./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/sum_20x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/sum_20x0-2.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 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:50:04,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:50:04,655 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:50:04,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:50:04,661 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:50:04,680 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:50:04,680 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:50:04,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:50:04,681 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:50:04,681 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:50:04,681 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:50:04,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:50:04,682 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:50:04,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:50:04,685 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:50:04,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:50:04,686 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:50:04,686 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:50:04,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:50:04,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:50:04,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:50:04,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:50:04,688 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:50:04,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:50:04,688 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:50:04,688 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:50:04,688 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:50:04,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:50:04,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:50:04,689 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:50:04,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:50:04,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:50:04,689 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:50:04,689 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:50:04,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:50:04,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:50:04,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:50:04,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:50:04,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:50:04,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:50:04,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:50:04,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:50:04,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:50:04,692 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:50:04,692 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2467b918f90fe26ead39772ec36304202be3f16a6c04dfdd5844d39d05599b5a [2024-11-12 17:50:04,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:50:04,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:50:04,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:50:04,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:50:04,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:50:04,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2024-11-12 17:50:06,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:50:06,246 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:50:06,247 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2024-11-12 17:50:06,252 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38be92ab5/a1b9b983958145418702988eec8c5604/FLAGf088c06ce [2024-11-12 17:50:06,262 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38be92ab5/a1b9b983958145418702988eec8c5604 [2024-11-12 17:50:06,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:50:06,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:50:06,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:50:06,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:50:06,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:50:06,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfd7fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06, skipping insertion in model container [2024-11-12 17:50:06,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,284 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:50:06,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:50:06,424 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:50:06,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:50:06,447 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:50:06,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06 WrapperNode [2024-11-12 17:50:06,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:50:06,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:50:06,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:50:06,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:50:06,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,470 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2024-11-12 17:50:06,470 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:50:06,471 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:50:06,471 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:50:06,471 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:50:06,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,486 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 17:50:06,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:50:06,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:50:06,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:50:06,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:50:06,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (1/1) ... [2024-11-12 17:50:06,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:50:06,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:06,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 17:50:06,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 17:50:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:50:06,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:50:06,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:50:06,549 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2024-11-12 17:50:06,549 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2024-11-12 17:50:06,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:50:06,598 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:50:06,599 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:50:06,687 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-12 17:50:06,688 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:50:06,701 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:50:06,701 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 17:50:06,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:50:06 BoogieIcfgContainer [2024-11-12 17:50:06,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:50:06,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:50:06,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:50:06,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:50:06,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:50:06" (1/3) ... [2024-11-12 17:50:06,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c8c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:50:06, skipping insertion in model container [2024-11-12 17:50:06,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:50:06" (2/3) ... [2024-11-12 17:50:06,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c8c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:50:06, skipping insertion in model container [2024-11-12 17:50:06,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:50:06" (3/3) ... [2024-11-12 17:50:06,708 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_20x0-2.c [2024-11-12 17:50:06,719 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:50:06,720 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-12 17:50:06,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:50:06,766 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;@2ad8bf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:50:06,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 17:50:06,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:50:06,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-12 17:50:06,773 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:06,774 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-12 17:50:06,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:06,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:06,779 INFO L85 PathProgramCache]: Analyzing trace with hash 890593104, now seen corresponding path program 1 times [2024-11-12 17:50:06,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:06,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605041589] [2024-11-12 17:50:06,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:06,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:06,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:06,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605041589] [2024-11-12 17:50:06,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605041589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:06,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:06,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 17:50:06,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172386317] [2024-11-12 17:50:06,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:06,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:50:06,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:50:06,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:50:06,999 INFO L87 Difference]: Start difference. First operand has 32 states, 20 states have (on average 1.5) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:07,102 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2024-11-12 17:50:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:50:07,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-12 17:50:07,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:07,109 INFO L225 Difference]: With dead ends: 62 [2024-11-12 17:50:07,109 INFO L226 Difference]: Without dead ends: 39 [2024-11-12 17:50:07,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:50:07,114 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:07,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 73 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:07,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-12 17:50:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2024-11-12 17:50:07,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:50:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2024-11-12 17:50:07,199 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 6 [2024-11-12 17:50:07,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:07,200 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2024-11-12 17:50:07,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,200 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2024-11-12 17:50:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-12 17:50:07,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:07,201 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:07,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:50:07,202 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:07,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:07,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1838587471, now seen corresponding path program 1 times [2024-11-12 17:50:07,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:07,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903961823] [2024-11-12 17:50:07,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:07,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:07,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903961823] [2024-11-12 17:50:07,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903961823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:07,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:07,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:50:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791987724] [2024-11-12 17:50:07,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:07,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:50:07,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:07,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:50:07,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:50:07,276 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:07,341 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2024-11-12 17:50:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:50:07,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-12 17:50:07,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:07,343 INFO L225 Difference]: With dead ends: 38 [2024-11-12 17:50:07,343 INFO L226 Difference]: Without dead ends: 37 [2024-11-12 17:50:07,343 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:50:07,345 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 27 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:07,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 29 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-12 17:50:07,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-11-12 17:50:07,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:50:07,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-12 17:50:07,357 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 7 [2024-11-12 17:50:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:07,358 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-12 17:50:07,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-12 17:50:07,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-12 17:50:07,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:07,359 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:07,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 17:50:07,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:07,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:07,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1161636818, now seen corresponding path program 1 times [2024-11-12 17:50:07,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:07,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956655798] [2024-11-12 17:50:07,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:07,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:07,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:07,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956655798] [2024-11-12 17:50:07,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956655798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:07,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:07,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:50:07,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657177331] [2024-11-12 17:50:07,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:07,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:50:07,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:07,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:50:07,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:50:07,438 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:07,486 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2024-11-12 17:50:07,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:50:07,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-12 17:50:07,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:07,487 INFO L225 Difference]: With dead ends: 37 [2024-11-12 17:50:07,487 INFO L226 Difference]: Without dead ends: 35 [2024-11-12 17:50:07,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:50:07,488 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 14 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:07,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 68 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:07,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-12 17:50:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-12 17:50:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:50:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-11-12 17:50:07,493 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 8 [2024-11-12 17:50:07,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:07,494 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-11-12 17:50:07,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-11-12 17:50:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-12 17:50:07,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:07,494 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:07,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 17:50:07,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:07,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:07,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1131512701, now seen corresponding path program 1 times [2024-11-12 17:50:07,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:07,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703306162] [2024-11-12 17:50:07,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:07,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:07,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:07,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703306162] [2024-11-12 17:50:07,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703306162] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:07,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775950200] [2024-11-12 17:50:07,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:07,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:07,571 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:07,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:50:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:07,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 