./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 603eeec29f0f7a499f451ec7fa1906f0a8c90a729e0fc96740e12a91ea711946 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:23:20,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:23:20,692 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:23:20,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:23:20,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:23:20,729 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:23:20,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:23:20,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:23:20,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:23:20,732 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:23:20,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:23:20,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:23:20,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:23:20,736 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:23:20,737 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:23:20,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:23:20,737 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:23:20,738 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:23:20,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:23:20,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:23:20,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:23:20,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:23:20,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:23:20,740 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:23:20,740 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:23:20,740 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:23:20,741 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:23:20,741 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:23:20,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:23:20,741 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:23:20,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:23:20,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:23:20,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:23:20,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:23:20,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:23:20,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:23:20,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:23:20,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:23:20,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:23:20,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:23:20,750 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:23:20,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:23:20,751 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:23:20,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:23:20,752 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 603eeec29f0f7a499f451ec7fa1906f0a8c90a729e0fc96740e12a91ea711946 [2024-10-24 20:23:21,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:23:21,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:23:21,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:23:21,047 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:23:21,048 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:23:21,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c [2024-10-24 20:23:22,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:23:22,648 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:23:22,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound2.c [2024-10-24 20:23:22,655 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/168cad151/c740bfcbd7bf48df852b0a9a19bfb639/FLAGaa936602b [2024-10-24 20:23:22,668 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/168cad151/c740bfcbd7bf48df852b0a9a19bfb639 [2024-10-24 20:23:22,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:23:22,673 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:23:22,675 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:23:22,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:23:22,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:23:22,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:22,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181ea2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22, skipping insertion in model container [2024-10-24 20:23:22,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:22,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:23:22,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:23:22,906 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:23:22,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:23:22,939 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:23:22,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22 WrapperNode [2024-10-24 20:23:22,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:23:22,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:23:22,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:23:22,941 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:23:22,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:22,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:22,972 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2024-10-24 20:23:22,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:23:22,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:23:22,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:23:22,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:23:22,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:22,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:22,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:22,999 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 20:23:22,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:23,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:23,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:23,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:23,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:23,008 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:23,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:23:23,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:23:23,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:23:23,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:23:23,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (1/1) ... [2024-10-24 20:23:23,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:23:23,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:23,044 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) [2024-10-24 20:23:23,046 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 [2024-10-24 20:23:23,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:23:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:23:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:23:23,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:23:23,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:23:23,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:23:23,140 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:23:23,142 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:23:23,378 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-24 20:23:23,378 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:23:23,429 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:23:23,430 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 20:23:23,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:23 BoogieIcfgContainer [2024-10-24 20:23:23,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:23:23,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:23:23,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:23:23,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:23:23,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:23:22" (1/3) ... [2024-10-24 20:23:23,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bcc4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:23:23, skipping insertion in model container [2024-10-24 20:23:23,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:22" (2/3) ... [2024-10-24 20:23:23,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bcc4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:23:23, skipping insertion in model container [2024-10-24 20:23:23,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:23" (3/3) ... [2024-10-24 20:23:23,444 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound2.c [2024-10-24 20:23:23,462 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:23:23,462 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 20:23:23,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:23:23,518 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;@7b6dfd92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:23:23,518 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 20:23:23,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-24 20:23:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-24 20:23:23,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:23,528 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 20:23:23,529 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:23,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:23,533 INFO L85 PathProgramCache]: Analyzing trace with hash 118368741, now seen corresponding path program 1 times [2024-10-24 20:23:23,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:23,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3707331] [2024-10-24 20:23:23,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:23:23,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:23,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3707331] [2024-10-24 20:23:23,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3707331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:23,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:23,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:23,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841623771] [2024-10-24 20:23:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:23,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:23:23,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:23:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:23:23,714 INFO L87 Difference]: Start difference. First operand has 31 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:23,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:23,744 INFO L93 Difference]: Finished difference Result 60 states and 94 transitions. [2024-10-24 20:23:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:23:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-24 20:23:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:23,752 INFO L225 Difference]: With dead ends: 60 [2024-10-24 20:23:23,753 INFO L226 Difference]: Without dead ends: 27 [2024-10-24 20:23:23,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:23:23,759 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:23,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:23,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-24 20:23:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-24 20:23:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 20:23:23,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-10-24 20:23:23,792 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 5 [2024-10-24 20:23:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:23,792 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-10-24 20:23:23,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:23,793 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-10-24 20:23:23,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-24 20:23:23,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:23,793 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 20:23:23,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:23:23,794 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:23,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:23,795 INFO L85 PathProgramCache]: Analyzing trace with hash 118428323, now seen corresponding path program 1 times [2024-10-24 20:23:23,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:23,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301503874] [2024-10-24 20:23:23,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:23,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:23,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:23:23,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:23,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301503874] [2024-10-24 20:23:23,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301503874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:23,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:23,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:23,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645778955] [2024-10-24 20:23:23,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:23,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:23:23,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:23,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:23:23,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:23:23,931 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:23,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:23,991 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-10-24 20:23:23,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:23:23,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-24 20:23:23,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:23,993 INFO L225 Difference]: With dead ends: 47 [2024-10-24 20:23:23,993 INFO L226 Difference]: Without dead ends: 31 [2024-10-24 20:23:23,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:23:23,995 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 4 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:23,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 81 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:23,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-24 20:23:24,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-10-24 20:23:24,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 24 states have internal predecessors, (28), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 20:23:24,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-10-24 20:23:24,008 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 5 [2024-10-24 20:23:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:24,009 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-10-24 20:23:24,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-10-24 20:23:24,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 20:23:24,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:24,012 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:24,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 20:23:24,013 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:24,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:24,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1994096058, now seen corresponding path program 1 times [2024-10-24 20:23:24,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:24,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590070338] [2024-10-24 20:23:24,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:24,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:24,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:24,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590070338] [2024-10-24 20:23:24,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590070338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:24,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:24,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:23:24,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416405583] [2024-10-24 20:23:24,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:24,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:23:24,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:24,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:23:24,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:23:24,288 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:24,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:24,413 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-10-24 20:23:24,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:23:24,414 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-24 20:23:24,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:24,415 INFO L225 Difference]: With dead ends: 54 [2024-10-24 20:23:24,416 INFO L226 Difference]: Without dead ends: 53 [2024-10-24 20:23:24,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:24,418 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 26 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:24,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 113 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:24,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-24 20:23:24,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2024-10-24 20:23:24,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 34 states have internal predecessors, (41), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:24,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2024-10-24 20:23:24,438 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 25 [2024-10-24 20:23:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:24,438 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2024-10-24 20:23:24,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2024-10-24 20:23:24,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 20:23:24,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:24,441 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:24,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:23:24,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:24,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:24,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1994094904, now seen corresponding path program 1 times [2024-10-24 20:23:24,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:24,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557179397] [2024-10-24 20:23:24,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:24,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:24,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:24,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557179397] [2024-10-24 20:23:24,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557179397] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:24,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128585356] [2024-10-24 20:23:24,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:24,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:24,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:24,629 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) [2024-10-24 20:23:24,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:23:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:24,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:24,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:24,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:24,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128585356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:24,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:24,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-24 20:23:24,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204333993] [2024-10-24 20:23:24,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:24,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:23:24,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:24,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:23:24,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:24,794 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:24,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:24,862 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2024-10-24 20:23:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:23:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-24 20:23:24,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:24,863 INFO L225 Difference]: With dead ends: 63 [2024-10-24 20:23:24,864 INFO L226 Difference]: Without dead ends: 62 [2024-10-24 20:23:24,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:23:24,865 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:24,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 80 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:24,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-24 20:23:24,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2024-10-24 20:23:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 39 states have internal predecessors, (46), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2024-10-24 20:23:24,874 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 25 [2024-10-24 20:23:24,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:24,875 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2024-10-24 20:23:24,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:24,875 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2024-10-24 20:23:24,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 20:23:24,876 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:24,876 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:24,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:25,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:25,081 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:25,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:25,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1687435582, now seen corresponding path program 1 times [2024-10-24 20:23:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:25,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756916118] [2024-10-24 20:23:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:25,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,226 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:25,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:25,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756916118] [2024-10-24 20:23:25,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756916118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:25,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:25,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:23:25,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158321300] [2024-10-24 20:23:25,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:25,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:23:25,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:25,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:23:25,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:23:25,231 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:25,309 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2024-10-24 20:23:25,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:23:25,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-10-24 20:23:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:25,310 INFO L225 Difference]: With dead ends: 63 [2024-10-24 20:23:25,310 INFO L226 Difference]: Without dead ends: 62 [2024-10-24 20:23:25,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:25,311 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:25,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 110 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:25,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-24 20:23:25,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2024-10-24 20:23:25,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 40 states have (on average 1.225) internal successors, (49), 42 states have internal predecessors, (49), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:25,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2024-10-24 20:23:25,320 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 26 [2024-10-24 20:23:25,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:25,320 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2024-10-24 20:23:25,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:25,321 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2024-10-24 20:23:25,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 20:23:25,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:25,323 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:25,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 20:23:25,323 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:25,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:25,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1687399832, now seen corresponding path program 1 times [2024-10-24 20:23:25,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:25,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16870598] [2024-10-24 20:23:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,455 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:25,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:25,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16870598] [2024-10-24 20:23:25,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16870598] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:25,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492360192] [2024-10-24 20:23:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:25,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:25,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:25,459 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) [2024-10-24 20:23:25,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:23:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:25,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:25,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:25,583 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:25,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492360192] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:25,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:25,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 12 [2024-10-24 20:23:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052525028] [2024-10-24 20:23:25,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:25,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:23:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:23:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:23:25,669 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 20:23:25,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:25,851 INFO L93 Difference]: Finished difference Result 109 states and 133 transitions. [2024-10-24 20:23:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:23:25,852 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 26 [2024-10-24 20:23:25,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:25,853 INFO L225 Difference]: With dead ends: 109 [2024-10-24 20:23:25,854 INFO L226 Difference]: Without dead ends: 94 [2024-10-24 20:23:25,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:23:25,856 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 66 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:25,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 161 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:25,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-10-24 20:23:25,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2024-10-24 20:23:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 61 states have internal predecessors, (71), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 20:23:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 103 transitions. [2024-10-24 20:23:25,871 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 103 transitions. Word has length 26 [2024-10-24 20:23:25,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:25,871 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 103 transitions. [2024-10-24 20:23:25,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 13 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 20:23:25,871 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 103 transitions. [2024-10-24 20:23:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-24 20:23:25,875 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:25,876 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:25,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:23:26,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 20:23:26,081 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:26,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:26,081 INFO L85 PathProgramCache]: Analyzing trace with hash -339875692, now seen corresponding path program 1 times [2024-10-24 20:23:26,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:26,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977856854] [2024-10-24 20:23:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:26,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:26,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,265 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:23:26,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:26,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977856854] [2024-10-24 20:23:26,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977856854] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:26,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865734262] [2024-10-24 20:23:26,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:26,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:26,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:26,269 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) [2024-10-24 20:23:26,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:23:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:26,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:26,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:23:26,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:26,558 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:23:26,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865734262] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:26,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:26,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 16 [2024-10-24 20:23:26,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10805760] [2024-10-24 20:23:26,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:26,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 20:23:26,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:26,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 20:23:26,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:23:26,563 INFO L87 Difference]: Start difference. First operand 84 states and 103 transitions. Second operand has 17 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 20:23:26,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:26,880 INFO L93 Difference]: Finished difference Result 138 states and 169 transitions. [2024-10-24 20:23:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 20:23:26,881 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 42 [2024-10-24 20:23:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:26,883 INFO L225 Difference]: With dead ends: 138 [2024-10-24 20:23:26,883 INFO L226 Difference]: Without dead ends: 137 [2024-10-24 20:23:26,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=188, Invalid=568, Unknown=0, NotChecked=0, Total=756 [2024-10-24 20:23:26,886 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:26,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 201 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:26,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-10-24 20:23:26,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-10-24 20:23:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 98 states have (on average 1.183673469387755) internal successors, (116), 100 states have internal predecessors, (116), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 20:23:26,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 164 transitions. [2024-10-24 20:23:26,906 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 164 transitions. Word has length 42 [2024-10-24 20:23:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:26,907 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 164 transitions. [2024-10-24 20:23:26,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 17 states have internal predecessors, (50), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-10-24 20:23:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 164 transitions. [2024-10-24 20:23:26,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-24 20:23:26,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:26,908 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:26,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:27,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:27,113 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:27,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:27,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1343451627, now seen corresponding path program 1 times [2024-10-24 20:23:27,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:27,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055480985] [2024-10-24 20:23:27,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:27,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,271 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:23:27,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:27,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055480985] [2024-10-24 20:23:27,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055480985] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:27,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776839680] [2024-10-24 20:23:27,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:27,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:27,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:27,274 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) [2024-10-24 20:23:27,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:23:27,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:27,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:27,399 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:23:27,399 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:27,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776839680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:27,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:27,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2024-10-24 20:23:27,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086005868] [2024-10-24 20:23:27,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:27,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 20:23:27,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:27,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 20:23:27,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:23:27,401 INFO L87 Difference]: Start difference. First operand 135 states and 164 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:27,514 INFO L93 Difference]: Finished difference Result 141 states and 170 transitions. [2024-10-24 20:23:27,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 20:23:27,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2024-10-24 20:23:27,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:27,515 INFO L225 Difference]: With dead ends: 141 [2024-10-24 20:23:27,515 INFO L226 Difference]: Without dead ends: 111 [2024-10-24 20:23:27,516 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:23:27,516 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:27,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 154 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:27,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-24 20:23:27,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2024-10-24 20:23:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 80 states have (on average 1.1375) internal successors, (91), 81 states have internal predecessors, (91), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 20:23:27,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 131 transitions. [2024-10-24 20:23:27,529 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 131 transitions. Word has length 45 [2024-10-24 20:23:27,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:27,529 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 131 transitions. [2024-10-24 20:23:27,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:23:27,530 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 131 transitions. [2024-10-24 20:23:27,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 20:23:27,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:27,531 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:27,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 20:23:27,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:27,732 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:27,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:27,732 INFO L85 PathProgramCache]: Analyzing trace with hash -597482282, now seen corresponding path program 1 times [2024-10-24 20:23:27,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:27,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107857768] [2024-10-24 20:23:27,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:27,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:23:27,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:27,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107857768] [2024-10-24 20:23:27,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107857768] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:27,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207608207] [2024-10-24 20:23:27,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:27,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:27,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:27,943 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) [2024-10-24 20:23:27,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 20:23:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:27,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:23:27,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:23:28,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:23:28,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207608207] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:28,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:28,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 20 [2024-10-24 20:23:28,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822995229] [2024-10-24 20:23:28,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:28,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 20:23:28,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 20:23:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:23:28,220 INFO L87 Difference]: Start difference. First operand 110 states and 131 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 20:23:28,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:28,620 INFO L93 Difference]: Finished difference Result 161 states and 194 transitions. [2024-10-24 20:23:28,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 20:23:28,621 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 50 [2024-10-24 20:23:28,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:28,622 INFO L225 Difference]: With dead ends: 161 [2024-10-24 20:23:28,622 INFO L226 Difference]: Without dead ends: 147 [2024-10-24 20:23:28,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=356, Invalid=1126, Unknown=0, NotChecked=0, Total=1482 [2024-10-24 20:23:28,623 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 113 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:28,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 193 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:23:28,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-24 20:23:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 143. [2024-10-24 20:23:28,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 101 states have (on average 1.0891089108910892) internal successors, (110), 102 states have internal predecessors, (110), 29 states have call successors, (29), 11 states have call predecessors, (29), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-24 20:23:28,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2024-10-24 20:23:28,646 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 50 [2024-10-24 20:23:28,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:28,647 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2024-10-24 20:23:28,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 21 states have internal predecessors, (56), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 20:23:28,647 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2024-10-24 20:23:28,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 20:23:28,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:28,649 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:28,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 20:23:28,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:28,854 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:28,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:28,855 INFO L85 PathProgramCache]: Analyzing trace with hash -73861622, now seen corresponding path program 2 times [2024-10-24 20:23:28,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:28,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074759709] [2024-10-24 20:23:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:28,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:23:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-24 20:23:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:23:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:23:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:28,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-24 20:23:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 20:23:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 38 proven. 8 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-10-24 20:23:29,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:29,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074759709] [2024-10-24 20:23:29,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074759709] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:29,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074431393] [2024-10-24 20:23:29,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:29,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:29,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:29,008 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) [2024-10-24 20:23:29,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 20:23:29,077 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:23:29,077 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:29,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:29,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:29,206 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 181 proven. 1 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-10-24 20:23:29,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-10-24 20:23:29,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074431393] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:29,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:29,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 13 [2024-10-24 20:23:29,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187613517] [2024-10-24 20:23:29,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:29,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:23:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:29,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:23:29,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:23:29,322 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 6 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-10-24 20:23:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:29,486 INFO L93 Difference]: Finished difference Result 144 states and 168 transitions. [2024-10-24 20:23:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:23:29,486 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 6 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 90 [2024-10-24 20:23:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:29,488 INFO L225 Difference]: With dead ends: 144 [2024-10-24 20:23:29,488 INFO L226 Difference]: Without dead ends: 92 [2024-10-24 20:23:29,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 191 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:23:29,489 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 40 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:29,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 140 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-24 20:23:29,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-10-24 20:23:29,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.0483870967741935) internal successors, (65), 63 states have internal predecessors, (65), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-24 20:23:29,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 107 transitions. [2024-10-24 20:23:29,501 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 107 transitions. Word has length 90 [2024-10-24 20:23:29,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:29,502 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 107 transitions. [2024-10-24 20:23:29,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 6 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-10-24 20:23:29,503 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 107 transitions. [2024-10-24 20:23:29,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 20:23:29,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:29,509 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2024-10-24 20:23:29,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:29,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:29,710 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 20:23:29,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:29,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1254225999, now seen corresponding path program 2 times [2024-10-24 20:23:29,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:29,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876244547] [2024-10-24 20:23:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:29,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:23:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:23:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-24 20:23:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 20:23:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-24 20:23:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:23:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-24 20:23:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:23:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 20:23:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-24 20:23:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-24 20:23:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:23:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 20:23:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-24 20:23:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-24 20:23:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-24 20:23:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 20:23:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 70 proven. 8 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-10-24 20:23:29,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:29,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876244547] [2024-10-24 20:23:29,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876244547] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:29,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161288383] [2024-10-24 20:23:29,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:23:29,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:29,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:29,914 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) [2024-10-24 20:23:29,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 20:23:29,992 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:23:29,992 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:23:29,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:23:29,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 415 proven. 2 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-10-24 20:23:30,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2024-10-24 20:23:30,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161288383] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:30,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:30,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 13 [2024-10-24 20:23:30,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481377105] [2024-10-24 20:23:30,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:30,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:23:30,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:30,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:23:30,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:23:30,246 INFO L87 Difference]: Start difference. First operand 92 states and 107 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-10-24 20:23:30,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:30,388 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2024-10-24 20:23:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:23:30,389 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 126 [2024-10-24 20:23:30,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:30,389 INFO L225 Difference]: With dead ends: 92 [2024-10-24 20:23:30,389 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 20:23:30,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 276 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2024-10-24 20:23:30,391 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:30,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 126 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:30,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 20:23:30,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 20:23:30,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 20:23:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 20:23:30,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 126 [2024-10-24 20:23:30,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:30,392 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 20:23:30,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 6 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2024-10-24 20:23:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 20:23:30,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 20:23:30,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-24 20:23:30,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-24 20:23:30,408 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-24 20:23:30,408 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-24 20:23:30,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:30,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:30,611 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:30,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 20:23:30,686 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 20:23:30,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:23:30 BoogieIcfgContainer [2024-10-24 20:23:30,707 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 20:23:30,708 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 20:23:30,708 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 20:23:30,708 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 20:23:30,709 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:23" (3/4) ... [2024-10-24 20:23:30,710 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 20:23:30,716 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-24 20:23:30,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-24 20:23:30,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-24 20:23:30,721 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 20:23:30,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 20:23:30,816 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 20:23:30,816 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 20:23:30,816 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 20:23:30,817 INFO L158 Benchmark]: Toolchain (without parser) took 8143.84ms. Allocated memory was 169.9MB in the beginning and 232.8MB in the end (delta: 62.9MB). Free memory was 99.8MB in the beginning and 189.0MB in the end (delta: -89.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:23:30,817 INFO L158 Benchmark]: CDTParser took 1.20ms. Allocated memory is still 169.9MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:23:30,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.81ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 87.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 20:23:30,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.95ms. Allocated memory is still 169.9MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 20:23:30,818 INFO L158 Benchmark]: Boogie Preprocessor took 37.00ms. Allocated memory is still 169.9MB. Free memory was 85.5MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 20:23:30,818 INFO L158 Benchmark]: RCFGBuilder took 415.00ms. Allocated memory is still 169.9MB. Free memory was 83.8MB in the beginning and 137.5MB in the end (delta: -53.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-10-24 20:23:30,819 INFO L158 Benchmark]: TraceAbstraction took 7274.90ms. Allocated memory was 169.9MB in the beginning and 232.8MB in the end (delta: 62.9MB). Free memory was 137.1MB in the beginning and 193.2MB in the end (delta: -56.1MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB. [2024-10-24 20:23:30,819 INFO L158 Benchmark]: Witness Printer took 108.57ms. Allocated memory is still 232.8MB. Free memory was 193.2MB in the beginning and 189.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 20:23:30,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20ms. Allocated memory is still 169.9MB. Free memory is still 126.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.81ms. Allocated memory is still 169.9MB. Free memory was 99.6MB in the beginning and 87.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.95ms. Allocated memory is still 169.9MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.00ms. Allocated memory is still 169.9MB. Free memory was 85.5MB in the beginning and 83.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 415.00ms. Allocated memory is still 169.9MB. Free memory was 83.8MB in the beginning and 137.5MB in the end (delta: -53.6MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7274.90ms. Allocated memory was 169.9MB in the beginning and 232.8MB in the end (delta: 62.9MB). Free memory was 137.1MB in the beginning and 193.2MB in the end (delta: -56.1MB). Peak memory consumption was 130.7MB. Max. memory is 16.1GB. * Witness Printer took 108.57ms. Allocated memory is still 232.8MB. Free memory was 193.2MB in the beginning and 189.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 11, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 379 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 379 mSDsluCounter, 1398 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1104 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 844 IncrementalHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 294 mSDtfsCounter, 844 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 967 GetRequests, 797 SyntacticMatches, 10 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 758 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=9, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 36 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 869 NumberOfCodeBlocks, 869 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1180 ConstructedInterpolants, 0 QuantifiedInterpolants, 2264 SizeOfPredicates, 33 NumberOfNonLiveVariables, 980 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 23 InterpolantComputations, 6 PerfectInterpolantSequences, 3526/3680 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((counter == 0) || (counter == 1)) || (counter == 2)) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: (((2 <= counter) && (counter <= 2147483646)) || (counter == 1)) - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) RESULT: Ultimate proved your program to be correct! [2024-10-24 20:23:30,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE