11:15:26,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-09 11:15:26,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:26,603 INFO L215 NwaCegarLoop]: trace histogram [45, 45, 45, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:26,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 11:15:26,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:26,808 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:26,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:26,808 INFO L85 PathProgramCache]: Analyzing trace with hash -714526506, now seen corresponding path program 6 times [2024-11-09 11:15:26,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:26,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21552777] [2024-11-09 11:15:26,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:26,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:27,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:28,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:28,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:28,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4439 backedges. 1956 proven. 90 refuted. 0 times theorem prover too weak. 2393 trivial. 0 not checked. [2024-11-09 11:15:28,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:28,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21552777] [2024-11-09 11:15:28,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21552777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:28,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404771391] [2024-11-09 11:15:28,010 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 11:15:28,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:28,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:28,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:28,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 11:15:28,146 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-09 11:15:28,146 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:28,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 11:15:28,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:28,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4439 backedges. 1413 proven. 120 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2024-11-09 11:15:28,460 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 4439 backedges. 1413 proven. 120 refuted. 0 times theorem prover too weak. 2906 trivial. 0 not checked. [2024-11-09 11:15:29,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404771391] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:29,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:29,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 14, 14] total 47 [2024-11-09 11:15:29,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036788612] [2024-11-09 11:15:29,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:29,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-09 11:15:29,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:29,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-09 11:15:29,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=1887, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 11:15:29,228 INFO L87 Difference]: Start difference. First operand 290 states and 311 transitions. Second operand has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 44 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 11:15:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:30,971 INFO L93 Difference]: Finished difference Result 1226 states and 1397 transitions. [2024-11-09 11:15:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-09 11:15:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 44 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 284 [2024-11-09 11:15:30,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:30,977 INFO L225 Difference]: With dead ends: 1226 [2024-11-09 11:15:30,977 INFO L226 Difference]: Without dead ends: 976 [2024-11-09 11:15:30,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2985 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1477, Invalid=10733, Unknown=0, NotChecked=0, Total=12210 [2024-11-09 11:15:30,982 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:30,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 231 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 11:15:30,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2024-11-09 11:15:31,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 382. [2024-11-09 11:15:31,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 359 states have (on average 1.0807799442896935) internal successors, (388), 359 states have internal predecessors, (388), 3 states have call successors, (3), 2 states have call predecessors, (3), 19 states have return successors, (20), 20 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 11:15:31,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 411 transitions. [2024-11-09 11:15:31,022 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 411 transitions. Word has length 284 [2024-11-09 11:15:31,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:31,022 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 411 transitions. [2024-11-09 11:15:31,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.2127659574468086) internal successors, (104), 44 states have internal predecessors, (104), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 11:15:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 411 transitions. [2024-11-09 11:15:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-09 11:15:31,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:31,033 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 16, 15, 15, 15, 15, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:31,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 11:15:31,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 11:15:31,238 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:31,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:31,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1005785761, now seen corresponding path program 7 times [2024-11-09 11:15:31,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:31,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069285272] [2024-11-09 11:15:31,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:31,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:31,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 11:15:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6736 backedges. 3720 proven. 138 refuted. 0 times theorem prover too weak. 2878 trivial. 0 not checked. [2024-11-09 11:15:32,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:32,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069285272] [2024-11-09 11:15:32,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069285272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:32,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511600588] [2024-11-09 11:15:32,937 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 11:15:32,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:32,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:32,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:32,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 11:15:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:33,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 11:15:33,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 6736 backedges. 3356 proven. 311 refuted. 0 times theorem prover too weak. 3069 trivial. 0 not checked. [2024-11-09 11:15:33,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:38,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6736 backedges. 3356 proven. 311 refuted. 0 times theorem prover too weak. 3069 trivial. 0 not checked. [2024-11-09 11:15:38,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511600588] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:38,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:38,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 33, 33] total 44 [2024-11-09 11:15:38,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220637954] [2024-11-09 11:15:38,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:38,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-09 11:15:38,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:38,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-09 11:15:38,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1691, Unknown=0, NotChecked=0, Total=1892 [2024-11-09 11:15:38,983 INFO L87 Difference]: Start difference. First operand 382 states and 411 transitions. Second operand has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 11:15:40,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:40,150 INFO L93 Difference]: Finished difference Result 791 states and 853 transitions. [2024-11-09 11:15:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-09 11:15:40,151 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 333 [2024-11-09 11:15:40,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:40,153 INFO L225 Difference]: With dead ends: 791 [2024-11-09 11:15:40,154 INFO L226 Difference]: Without dead ends: 523 [2024-11-09 11:15:40,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 644 SyntacticMatches, 31 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3171 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=823, Invalid=6659, Unknown=0, NotChecked=0, Total=7482 [2024-11-09 11:15:40,157 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:40,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 11:15:40,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-09 11:15:40,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 471. [2024-11-09 11:15:40,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 444 states have (on average 1.0698198198198199) internal successors, (475), 444 states have internal predecessors, (475), 3 states have call successors, (3), 2 states have call predecessors, (3), 23 states have return successors, (24), 24 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-09 11:15:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 502 transitions. [2024-11-09 11:15:40,200 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 502 transitions. Word has length 333 [2024-11-09 11:15:40,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:40,200 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 502 transitions. [2024-11-09 11:15:40,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.4318181818181817) internal successors, (107), 37 states have internal predecessors, (107), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-09 11:15:40,201 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 502 transitions. [2024-11-09 11:15:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2024-11-09 11:15:40,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:40,204 INFO L215 NwaCegarLoop]: trace histogram [63, 63, 63, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:40,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 11:15:40,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 11:15:40,409 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:40,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1931297766, now seen corresponding path program 8 times [2024-11-09 11:15:40,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:40,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357704848] [2024-11-09 11:15:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:40,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:40,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:41,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:41,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 7562 backedges. 4322 proven. 195 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-09 11:15:42,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:42,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357704848] [2024-11-09 11:15:42,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357704848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:42,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145393728] [2024-11-09 11:15:42,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:15:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:42,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:42,194 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:42,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 11:15:42,438 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:15:42,438 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:42,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 11:15:42,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 7562 backedges. 4381 proven. 499 refuted. 0 times theorem prover too weak. 2682 trivial. 0 not checked. [2024-11-09 11:15:42,947 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:49,405 INFO L134 CoverageAnalysis]: Checked inductivity of 7562 backedges. 4381 proven. 499 refuted. 0 times theorem prover too weak. 2682 trivial. 0 not checked. [2024-11-09 11:15:49,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145393728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:49,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:49,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 38, 38] total 51 [2024-11-09 11:15:49,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912843062] [2024-11-09 11:15:49,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:49,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-09 11:15:49,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:49,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-09 11:15:49,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=2293, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 11:15:49,409 INFO L87 Difference]: Start difference. First operand 471 states and 502 transitions. Second operand has 51 states, 51 states have (on average 2.372549019607843) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-09 11:15:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:50,873 INFO L93 Difference]: Finished difference Result 962 states and 1025 transitions. [2024-11-09 11:15:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2024-11-09 11:15:50,873 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.372549019607843) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 338 [2024-11-09 11:15:50,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:50,877 INFO L225 Difference]: With dead ends: 962 [2024-11-09 11:15:50,877 INFO L226 Difference]: Without dead ends: 670 [2024-11-09 11:15:50,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 646 SyntacticMatches, 36 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4944 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1249, Invalid=10523, Unknown=0, NotChecked=0, Total=11772 [2024-11-09 11:15:50,883 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:50,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 11:15:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-09 11:15:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 590. [2024-11-09 11:15:50,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 558 states have (on average 1.060931899641577) internal successors, (592), 558 states have internal predecessors, (592), 3 states have call successors, (3), 2 states have call predecessors, (3), 28 states have return successors, (29), 29 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 11:15:50,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 624 transitions. [2024-11-09 11:15:50,951 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 624 transitions. Word has length 338 [2024-11-09 11:15:50,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:50,952 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 624 transitions. [2024-11-09 11:15:50,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.372549019607843) internal successors, (121), 43 states have internal predecessors, (121), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-09 11:15:50,952 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 624 transitions. [2024-11-09 11:15:50,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-09 11:15:50,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:50,956 INFO L215 NwaCegarLoop]: trace histogram [67, 67, 67, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:50,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 11:15:51,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 11:15:51,156 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:51,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:51,157 INFO L85 PathProgramCache]: Analyzing trace with hash -264518770, now seen corresponding path program 9 times [2024-11-09 11:15:51,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:51,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903015872] [2024-11-09 11:15:51,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:51,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:51,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:15:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:52,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:52,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:53,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 8388 backedges. 4863 proven. 261 refuted. 0 times theorem prover too weak. 3264 trivial. 0 not checked. [2024-11-09 11:15:53,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:53,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903015872] [2024-11-09 11:15:53,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903015872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:53,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375968789] [2024-11-09 11:15:53,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:15:53,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:53,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:53,133 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:53,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 11:15:53,432 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-09 11:15:53,432 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:53,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 11:15:53,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:15:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 8388 backedges. 1768 proven. 117 refuted. 0 times theorem prover too weak. 6503 trivial. 0 not checked. [2024-11-09 11:15:53,889 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:15:54,804 INFO L134 CoverageAnalysis]: Checked inductivity of 8388 backedges. 1768 proven. 117 refuted. 0 times theorem prover too weak. 6503 trivial. 0 not checked. [2024-11-09 11:15:54,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375968789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:15:54,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:15:54,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 21, 21] total 73 [2024-11-09 11:15:54,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985629225] [2024-11-09 11:15:54,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:15:54,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2024-11-09 11:15:54,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:15:54,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2024-11-09 11:15:54,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=728, Invalid=4528, Unknown=0, NotChecked=0, Total=5256 [2024-11-09 11:15:54,809 INFO L87 Difference]: Start difference. First operand 590 states and 624 transitions. Second operand has 73 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 72 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 11:15:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:15:56,609 INFO L93 Difference]: Finished difference Result 1668 states and 1882 transitions. [2024-11-09 11:15:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-09 11:15:56,610 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 72 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 350 [2024-11-09 11:15:56,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:15:56,615 INFO L225 Difference]: With dead ends: 1668 [2024-11-09 11:15:56,615 INFO L226 Difference]: Without dead ends: 1348 [2024-11-09 11:15:56,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3827 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1943, Invalid=13557, Unknown=0, NotChecked=0, Total=15500 [2024-11-09 11:15:56,622 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 11:15:56,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 167 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 11:15:56,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2024-11-09 11:15:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 805. [2024-11-09 11:15:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 767 states have (on average 1.0625814863102998) internal successors, (815), 767 states have internal predecessors, (815), 3 states have call successors, (3), 2 states have call predecessors, (3), 34 states have return successors, (35), 35 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-09 11:15:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 853 transitions. [2024-11-09 11:15:56,747 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 853 transitions. Word has length 350 [2024-11-09 11:15:56,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:15:56,747 INFO L471 AbstractCegarLoop]: Abstraction has 805 states and 853 transitions. [2024-11-09 11:15:56,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 1.8630136986301369) internal successors, (136), 72 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 11:15:56,747 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 853 transitions. [2024-11-09 11:15:56,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-09 11:15:56,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:15:56,751 INFO L215 NwaCegarLoop]: trace histogram [80, 80, 80, 16, 15, 15, 15, 15, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:15:56,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 11:15:56,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 11:15:56,952 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:15:56,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:15:56,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1263462439, now seen corresponding path program 10 times [2024-11-09 11:15:56,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:15:56,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983432886] [2024-11-09 11:15:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:15:56,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:15:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:57,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-09 11:15:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:15:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:15:58,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11543 backedges. 6995 proven. 336 refuted. 0 times theorem prover too weak. 4212 trivial. 0 not checked. [2024-11-09 11:15:58,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:15:58,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983432886] [2024-11-09 11:15:58,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983432886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:15:58,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210742967] [2024-11-09 11:15:58,978 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 11:15:58,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:15:58,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:15:58,980 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:15:58,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 11:15:59,287 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 11:15:59,287 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:15:59,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 11:15:59,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:16:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 11543 backedges. 7605 proven. 1073 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2024-11-09 11:16:00,039 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:16:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11543 backedges. 7605 proven. 1073 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2024-11-09 11:16:09,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210742967] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:16:09,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:16:09,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 48, 48] total 65 [2024-11-09 11:16:09,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666153830] [2024-11-09 11:16:09,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:16:09,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-09 11:16:09,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:16:09,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-09 11:16:09,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=3770, Unknown=0, NotChecked=0, Total=4160 [2024-11-09 11:16:09,359 INFO L87 Difference]: Start difference. First operand 805 states and 853 transitions. Second operand has 65 states, 65 states have (on average 2.292307692307692) internal successors, (149), 55 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 11:16:12,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:16:12,019 INFO L93 Difference]: Finished difference Result 1556 states and 1644 transitions. [2024-11-09 11:16:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2024-11-09 11:16:12,019 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.292307692307692) internal successors, (149), 55 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) Word has length 399 [2024-11-09 11:16:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:16:12,025 INFO L225 Difference]: With dead ends: 1556 [2024-11-09 11:16:12,025 INFO L226 Difference]: Without dead ends: 1156 [2024-11-09 11:16:12,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 955 GetRequests, 752 SyntacticMatches, 46 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10354 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2540, Invalid=22582, Unknown=0, NotChecked=0, Total=25122 [2024-11-09 11:16:12,031 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 3326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:16:12,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 3326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 11:16:12,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2024-11-09 11:16:12,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1002. [2024-11-09 11:16:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 957 states have (on average 1.0553814002089865) internal successors, (1010), 957 states have internal predecessors, (1010), 3 states have call successors, (3), 2 states have call predecessors, (3), 41 states have return successors, (42), 42 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-09 11:16:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1055 transitions. [2024-11-09 11:16:12,164 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1055 transitions. Word has length 399 [2024-11-09 11:16:12,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:16:12,165 INFO L471 AbstractCegarLoop]: Abstraction has 1002 states and 1055 transitions. [2024-11-09 11:16:12,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.292307692307692) internal successors, (149), 55 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 11:16:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1055 transitions. [2024-11-09 11:16:12,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-09 11:16:12,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:16:12,170 INFO L215 NwaCegarLoop]: trace histogram [82, 82, 82, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:16:12,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 11:16:12,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 11:16:12,371 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:16:12,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:16:12,371 INFO L85 PathProgramCache]: Analyzing trace with hash -24504735, now seen corresponding path program 11 times [2024-11-09 11:16:12,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:16:12,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205077251] [2024-11-09 11:16:12,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:16:12,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:16:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:12,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:16:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:13,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:14,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:14,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:14,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:14,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:14,016 INFO L134 CoverageAnalysis]: Checked inductivity of 11913 backedges. 6823 proven. 420 refuted. 0 times theorem prover too weak. 4670 trivial. 0 not checked. [2024-11-09 11:16:14,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:16:14,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205077251] [2024-11-09 11:16:14,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205077251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:16:14,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097850234] [2024-11-09 11:16:14,016 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 11:16:14,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:16:14,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:16:14,017 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:16:14,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 11:16:14,434 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2024-11-09 11:16:14,434 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:16:14,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 11:16:14,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:16:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 11913 backedges. 8269 proven. 1615 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked. [2024-11-09 11:16:15,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:16:21,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11913 backedges. 8455 proven. 1429 refuted. 0 times theorem prover too weak. 2029 trivial. 0 not checked. [2024-11-09 11:16:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097850234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:16:21,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:16:21,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 48, 48] total 69 [2024-11-09 11:16:21,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637747313] [2024-11-09 11:16:21,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:16:21,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-09 11:16:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:16:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-09 11:16:21,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=4229, Unknown=0, NotChecked=0, Total=4692 [2024-11-09 11:16:21,668 INFO L87 Difference]: Start difference. First operand 1002 states and 1055 transitions. Second operand has 69 states, 69 states have (on average 2.260869565217391) internal successors, (156), 61 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-09 11:16:24,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:16:24,976 INFO L93 Difference]: Finished difference Result 1874 states and 1967 transitions. [2024-11-09 11:16:24,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2024-11-09 11:16:24,976 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 2.260869565217391) internal successors, (156), 61 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 395 [2024-11-09 11:16:24,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:16:24,982 INFO L225 Difference]: With dead ends: 1874 [2024-11-09 11:16:24,982 INFO L226 Difference]: Without dead ends: 1450 [2024-11-09 11:16:24,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 964 GetRequests, 746 SyntacticMatches, 43 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11555 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3488, Invalid=27664, Unknown=0, NotChecked=0, Total=31152 [2024-11-09 11:16:24,988 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 4029 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 4043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 4029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 11:16:24,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 515 Invalid, 4043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 4029 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 11:16:24,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-11-09 11:16:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1250. [2024-11-09 11:16:25,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1197 states have (on average 1.050125313283208) internal successors, (1257), 1197 states have internal predecessors, (1257), 3 states have call successors, (3), 2 states have call predecessors, (3), 49 states have return successors, (50), 50 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-09 11:16:25,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1310 transitions. [2024-11-09 11:16:25,194 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1310 transitions. Word has length 395 [2024-11-09 11:16:25,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:16:25,195 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1310 transitions. [2024-11-09 11:16:25,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.260869565217391) internal successors, (156), 61 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-09 11:16:25,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1310 transitions. [2024-11-09 11:16:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-09 11:16:25,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:16:25,201 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1] [2024-11-09 11:16:25,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 11:16:25,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:16:25,401 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:16:25,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:16:25,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1830676325, now seen corresponding path program 12 times [2024-11-09 11:16:25,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:16:25,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803998160] [2024-11-09 11:16:25,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:16:25,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:16:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:26,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 11:16:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:26,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:27,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:27,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:27,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 11:16:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:16:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 12434 backedges. 9020 proven. 1914 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2024-11-09 11:16:28,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:16:28,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803998160] [2024-11-09 11:16:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803998160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:16:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322893983] [2024-11-09 11:16:28,794 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 11:16:28,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:16:28,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:16:28,795 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:16:28,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 11:16:29,280 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-09 11:16:29,280 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:16:29,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 11:16:29,287 INFO L278 TraceCheckSpWp]: Computing forward predicates...