17:50:07,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:07,657 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:07,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775950200] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:07,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:07,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-12 17:50:07,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351051172] [2024-11-12 17:50:07,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:07,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:50:07,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:07,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:50:07,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:50:07,707 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:07,810 INFO L93 Difference]: Finished difference Result 88 states and 97 transitions. [2024-11-12 17:50:07,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:50:07,811 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-12 17:50:07,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:07,812 INFO L225 Difference]: With dead ends: 88 [2024-11-12 17:50:07,812 INFO L226 Difference]: Without dead ends: 72 [2024-11-12 17:50:07,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-12 17:50:07,813 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 88 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:07,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 152 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:07,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-12 17:50:07,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 64. [2024-11-12 17:50:07,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 52 states have internal predecessors, (59), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:50:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2024-11-12 17:50:07,821 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 13 [2024-11-12 17:50:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:07,823 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2024-11-12 17:50:07,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2024-11-12 17:50:07,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-12 17:50:07,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:07,823 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:07,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 17:50:08,027 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 [2024-11-12 17:50:08,028 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:08,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:08,028 INFO L85 PathProgramCache]: Analyzing trace with hash 757135551, now seen corresponding path program 1 times [2024-11-12 17:50:08,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:08,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183512271] [2024-11-12 17:50:08,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:08,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:08,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:08,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183512271] [2024-11-12 17:50:08,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183512271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:08,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408873945] [2024-11-12 17:50:08,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:08,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:08,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:08,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:08,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:50:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:08,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:50:08,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:08,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:08,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:50:08,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408873945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:08,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:50:08,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-12 17:50:08,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54938683] [2024-11-12 17:50:08,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:08,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:50:08,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:08,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:50:08,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:50:08,163 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:08,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:08,194 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2024-11-12 17:50:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:50:08,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-12 17:50:08,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:08,196 INFO L225 Difference]: With dead ends: 66 [2024-11-12 17:50:08,197 INFO L226 Difference]: Without dead ends: 65 [2024-11-12 17:50:08,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-12 17:50:08,198 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:08,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 63 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:08,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-12 17:50:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2024-11-12 17:50:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 51 states have internal predecessors, (55), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:50:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 67 transitions. [2024-11-12 17:50:08,211 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 67 transitions. Word has length 15 [2024-11-12 17:50:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:08,212 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 67 transitions. [2024-11-12 17:50:08,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 67 transitions. [2024-11-12 17:50:08,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-12 17:50:08,212 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:08,212 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:08,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 17:50:08,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:08,413 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:08,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:08,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1996365668, now seen corresponding path program 1 times [2024-11-12 17:50:08,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:08,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233464889] [2024-11-12 17:50:08,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:08,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:08,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:08,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233464889] [2024-11-12 17:50:08,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233464889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:08,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373906185] [2024-11-12 17:50:08,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:08,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:08,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:08,497 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:08,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:50:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:08,527 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-12 17:50:08,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:08,561 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:08,562 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:08,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:08,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373906185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:08,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:08,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-12 17:50:08,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908445871] [2024-11-12 17:50:08,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:08,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-12 17:50:08,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:08,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-12 17:50:08,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:50:08,644 INFO L87 Difference]: Start difference. First operand 63 states and 67 transitions. Second operand has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:08,765 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2024-11-12 17:50:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:50:08,765 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-12 17:50:08,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:08,766 INFO L225 Difference]: With dead ends: 66 [2024-11-12 17:50:08,766 INFO L226 Difference]: Without dead ends: 65 [2024-11-12 17:50:08,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2024-11-12 17:50:08,767 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 60 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:08,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 155 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-12 17:50:08,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2024-11-12 17:50:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 51 states have internal predecessors, (52), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:50:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2024-11-12 17:50:08,774 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 16 [2024-11-12 17:50:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:08,774 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2024-11-12 17:50:08,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 3.090909090909091) internal successors, (34), 10 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2024-11-12 17:50:08,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-12 17:50:08,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:08,775 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-12 17:50:08,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 17:50:08,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:08,976 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:08,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:08,977 INFO L85 PathProgramCache]: Analyzing trace with hash 490520080, now seen corresponding path program 2 times [2024-11-12 17:50:08,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:08,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139652026] [2024-11-12 17:50:08,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:08,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:09,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:09,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139652026] [2024-11-12 17:50:09,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139652026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:09,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959059005] [2024-11-12 17:50:09,132 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:50:09,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:09,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:09,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:09,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 17:50:09,166 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:50:09,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:50:09,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 17:50:09,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:09,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:09,366 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:09,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959059005] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:09,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:09,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-11-12 17:50:09,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986881400] [2024-11-12 17:50:09,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:09,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-12 17:50:09,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:09,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-12 17:50:09,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-11-12 17:50:09,368 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:09,633 INFO L93 Difference]: Finished difference Result 155 states and 167 transitions. [2024-11-12 17:50:09,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-12 17:50:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-11-12 17:50:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:09,634 INFO L225 Difference]: With dead ends: 155 [2024-11-12 17:50:09,634 INFO L226 Difference]: Without dead ends: 131 [2024-11-12 17:50:09,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-11-12 17:50:09,635 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 180 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:09,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 296 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-12 17:50:09,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 123. [2024-11-12 17:50:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 95 states have (on average 1.1157894736842104) internal successors, (106), 99 states have internal predecessors, (106), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-12 17:50:09,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 130 transitions. [2024-11-12 17:50:09,655 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 130 transitions. Word has length 34 [2024-11-12 17:50:09,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:09,655 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 130 transitions. [2024-11-12 17:50:09,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 2.5454545454545454) internal successors, (56), 14 states have internal predecessors, (56), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:09,656 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 130 transitions. [2024-11-12 17:50:09,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-12 17:50:09,656 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:09,656 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2024-11-12 17:50:09,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 17:50:09,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:09,857 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:09,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:09,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1609791473, now seen corresponding path program 2 times [2024-11-12 17:50:09,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:09,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610965558] [2024-11-12 17:50:09,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:09,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:10,005 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:10,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:10,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610965558] [2024-11-12 17:50:10,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610965558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:10,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540098603] [2024-11-12 17:50:10,006 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:50:10,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:10,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:10,008 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:10,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 17:50:10,044 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:50:10,044 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:50:10,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 17:50:10,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:10,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:10,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540098603] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:10,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:10,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-11-12 17:50:10,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060436158] [2024-11-12 17:50:10,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:10,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-12 17:50:10,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:10,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-12 17:50:10,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-11-12 17:50:10,283 INFO L87 Difference]: Start difference. First operand 123 states and 130 transitions. Second operand has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:10,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:10,534 INFO L93 Difference]: Finished difference Result 126 states and 133 transitions. [2024-11-12 17:50:10,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-12 17:50:10,535 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-12 17:50:10,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:10,536 INFO L225 Difference]: With dead ends: 126 [2024-11-12 17:50:10,536 INFO L226 Difference]: Without dead ends: 125 [2024-11-12 17:50:10,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2024-11-12 17:50:10,537 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 144 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:10,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 344 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:50:10,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-12 17:50:10,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2024-11-12 17:50:10,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 95 states have (on average 1.0526315789473684) internal successors, (100), 99 states have internal predecessors, (100), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-12 17:50:10,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2024-11-12 17:50:10,547 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 37 [2024-11-12 17:50:10,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:10,547 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2024-11-12 17:50:10,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 16 states have internal predecessors, (70), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:10,547 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2024-11-12 17:50:10,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-12 17:50:10,548 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:10,548 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-11-12 17:50:10,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-12 17:50:10,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:10,753 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:10,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1327054896, now seen corresponding path program 3 times [2024-11-12 17:50:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:10,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721489436] [2024-11-12 17:50:10,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:10,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:11,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:11,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721489436] [2024-11-12 17:50:11,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721489436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:11,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267858277] [2024-11-12 17:50:11,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:50:11,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:11,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:11,118 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:11,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 17:50:11,146 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-12 17:50:11,147 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:50:11,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 17:50:11,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:11,228 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-12 17:50:11,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:50:11,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267858277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:11,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:50:11,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [25] total 29 [2024-11-12 17:50:11,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251013655] [2024-11-12 17:50:11,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:11,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:50:11,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:11,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:50:11,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2024-11-12 17:50:11,230 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:11,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:11,313 INFO L93 Difference]: Finished difference Result 125 states and 127 transitions. [2024-11-12 17:50:11,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:50:11,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2024-11-12 17:50:11,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:11,314 INFO L225 Difference]: With dead ends: 125 [2024-11-12 17:50:11,314 INFO L226 Difference]: Without dead ends: 124 [2024-11-12 17:50:11,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=193, Invalid=799, Unknown=0, NotChecked=0, Total=992 [2024-11-12 17:50:11,315 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:11,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 59 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:11,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-12 17:50:11,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2024-11-12 17:50:11,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 95 states have (on average 1.0421052631578946) internal successors, (99), 98 states have internal predecessors, (99), 12 states have call successors, (12), 11 states have call predecessors, (12), 11 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-12 17:50:11,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2024-11-12 17:50:11,333 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 76 [2024-11-12 17:50:11,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:11,333 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2024-11-12 17:50:11,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:11,333 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2024-11-12 17:50:11,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-12 17:50:11,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:11,335 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:11,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-12 17:50:11,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:11,535 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:11,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:11,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1810971126, now seen corresponding path program 1 times [2024-11-12 17:50:11,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:11,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440602950] [2024-11-12 17:50:11,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:11,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:11,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:11,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440602950] [2024-11-12 17:50:11,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440602950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:11,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694203010] [2024-11-12 17:50:11,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:11,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:11,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:11,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:11,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 17:50:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:11,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-12 17:50:11,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:12,370 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:12,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:13,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694203010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:13,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:13,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 68 [2024-11-12 17:50:13,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354955504] [2024-11-12 17:50:13,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:13,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-11-12 17:50:13,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:13,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-11-12 17:50:13,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=624, Invalid=3932, Unknown=0, NotChecked=0, Total=4556 [2024-11-12 17:50:13,029 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 68 states, 65 states have (on average 2.876923076923077) internal successors, (187), 37 states have internal predecessors, (187), 32 states have call successors, (32), 31 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:14,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:14,010 INFO L93 Difference]: Finished difference Result 274 states and 295 transitions. [2024-11-12 17:50:14,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-12 17:50:14,011 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 65 states have (on average 2.876923076923077) internal successors, (187), 37 states have internal predecessors, (187), 32 states have call successors, (32), 31 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-12 17:50:14,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:14,012 INFO L225 Difference]: With dead ends: 274 [2024-11-12 17:50:14,012 INFO L226 Difference]: Without dead ends: 232 [2024-11-12 17:50:14,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2333 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1785, Invalid=8115, Unknown=0, NotChecked=0, Total=9900 [2024-11-12 17:50:14,015 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 642 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:14,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 765 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:50:14,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-12 17:50:14,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 221. [2024-11-12 17:50:14,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 175 states have (on average 1.0685714285714285) internal successors, (187), 177 states have internal predecessors, (187), 22 states have call successors, (22), 21 states have call predecessors, (22), 21 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:50:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 231 transitions. [2024-11-12 17:50:14,027 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 231 transitions. Word has length 77 [2024-11-12 17:50:14,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:14,028 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 231 transitions. [2024-11-12 17:50:14,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 65 states have (on average 2.876923076923077) internal successors, (187), 37 states have internal predecessors, (187), 32 states have call successors, (32), 31 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 231 transitions. [2024-11-12 17:50:14,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-12 17:50:14,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:14,029 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 1, 1, 1, 1] [2024-11-12 17:50:14,047 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 17:50:14,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:14,234 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:14,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1916377020, now seen corresponding path program 3 times [2024-11-12 17:50:14,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:14,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183380661] [2024-11-12 17:50:14,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:14,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:14,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:14,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183380661] [2024-11-12 17:50:14,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183380661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:14,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107216545] [2024-11-12 17:50:14,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:50:14,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:14,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:14,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:14,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 17:50:14,626 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-12 17:50:14,626 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:50:14,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-12 17:50:14,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:14,751 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:15,226 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:15,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107216545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:15,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:15,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 54 [2024-11-12 17:50:15,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302388956] [2024-11-12 17:50:15,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:15,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-12 17:50:15,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:15,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-12 17:50:15,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=710, Invalid=2260, Unknown=0, NotChecked=0, Total=2970 [2024-11-12 17:50:15,229 INFO L87 Difference]: Start difference. First operand 221 states and 231 transitions. Second operand has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:15,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:15,831 INFO L93 Difference]: Finished difference Result 284 states and 302 transitions. [2024-11-12 17:50:15,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-12 17:50:15,831 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-12 17:50:15,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:15,833 INFO L225 Difference]: With dead ends: 284 [2024-11-12 17:50:15,833 INFO L226 Difference]: Without dead ends: 283 [2024-11-12 17:50:15,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1360 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1636, Invalid=4526, Unknown=0, NotChecked=0, Total=6162 [2024-11-12 17:50:15,836 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 473 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:15,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 562 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:50:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-12 17:50:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2024-11-12 17:50:15,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 215 states have (on average 1.0511627906976744) internal successors, (226), 217 states have internal predecessors, (226), 26 states have call successors, (26), 25 states have call predecessors, (26), 25 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-12 17:50:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 278 transitions. [2024-11-12 17:50:15,856 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 278 transitions. Word has length 86 [2024-11-12 17:50:15,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:15,856 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 278 transitions. [2024-11-12 17:50:15,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 51 states have (on average 3.019607843137255) internal successors, (154), 30 states have internal predecessors, (154), 26 states have call successors, (26), 25 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 278 transitions. [2024-11-12 17:50:15,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-12 17:50:15,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:15,863 INFO L218 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:15,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-12 17:50:16,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-12 17:50:16,063 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:16,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:16,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1202902742, now seen corresponding path program 2 times [2024-11-12 17:50:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:16,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316300271] [2024-11-12 17:50:16,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:16,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:16,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:16,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316300271] [2024-11-12 17:50:16,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316300271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:50:16,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211595249] [2024-11-12 17:50:16,850 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:50:16,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:16,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:50:16,851 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 17:50:16,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 17:50:16,902 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:50:16,902 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:50:16,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-12 17:50:16,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:50:17,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:17,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:50:18,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:50:18,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211595249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:50:18,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:50:18,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 93 [2024-11-12 17:50:18,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341129334] [2024-11-12 17:50:18,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:50:18,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2024-11-12 17:50:18,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:18,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2024-11-12 17:50:18,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2019, Invalid=6723, Unknown=0, NotChecked=0, Total=8742 [2024-11-12 17:50:18,264 INFO L87 Difference]: Start difference. First operand 269 states and 278 transitions. Second operand has 94 states, 90 states have (on average 2.9) internal successors, (261), 51 states have internal predecessors, (261), 44 states have call successors, (44), 43 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:20,251 INFO L93 Difference]: Finished difference Result 518 states and 578 transitions. [2024-11-12 17:50:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2024-11-12 17:50:20,251 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 90 states have (on average 2.9) internal successors, (261), 51 states have internal predecessors, (261), 44 states have call successors, (44), 43 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 147 [2024-11-12 17:50:20,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:20,253 INFO L225 Difference]: With dead ends: 518 [2024-11-12 17:50:20,253 INFO L226 Difference]: Without dead ends: 516 [2024-11-12 17:50:20,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6112 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5898, Invalid=19224, Unknown=0, NotChecked=0, Total=25122 [2024-11-12 17:50:20,258 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1509 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:20,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 982 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 17:50:20,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-12 17:50:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 472. [2024-11-12 17:50:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 385 states have (on average 1.0597402597402596) internal successors, (408), 386 states have internal predecessors, (408), 43 states have call successors, (43), 42 states have call predecessors, (43), 42 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-12 17:50:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 494 transitions. [2024-11-12 17:50:20,278 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 494 transitions. Word has length 147 [2024-11-12 17:50:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:20,279 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 494 transitions. [2024-11-12 17:50:20,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 90 states have (on average 2.9) internal successors, (261), 51 states have internal predecessors, (261), 44 states have call successors, (44), 43 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 494 transitions. [2024-11-12 17:50:20,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-12 17:50:20,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:20,281 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:50:20,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-12 17:50:20,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:50:20,482 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:20,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:20,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1143804808, now seen corresponding path program 1 times [2024-11-12 17:50:20,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006297635] [2024-11-12 17:50:20,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:20,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:50:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-12 17:50:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1980 trivial. 0 not checked. [2024-11-12 17:50:20,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006297635] [2024-11-12 17:50:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006297635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:20,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:20,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:50:20,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60053536] [2024-11-12 17:50:20,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:20,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:50:20,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:20,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:50:20,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:50:20,820 INFO L87 Difference]: Start difference. First operand 472 states and 494 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:50:20,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:20,838 INFO L93 Difference]: Finished difference Result 472 states and 494 transitions. [2024-11-12 17:50:20,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:50:20,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 212 [2024-11-12 17:50:20,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:20,840 INFO L225 Difference]: With dead ends: 472 [2024-11-12 17:50:20,840 INFO L226 Difference]: Without dead ends: 298 [2024-11-12 17:50:20,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:50:20,842 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:20,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:50:20,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-12 17:50:20,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 297. [2024-11-12 17:50:20,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 254 states have (on average 1.0039370078740157) internal successors, (255), 254 states have internal predecessors, (255), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:20,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 297 transitions. [2024-11-12 17:50:20,856 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 297 transitions. Word has length 212 [2024-11-12 17:50:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:20,856 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 297 transitions. [2024-11-12 17:50:20,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-12 17:50:20,856 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 297 transitions. [2024-11-12 17:50:20,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-12 17:50:20,859 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:50:20,859 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 42, 41, 41, 1, 1, 1, 1] [2024-11-12 17:50:20,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 17:50:20,859 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-12 17:50:20,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:50:20,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1719685860, now seen corresponding path program 4 times [2024-11-12 17:50:20,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:50:20,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251057867] [2024-11-12 17:50:20,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:50:20,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:50:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:50:21,887 INFO L134 CoverageAnalysis]: Checked inductivity of 5986 backedges. 4432 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2024-11-12 17:50:21,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:50:21,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251057867] [2024-11-12 17:50:21,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251057867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:50:21,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:50:21,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2024-11-12 17:50:21,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037877850] [2024-11-12 17:50:21,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:50:21,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-12 17:50:21,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:50:21,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-12 17:50:21,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=1473, Unknown=0, NotChecked=0, Total=1980 [2024-11-12 17:50:21,890 INFO L87 Difference]: Start difference. First operand 297 states and 297 transitions. Second operand has 45 states, 44 states have (on average 2.977272727272727) internal successors, (131), 24 states have internal predecessors, (131), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:22,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:50:22,220 INFO L93 Difference]: Finished difference Result 297 states and 297 transitions. [2024-11-12 17:50:22,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-12 17:50:22,220 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.977272727272727) internal successors, (131), 24 states have internal predecessors, (131), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 296 [2024-11-12 17:50:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:50:22,221 INFO L225 Difference]: With dead ends: 297 [2024-11-12 17:50:22,221 INFO L226 Difference]: Without dead ends: 0 [2024-11-12 17:50:22,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 780 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1221, Invalid=3069, Unknown=0, NotChecked=0, Total=4290 [2024-11-12 17:50:22,223 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 121 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:50:22,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 324 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:50:22,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-12 17:50:22,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-12 17:50:22,223 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) [2024-11-12 17:50:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 17:50:22,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 296 [2024-11-12 17:50:22,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:50:22,223 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 17:50:22,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.977272727272727) internal successors, (131), 24 states have internal predecessors, (131), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:50:22,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-12 17:50:22,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-12 17:50:22,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-12 17:50:22,226 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-12 17:50:22,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-12 17:50:22,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-12 17:50:22,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-12 17:50:22,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-12 17:50:22,227 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-12 17:50:22,228 INFO L782 garLoopResultBuilder]: Registering result SAFE for location sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-12 17:50:22,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 17:50:22,230 INFO L421 BasicCegarLoop]: Path program histogram: [4, 3, 2, 1, 1, 1, 1, 1] [2024-11-12 17:50:22,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-12 17:50:26,844 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 17:50:27,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-12 17:50:27,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:50:27 BoogieIcfgContainer [2024-11-12 17:50:27,014 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 17:50:27,014 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 17:50:27,014 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 17:50:27,014 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 17:50:27,015 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:50:06" (3/4) ... [2024-11-12 17:50:27,016 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 17:50:27,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2024-11-12 17:50:27,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-12 17:50:27,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-12 17:50:27,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 17:50:27,022 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 17:50:27,086 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 17:50:27,086 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 17:50:27,086 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 17:50:27,087 INFO L158 Benchmark]: Toolchain (without parser) took 20822.32ms. Allocated memory was 165.7MB in the beginning and 566.2MB in the end (delta: 400.6MB). Free memory was 132.9MB in the beginning and 404.5MB in the end (delta: -271.6MB). Peak memory consumption was 128.2MB. Max. memory is 16.1GB. [2024-11-12 17:50:27,087 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 125.8MB. Free memory was 88.1MB in the beginning and 87.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:50:27,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.04ms. Allocated memory is still 165.7MB. Free memory was 132.9MB in the beginning and 121.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 17:50:27,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.71ms. Allocated memory is still 165.7MB. Free memory was 121.0MB in the beginning and 119.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 17:50:27,087 INFO L158 Benchmark]: Boogie Preprocessor took 21.25ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 118.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 17:50:27,088 INFO L158 Benchmark]: RCFGBuilder took 209.28ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 107.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 17:50:27,088 INFO L158 Benchmark]: TraceAbstraction took 20310.49ms. Allocated memory was 165.7MB in the beginning and 566.2MB in the end (delta: 400.6MB). Free memory was 107.0MB in the beginning and 408.7MB in the end (delta: -301.7MB). Peak memory consumption was 256.2MB. Max. memory is 16.1GB. [2024-11-12 17:50:27,088 INFO L158 Benchmark]: Witness Printer took 72.08ms. Allocated memory is still 566.2MB. Free memory was 408.7MB in the beginning and 404.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 17:50:27,089 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 125.8MB. Free memory was 88.1MB in the beginning and 87.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.04ms. Allocated memory is still 165.7MB. Free memory was 132.9MB in the beginning and 121.0MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.71ms. Allocated memory is still 165.7MB. Free memory was 121.0MB in the beginning and 119.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.25ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 118.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 209.28ms. Allocated memory is still 165.7MB. Free memory was 118.3MB in the beginning and 107.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 20310.49ms. Allocated memory was 165.7MB in the beginning and 566.2MB in the end (delta: 400.6MB). Free memory was 107.0MB in the beginning and 408.7MB in the end (delta: -301.7MB). Peak memory consumption was 256.2MB. Max. memory is 16.1GB. * Witness Printer took 72.08ms. Allocated memory is still 566.2MB. Free memory was 408.7MB in the beginning and 404.5MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 7]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: 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, 32 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 15.5s, OverallIterations: 14, TraceHistogramMax: 42, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3348 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3331 mSDsluCounter, 3907 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3462 mSDsCounter, 406 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3543 IncrementalHoareTripleChecker+Invalid, 3949 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 406 mSolverCounterUnsat, 445 mSDtfsCounter, 3543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1342 GetRequests, 792 SyntacticMatches, 4 SemanticMatches, 546 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11311 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=472occurred in iteration=12, InterpolantAutomatonStates: 354, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 99 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 1531 NumberOfCodeBlocks, 1468 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1911 ConstructedInterpolants, 0 QuantifiedInterpolants, 4871 SizeOfPredicates, 62 NumberOfNonLiveVariables, 1141 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 30 InterpolantComputations, 7 PerfectInterpolantSequences, 8306/15486 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 8 specifications checked. All of them hold - ProcedureContractResult [Line: 5]: Procedure Contract for sum Derived contract for procedure sum. Requires: (((((((((((((((((((((((m <= 4) && (0 <= (m + 2147483648))) && (16 == n)) || ((((1 <= n) && (n <= 11)) && (0 <= (m + 2147483648))) && (m <= 9))) || ((((n <= 10) && (0 <= n)) && (0 <= (m + 2147483648))) && (m <= 10))) || (((n == 0) && (0 <= (m + 2147483648))) && (m <= 20))) || (((0 <= (m + 2147483648)) && (n == 1)) && (m <= 19))) || (((18 == n) && (0 <= (m + 2147483648))) && (m <= 2))) || (((m <= 7) && (0 <= (m + 2147483648))) && (n == 13))) || (((m <= 6) && (0 <= (m + 2147483648))) && (14 == n))) || ((((m <= 16) && (0 <= n)) && (0 <= (m + 2147483648))) && (n <= 4))) || (((0 <= (m + 2147483648)) && (19 == n)) && (m <= 1))) || (((6 == n) && (m <= 14)) && (0 <= (m + 2147483648)))) || (((m <= 12) && (0 <= (m + 2147483648))) && (8 == n))) || (((3 == n) && (0 <= (m + 2147483648))) && (m <= 17))) || ((((0 <= n) && (0 <= (m + 2147483648))) && (n <= 15)) && (m <= 5))) || ((((1 <= n) && (m <= 3)) && (0 <= (m + 2147483648))) && (n <= 17))) || ((((m <= 15) && (0 <= n)) && (n <= 5)) && (0 <= (m + 2147483648)))) || (((7 == n) && (0 <= (m + 2147483648))) && (m <= 13))) || (((2 == n) && (0 <= (m + 2147483648))) && (m <= 18))) || ((20 == n) && (m == 0))) || ((((m <= 8) && (n <= 12)) && (0 <= (m + 2147483648))) && (2 <= n))) || (((0 <= (m + 2147483648)) && (9 == n)) && (m <= 11))) Ensures: (((((((((((((((((((((((m <= 4) && (0 <= (m + 2147483648))) && (16 == n)) || ((((1 <= n) && (n <= 11)) && (0 <= (m + 2147483648))) && (m <= 9))) || ((((n <= 10) && (0 <= n)) && (0 <= (m + 2147483648))) && (m <= 10))) || (((n == 0) && (0 <= (m + 2147483648))) && (m <= 20))) || (((0 <= (m + 2147483648)) && (n == 1)) && (m <= 19))) || (((18 == n) && (0 <= (m + 2147483648))) && (m <= 2))) || (((m <= 7) && (0 <= (m + 2147483648))) && (n == 13))) || (((m <= 6) && (0 <= (m + 2147483648))) && (14 == n))) || ((((m <= 16) && (0 <= n)) && (0 <= (m + 2147483648))) && (n <= 4))) || (((0 <= (m + 2147483648)) && (19 == n)) && (m <= 1))) || (((6 == n) && (m <= 14)) && (0 <= (m + 2147483648)))) || (((m <= 12) && (0 <= (m + 2147483648))) && (8 == n))) || (((3 == n) && (0 <= (m + 2147483648))) && (m <= 17))) || ((((0 <= n) && (0 <= (m + 2147483648))) && (n <= 15)) && (m <= 5))) || ((((1 <= n) && (m <= 3)) && (0 <= (m + 2147483648))) && (n <= 17))) || ((((m <= 15) && (0 <= n)) && (n <= 5)) && (0 <= (m + 2147483648)))) || (((7 == n) && (0 <= (m + 2147483648))) && (m <= 13))) || (((2 == n) && (0 <= (m + 2147483648))) && (m <= 18))) || ((20 == n) && (m == 0))) || ((((m <= 8) && (n <= 12)) && (0 <= (m + 2147483648))) && (2 <= n))) || (((0 <= (m + 2147483648)) && (9 == n)) && (m <= 11))) RESULT: Ultimate proved your program to be correct! [2024-11-12 17:50:27,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE