./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/egcd.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/egcd.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 01ca8c8e30ceefcd4f6e4832a31edd1224d925e8551df750bd60cc922035a838 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:28:21,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:28:21,507 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:28:21,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:28:21,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:28:21,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:28:21,539 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:28:21,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:28:21,540 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:28:21,542 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:28:21,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:28:21,542 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:28:21,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:28:21,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:28:21,545 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:28:21,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:28:21,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:28:21,546 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:28:21,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:28:21,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:28:21,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:28:21,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:28:21,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:28:21,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:28:21,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:28:21,548 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:28:21,548 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:28:21,549 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:28:21,549 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:28:21,549 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:28:21,549 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:28:21,550 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:28:21,550 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:28:21,550 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:28:21,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:28:21,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:28:21,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:28:21,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:28:21,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:28:21,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:28:21,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:28:21,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:28:21,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:28:21,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:28:21,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01ca8c8e30ceefcd4f6e4832a31edd1224d925e8551df750bd60cc922035a838 [2024-10-14 20:28:21,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:28:21,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:28:21,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:28:21,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:28:21,870 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:28:21,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/egcd.c [2024-10-14 20:28:23,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:28:23,549 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:28:23,550 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/egcd.c [2024-10-14 20:28:23,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caff4345d/2eb17190483f4cdb822f036011d2d542/FLAG803228cf4 [2024-10-14 20:28:23,926 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caff4345d/2eb17190483f4cdb822f036011d2d542 [2024-10-14 20:28:23,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:28:23,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:28:23,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:28:23,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:28:23,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:28:23,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:28:23" (1/1) ... [2024-10-14 20:28:23,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e089fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:23, skipping insertion in model container [2024-10-14 20:28:23,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:28:23" (1/1) ... [2024-10-14 20:28:23,965 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:28:24,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:28:24,200 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:28:24,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:28:24,232 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:28:24,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24 WrapperNode [2024-10-14 20:28:24,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:28:24,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:28:24,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:28:24,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:28:24,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,269 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2024-10-14 20:28:24,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:28:24,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:28:24,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:28:24,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:28:24,283 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,303 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-10-14 20:28:24,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:28:24,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:28:24,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:28:24,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:28:24,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (1/1) ... [2024-10-14 20:28:24,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:28:24,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:24,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:28:24,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:28:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:28:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:28:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:28:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:28:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 20:28:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:28:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:28:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:28:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:28:24,483 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:28:24,485 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:28:25,128 INFO L? ?]: Removed 157 outVars from TransFormulas that were not future-live. [2024-10-14 20:28:25,129 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:28:25,170 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:28:25,171 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:28:25,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:28:25 BoogieIcfgContainer [2024-10-14 20:28:25,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:28:25,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:28:25,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:28:25,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:28:25,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:28:23" (1/3) ... [2024-10-14 20:28:25,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f541a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:28:25, skipping insertion in model container [2024-10-14 20:28:25,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:28:24" (2/3) ... [2024-10-14 20:28:25,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f541a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:28:25, skipping insertion in model container [2024-10-14 20:28:25,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:28:25" (3/3) ... [2024-10-14 20:28:25,183 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd.c [2024-10-14 20:28:25,200 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:28:25,200 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2024-10-14 20:28:25,275 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:28:25,281 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;@48a8c50e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:28:25,282 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-10-14 20:28:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 68 states have (on average 1.911764705882353) internal successors, (130), 124 states have internal predecessors, (130), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:28:25,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:28:25,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:25,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:25,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:25,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:25,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1185362972, now seen corresponding path program 1 times [2024-10-14 20:28:25,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:25,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756881408] [2024-10-14 20:28:25,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:25,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:25,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:25,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:25,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:25,489 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:25,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:25,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756881408] [2024-10-14 20:28:25,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756881408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:25,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:25,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:25,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501508129] [2024-10-14 20:28:25,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:25,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:28:25,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:25,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:28:25,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:28:25,529 INFO L87 Difference]: Start difference. First operand has 136 states, 68 states have (on average 1.911764705882353) internal successors, (130), 124 states have internal predecessors, (130), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:28:25,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:25,562 INFO L93 Difference]: Finished difference Result 270 states and 302 transitions. [2024-10-14 20:28:25,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:28:25,564 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-10-14 20:28:25,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:25,571 INFO L225 Difference]: With dead ends: 270 [2024-10-14 20:28:25,571 INFO L226 Difference]: Without dead ends: 133 [2024-10-14 20:28:25,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:28:25,578 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:25,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:28:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-10-14 20:28:25,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-10-14 20:28:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 67 states have (on average 1.8507462686567164) internal successors, (124), 122 states have internal predecessors, (124), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:28:25,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 140 transitions. [2024-10-14 20:28:25,625 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 140 transitions. Word has length 14 [2024-10-14 20:28:25,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:25,625 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 140 transitions. [2024-10-14 20:28:25,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:28:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 140 transitions. [2024-10-14 20:28:25,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:28:25,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:25,628 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:25,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:28:25,628 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:25,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:25,629 INFO L85 PathProgramCache]: Analyzing trace with hash -427042525, now seen corresponding path program 1 times [2024-10-14 20:28:25,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:25,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366573339] [2024-10-14 20:28:25,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:25,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:25,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803784765] [2024-10-14 20:28:25,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:25,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:25,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:25,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:25,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:28:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:25,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:28:25,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:25,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:25,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:25,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:25,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366573339] [2024-10-14 20:28:25,819 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:25,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803784765] [2024-10-14 20:28:25,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803784765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:25,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:25,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:25,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19573752] [2024-10-14 20:28:25,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:25,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:28:25,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:25,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:28:25,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:25,824 INFO L87 Difference]: Start difference. First operand 133 states and 140 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:28:26,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:26,145 INFO L93 Difference]: Finished difference Result 218 states and 264 transitions. [2024-10-14 20:28:26,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:26,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-14 20:28:26,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:26,149 INFO L225 Difference]: With dead ends: 218 [2024-10-14 20:28:26,149 INFO L226 Difference]: Without dead ends: 214 [2024-10-14 20:28:26,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:26,152 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 73 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:26,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 135 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:28:26,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-10-14 20:28:26,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 172. [2024-10-14 20:28:26,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 101 states have (on average 1.8514851485148516) internal successors, (187), 156 states have internal predecessors, (187), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 20:28:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 213 transitions. [2024-10-14 20:28:26,188 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 213 transitions. Word has length 14 [2024-10-14 20:28:26,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:26,189 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 213 transitions. [2024-10-14 20:28:26,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:28:26,189 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 213 transitions. [2024-10-14 20:28:26,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 20:28:26,190 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:26,190 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:26,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:28:26,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:26,392 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:26,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:26,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1928995429, now seen corresponding path program 1 times [2024-10-14 20:28:26,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:26,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177563429] [2024-10-14 20:28:26,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:26,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:26,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060243866] [2024-10-14 20:28:26,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:26,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:26,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:26,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:26,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:28:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:26,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:28:26,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:26,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:26,485 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:26,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177563429] [2024-10-14 20:28:26,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:26,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060243866] [2024-10-14 20:28:26,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060243866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:26,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:26,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:26,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067628182] [2024-10-14 20:28:26,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:26,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:28:26,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:26,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:28:26,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:26,487 INFO L87 Difference]: Start difference. First operand 172 states and 213 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:28:26,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:26,719 INFO L93 Difference]: Finished difference Result 273 states and 337 transitions. [2024-10-14 20:28:26,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:26,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-10-14 20:28:26,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:26,723 INFO L225 Difference]: With dead ends: 273 [2024-10-14 20:28:26,723 INFO L226 Difference]: Without dead ends: 265 [2024-10-14 20:28:26,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:26,726 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 84 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:26,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 193 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:28:26,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-10-14 20:28:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 225. [2024-10-14 20:28:26,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 148 states have (on average 1.7972972972972974) internal successors, (266), 203 states have internal predecessors, (266), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-14 20:28:26,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 304 transitions. [2024-10-14 20:28:26,759 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 304 transitions. Word has length 16 [2024-10-14 20:28:26,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:26,759 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 304 transitions. [2024-10-14 20:28:26,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:28:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 304 transitions. [2024-10-14 20:28:26,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-14 20:28:26,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:26,765 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:26,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:28:26,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-14 20:28:26,966 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:26,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1661262937, now seen corresponding path program 1 times [2024-10-14 20:28:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:26,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311782232] [2024-10-14 20:28:26,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:26,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:26,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693071451] [2024-10-14 20:28:26,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:26,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:26,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:26,993 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:26,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:28:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:27,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:28:27,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:27,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:27,095 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:27,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:27,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311782232] [2024-10-14 20:28:27,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:27,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693071451] [2024-10-14 20:28:27,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693071451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:27,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:27,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:27,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569866962] [2024-10-14 20:28:27,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:27,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:28:27,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:27,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:28:27,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:27,098 INFO L87 Difference]: Start difference. First operand 225 states and 304 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:28:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:27,363 INFO L93 Difference]: Finished difference Result 259 states and 323 transitions. [2024-10-14 20:28:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:27,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-10-14 20:28:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:27,365 INFO L225 Difference]: With dead ends: 259 [2024-10-14 20:28:27,365 INFO L226 Difference]: Without dead ends: 245 [2024-10-14 20:28:27,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:27,366 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 61 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:27,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 121 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:28:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2024-10-14 20:28:27,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 190. [2024-10-14 20:28:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 118 states have (on average 1.7203389830508475) internal successors, (203), 173 states have internal predecessors, (203), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 20:28:27,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 231 transitions. [2024-10-14 20:28:27,381 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 231 transitions. Word has length 18 [2024-10-14 20:28:27,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:27,381 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 231 transitions. [2024-10-14 20:28:27,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:28:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 231 transitions. [2024-10-14 20:28:27,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 20:28:27,384 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:27,384 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:27,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:27,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:27,585 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:27,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1818360847, now seen corresponding path program 1 times [2024-10-14 20:28:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886597332] [2024-10-14 20:28:27,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:27,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071404853] [2024-10-14 20:28:27,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:27,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:27,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:27,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:27,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:28:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:27,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:28:27,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:27,683 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:27,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886597332] [2024-10-14 20:28:27,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:27,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071404853] [2024-10-14 20:28:27,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071404853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:27,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:27,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:27,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126016068] [2024-10-14 20:28:27,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:27,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:28:27,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:27,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:28:27,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:27,686 INFO L87 Difference]: Start difference. First operand 190 states and 231 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:28,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:28,022 INFO L93 Difference]: Finished difference Result 352 states and 450 transitions. [2024-10-14 20:28:28,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:28,022 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-10-14 20:28:28,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:28,025 INFO L225 Difference]: With dead ends: 352 [2024-10-14 20:28:28,025 INFO L226 Difference]: Without dead ends: 344 [2024-10-14 20:28:28,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:28,026 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 84 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:28,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 189 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:28:28,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-10-14 20:28:28,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 269. [2024-10-14 20:28:28,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 188 states have (on average 1.696808510638298) internal successors, (319), 243 states have internal predecessors, (319), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:28,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 365 transitions. [2024-10-14 20:28:28,049 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 365 transitions. Word has length 25 [2024-10-14 20:28:28,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:28,050 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 365 transitions. [2024-10-14 20:28:28,050 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:28,050 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 365 transitions. [2024-10-14 20:28:28,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-14 20:28:28,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:28,052 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:28,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:28,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:28,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:28,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:28,257 INFO L85 PathProgramCache]: Analyzing trace with hash -606913551, now seen corresponding path program 1 times [2024-10-14 20:28:28,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:28,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965844885] [2024-10-14 20:28:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:28,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:28,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787639005] [2024-10-14 20:28:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:28,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:28,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:28,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:28,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:28:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:28,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:28,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:28,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:28,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:28,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:28,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965844885] [2024-10-14 20:28:28,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:28,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787639005] [2024-10-14 20:28:28,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787639005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:28,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:28,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:28,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015330897] [2024-10-14 20:28:28,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:28,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:28,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:28,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:28,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:28,427 INFO L87 Difference]: Start difference. First operand 269 states and 365 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:28,701 INFO L93 Difference]: Finished difference Result 322 states and 430 transitions. [2024-10-14 20:28:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:28,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-10-14 20:28:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:28,704 INFO L225 Difference]: With dead ends: 322 [2024-10-14 20:28:28,704 INFO L226 Difference]: Without dead ends: 320 [2024-10-14 20:28:28,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:28,705 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 231 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:28,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 134 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:28:28,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-10-14 20:28:28,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 269. [2024-10-14 20:28:28,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 188 states have (on average 1.675531914893617) internal successors, (315), 243 states have internal predecessors, (315), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:28,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 361 transitions. [2024-10-14 20:28:28,724 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 361 transitions. Word has length 27 [2024-10-14 20:28:28,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:28,725 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 361 transitions. [2024-10-14 20:28:28,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:28,725 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 361 transitions. [2024-10-14 20:28:28,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-14 20:28:28,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:28,727 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:28,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:28,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:28,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:28,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:28,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1634450832, now seen corresponding path program 1 times [2024-10-14 20:28:28,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:28,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558092893] [2024-10-14 20:28:28,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:28,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:28,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374474611] [2024-10-14 20:28:28,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:28,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:28,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:28,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:28,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:28:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:28,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:29,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:29,060 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:29,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:29,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558092893] [2024-10-14 20:28:29,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:29,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374474611] [2024-10-14 20:28:29,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374474611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:29,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:29,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:29,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847043245] [2024-10-14 20:28:29,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:29,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:29,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:29,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:29,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:29,062 INFO L87 Difference]: Start difference. First operand 269 states and 361 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:29,323 INFO L93 Difference]: Finished difference Result 322 states and 426 transitions. [2024-10-14 20:28:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:29,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-10-14 20:28:29,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:29,325 INFO L225 Difference]: With dead ends: 322 [2024-10-14 20:28:29,326 INFO L226 Difference]: Without dead ends: 320 [2024-10-14 20:28:29,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:29,327 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 229 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:29,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 134 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:28:29,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-10-14 20:28:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 269. [2024-10-14 20:28:29,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 188 states have (on average 1.6542553191489362) internal successors, (311), 243 states have internal predecessors, (311), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:29,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 357 transitions. [2024-10-14 20:28:29,342 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 357 transitions. Word has length 28 [2024-10-14 20:28:29,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:29,342 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 357 transitions. [2024-10-14 20:28:29,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:29,343 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 357 transitions. [2024-10-14 20:28:29,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 20:28:29,346 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:29,346 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:29,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:28:29,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:29,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:29,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:29,547 INFO L85 PathProgramCache]: Analyzing trace with hash 871631827, now seen corresponding path program 1 times [2024-10-14 20:28:29,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:29,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686856188] [2024-10-14 20:28:29,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:29,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:29,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842087628] [2024-10-14 20:28:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:29,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:29,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:29,565 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:29,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:28:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:29,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:29,624 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:29,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:29,671 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:29,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:29,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686856188] [2024-10-14 20:28:29,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:29,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842087628] [2024-10-14 20:28:29,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842087628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:29,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:29,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:29,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522193212] [2024-10-14 20:28:29,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:29,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:29,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:29,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:29,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:29,673 INFO L87 Difference]: Start difference. First operand 269 states and 357 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:30,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:30,374 INFO L93 Difference]: Finished difference Result 342 states and 430 transitions. [2024-10-14 20:28:30,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:30,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2024-10-14 20:28:30,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:30,376 INFO L225 Difference]: With dead ends: 342 [2024-10-14 20:28:30,376 INFO L226 Difference]: Without dead ends: 340 [2024-10-14 20:28:30,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:30,377 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 85 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:30,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 206 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:28:30,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-14 20:28:30,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 270. [2024-10-14 20:28:30,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 189 states have (on average 1.6349206349206349) internal successors, (309), 244 states have internal predecessors, (309), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:30,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 355 transitions. [2024-10-14 20:28:30,391 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 355 transitions. Word has length 29 [2024-10-14 20:28:30,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:30,392 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 355 transitions. [2024-10-14 20:28:30,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:30,392 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 355 transitions. [2024-10-14 20:28:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-14 20:28:30,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:30,392 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:30,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:28:30,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:30,593 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:30,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:30,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1250782930, now seen corresponding path program 1 times [2024-10-14 20:28:30,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:30,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900240365] [2024-10-14 20:28:30,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:30,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063619459] [2024-10-14 20:28:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:30,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:30,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:30,623 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) [2024-10-14 20:28:30,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:28:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:30,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:30,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:28:30,760 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:30,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:30,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900240365] [2024-10-14 20:28:30,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:30,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063619459] [2024-10-14 20:28:30,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063619459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:30,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:30,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:30,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774127284] [2024-10-14 20:28:30,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:30,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:30,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:30,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:30,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:30,767 INFO L87 Difference]: Start difference. First operand 270 states and 355 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:31,586 INFO L93 Difference]: Finished difference Result 342 states and 426 transitions. [2024-10-14 20:28:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-10-14 20:28:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:31,588 INFO L225 Difference]: With dead ends: 342 [2024-10-14 20:28:31,588 INFO L226 Difference]: Without dead ends: 340 [2024-10-14 20:28:31,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:31,589 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 140 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:31,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 163 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 20:28:31,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-14 20:28:31,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 271. [2024-10-14 20:28:31,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 190 states have (on average 1.6157894736842104) internal successors, (307), 245 states have internal predecessors, (307), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:31,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 353 transitions. [2024-10-14 20:28:31,601 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 353 transitions. Word has length 30 [2024-10-14 20:28:31,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:31,601 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 353 transitions. [2024-10-14 20:28:31,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:28:31,602 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 353 transitions. [2024-10-14 20:28:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:28:31,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:31,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:31,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:31,806 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,SelfDestructingSolverStorable8 [2024-10-14 20:28:31,807 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:31,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash 2117852475, now seen corresponding path program 1 times [2024-10-14 20:28:31,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:31,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678414077] [2024-10-14 20:28:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:31,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:31,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636333634] [2024-10-14 20:28:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:31,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:31,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:31,825 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) [2024-10-14 20:28:31,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:28:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:31,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:31,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:28:31,968 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:31,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:31,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678414077] [2024-10-14 20:28:31,968 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:31,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636333634] [2024-10-14 20:28:31,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636333634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:31,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:31,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:31,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645235441] [2024-10-14 20:28:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:31,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:31,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:31,970 INFO L87 Difference]: Start difference. First operand 271 states and 353 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:32,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:32,226 INFO L93 Difference]: Finished difference Result 293 states and 372 transitions. [2024-10-14 20:28:32,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:32,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-10-14 20:28:32,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:32,229 INFO L225 Difference]: With dead ends: 293 [2024-10-14 20:28:32,229 INFO L226 Difference]: Without dead ends: 291 [2024-10-14 20:28:32,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:32,230 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 209 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:32,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 144 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:28:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-14 20:28:32,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 272. [2024-10-14 20:28:32,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 191 states have (on average 1.6020942408376964) internal successors, (306), 246 states have internal predecessors, (306), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 352 transitions. [2024-10-14 20:28:32,241 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 352 transitions. Word has length 38 [2024-10-14 20:28:32,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:32,241 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 352 transitions. [2024-10-14 20:28:32,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:32,241 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 352 transitions. [2024-10-14 20:28:32,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:28:32,242 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:32,242 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:32,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:28:32,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 20:28:32,443 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:32,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:32,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1228917363, now seen corresponding path program 1 times [2024-10-14 20:28:32,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:32,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936494232] [2024-10-14 20:28:32,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:32,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:32,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220211337] [2024-10-14 20:28:32,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:32,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:32,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:32,475 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:32,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:28:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:32,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:32,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:28:32,598 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:32,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:32,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936494232] [2024-10-14 20:28:32,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220211337] [2024-10-14 20:28:32,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220211337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:32,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:32,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754719772] [2024-10-14 20:28:32,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:32,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:32,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:32,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:32,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:32,601 INFO L87 Difference]: Start difference. First operand 272 states and 352 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:32,965 INFO L93 Difference]: Finished difference Result 293 states and 369 transitions. [2024-10-14 20:28:32,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:32,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-10-14 20:28:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:32,967 INFO L225 Difference]: With dead ends: 293 [2024-10-14 20:28:32,967 INFO L226 Difference]: Without dead ends: 291 [2024-10-14 20:28:32,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:32,968 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 154 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:32,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 158 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:28:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-10-14 20:28:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 273. [2024-10-14 20:28:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 192 states have (on average 1.5885416666666667) internal successors, (305), 247 states have internal predecessors, (305), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 351 transitions. [2024-10-14 20:28:32,980 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 351 transitions. Word has length 39 [2024-10-14 20:28:32,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:32,981 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 351 transitions. [2024-10-14 20:28:32,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:32,981 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 351 transitions. [2024-10-14 20:28:32,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 20:28:32,982 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:32,982 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:32,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:33,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 20:28:33,183 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:33,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:33,183 INFO L85 PathProgramCache]: Analyzing trace with hash -558267331, now seen corresponding path program 1 times [2024-10-14 20:28:33,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:33,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707800045] [2024-10-14 20:28:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:33,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:33,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665072436] [2024-10-14 20:28:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:33,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:33,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:33,212 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:33,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:28:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:33,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:33,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:33,293 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:28:33,293 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:33,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:33,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707800045] [2024-10-14 20:28:33,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:33,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665072436] [2024-10-14 20:28:33,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665072436] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:33,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:33,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:33,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393115757] [2024-10-14 20:28:33,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:33,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:33,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:33,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:33,295 INFO L87 Difference]: Start difference. First operand 273 states and 351 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:33,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:33,953 INFO L93 Difference]: Finished difference Result 301 states and 358 transitions. [2024-10-14 20:28:33,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:33,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-14 20:28:33,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:33,955 INFO L225 Difference]: With dead ends: 301 [2024-10-14 20:28:33,955 INFO L226 Difference]: Without dead ends: 299 [2024-10-14 20:28:33,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:33,956 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 77 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:33,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 234 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:28:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-14 20:28:33,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 274. [2024-10-14 20:28:33,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 193 states have (on average 1.5751295336787565) internal successors, (304), 248 states have internal predecessors, (304), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:33,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 350 transitions. [2024-10-14 20:28:33,967 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 350 transitions. Word has length 40 [2024-10-14 20:28:33,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:33,968 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 350 transitions. [2024-10-14 20:28:33,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 350 transitions. [2024-10-14 20:28:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:28:33,969 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:33,969 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:33,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 20:28:34,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-14 20:28:34,170 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:34,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:34,171 INFO L85 PathProgramCache]: Analyzing trace with hash -126417995, now seen corresponding path program 1 times [2024-10-14 20:28:34,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:34,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31535963] [2024-10-14 20:28:34,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:34,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:34,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1893824822] [2024-10-14 20:28:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:34,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:34,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:34,190 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:34,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:28:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:34,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:34,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 20:28:34,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:34,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:34,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31535963] [2024-10-14 20:28:34,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:34,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893824822] [2024-10-14 20:28:34,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893824822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:34,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:34,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:34,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442662807] [2024-10-14 20:28:34,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:34,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:34,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:34,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:34,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:34,337 INFO L87 Difference]: Start difference. First operand 274 states and 350 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:35,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:35,410 INFO L93 Difference]: Finished difference Result 301 states and 355 transitions. [2024-10-14 20:28:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-14 20:28:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:35,412 INFO L225 Difference]: With dead ends: 301 [2024-10-14 20:28:35,412 INFO L226 Difference]: Without dead ends: 299 [2024-10-14 20:28:35,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:35,413 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 77 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:35,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 237 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 20:28:35,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-10-14 20:28:35,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 275. [2024-10-14 20:28:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 194 states have (on average 1.5618556701030928) internal successors, (303), 249 states have internal predecessors, (303), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 349 transitions. [2024-10-14 20:28:35,424 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 349 transitions. Word has length 41 [2024-10-14 20:28:35,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:35,424 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 349 transitions. [2024-10-14 20:28:35,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:28:35,425 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 349 transitions. [2024-10-14 20:28:35,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 20:28:35,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:35,426 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:35,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:35,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 20:28:35,627 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:35,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:35,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1379107115, now seen corresponding path program 1 times [2024-10-14 20:28:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:35,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123564273] [2024-10-14 20:28:35,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:35,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:28:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:28:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:28:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,723 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:28:35,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:35,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123564273] [2024-10-14 20:28:35,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123564273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:35,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:35,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:35,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584317390] [2024-10-14 20:28:35,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:35,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:28:35,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:35,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:28:35,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:35,728 INFO L87 Difference]: Start difference. First operand 275 states and 349 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 20:28:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:35,796 INFO L93 Difference]: Finished difference Result 275 states and 349 transitions. [2024-10-14 20:28:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:35,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 48 [2024-10-14 20:28:35,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:35,798 INFO L225 Difference]: With dead ends: 275 [2024-10-14 20:28:35,798 INFO L226 Difference]: Without dead ends: 273 [2024-10-14 20:28:35,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:35,799 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 46 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:35,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 196 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:28:35,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-14 20:28:35,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-10-14 20:28:35,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 194 states have (on average 1.5309278350515463) internal successors, (297), 247 states have internal predecessors, (297), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 343 transitions. [2024-10-14 20:28:35,810 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 343 transitions. Word has length 48 [2024-10-14 20:28:35,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:35,811 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 343 transitions. [2024-10-14 20:28:35,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 20:28:35,811 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 343 transitions. [2024-10-14 20:28:35,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 20:28:35,812 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:35,812 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:35,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 20:28:35,813 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:35,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:35,813 INFO L85 PathProgramCache]: Analyzing trace with hash 197352520, now seen corresponding path program 1 times [2024-10-14 20:28:35,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:35,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868383599] [2024-10-14 20:28:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:35,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:28:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:28:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:28:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:28:35,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:35,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868383599] [2024-10-14 20:28:35,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868383599] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:35,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:35,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:35,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573877031] [2024-10-14 20:28:35,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:35,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:28:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:35,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:28:35,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:35,890 INFO L87 Difference]: Start difference. First operand 273 states and 343 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 20:28:35,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:35,927 INFO L93 Difference]: Finished difference Result 273 states and 343 transitions. [2024-10-14 20:28:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:35,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 49 [2024-10-14 20:28:35,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:35,929 INFO L225 Difference]: With dead ends: 273 [2024-10-14 20:28:35,929 INFO L226 Difference]: Without dead ends: 271 [2024-10-14 20:28:35,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:35,930 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 45 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:35,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 195 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:28:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-10-14 20:28:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-10-14 20:28:35,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 194 states have (on average 1.4896907216494846) internal successors, (289), 245 states have internal predecessors, (289), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 335 transitions. [2024-10-14 20:28:35,941 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 335 transitions. Word has length 49 [2024-10-14 20:28:35,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:35,942 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 335 transitions. [2024-10-14 20:28:35,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-14 20:28:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 335 transitions. [2024-10-14 20:28:35,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 20:28:35,943 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:35,943 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:35,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 20:28:35,943 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:35,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:35,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1823002659, now seen corresponding path program 1 times [2024-10-14 20:28:35,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:35,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115477057] [2024-10-14 20:28:35,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:35,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:36,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:36,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:36,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:28:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:36,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:28:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:36,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:28:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:36,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 20:28:36,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:36,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115477057] [2024-10-14 20:28:36,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115477057] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:36,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145972126] [2024-10-14 20:28:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:36,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:36,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:36,142 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:36,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:28:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:36,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:28:36,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:36,331 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 20:28:36,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:36,474 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 20:28:36,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145972126] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:28:36,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:28:36,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-14 20:28:36,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215655621] [2024-10-14 20:28:36,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:36,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:28:36,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:36,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:28:36,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:28:36,476 INFO L87 Difference]: Start difference. First operand 271 states and 335 transitions. Second operand has 13 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 8 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 6 states have call predecessors, (15), 8 states have call successors, (15) [2024-10-14 20:28:37,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:37,007 INFO L93 Difference]: Finished difference Result 335 states and 392 transitions. [2024-10-14 20:28:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:28:37,007 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 8 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 6 states have call predecessors, (15), 8 states have call successors, (15) Word has length 50 [2024-10-14 20:28:37,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:37,009 INFO L225 Difference]: With dead ends: 335 [2024-10-14 20:28:37,009 INFO L226 Difference]: Without dead ends: 334 [2024-10-14 20:28:37,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:28:37,010 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 642 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:37,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 272 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:28:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-10-14 20:28:37,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 271. [2024-10-14 20:28:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 194 states have (on average 1.4793814432989691) internal successors, (287), 245 states have internal predecessors, (287), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 333 transitions. [2024-10-14 20:28:37,026 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 333 transitions. Word has length 50 [2024-10-14 20:28:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:37,027 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 333 transitions. [2024-10-14 20:28:37,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 8 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 6 states have call predecessors, (15), 8 states have call successors, (15) [2024-10-14 20:28:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 333 transitions. [2024-10-14 20:28:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 20:28:37,028 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:37,028 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:37,045 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:28:37,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:28:37,229 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:37,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:37,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1822988757, now seen corresponding path program 1 times [2024-10-14 20:28:37,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:37,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990411852] [2024-10-14 20:28:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:37,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:28:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:28:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:28:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-14 20:28:37,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:37,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990411852] [2024-10-14 20:28:37,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990411852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:37,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:37,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:28:37,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998627250] [2024-10-14 20:28:37,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:37,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:28:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:28:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:28:37,356 INFO L87 Difference]: Start difference. First operand 271 states and 333 transitions. Second operand has 7 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:37,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:37,898 INFO L93 Difference]: Finished difference Result 274 states and 336 transitions. [2024-10-14 20:28:37,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:28:37,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-10-14 20:28:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:37,900 INFO L225 Difference]: With dead ends: 274 [2024-10-14 20:28:37,900 INFO L226 Difference]: Without dead ends: 273 [2024-10-14 20:28:37,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:28:37,901 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 276 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:37,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 259 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:28:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-14 20:28:37,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-10-14 20:28:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 196 states have (on average 1.4744897959183674) internal successors, (289), 247 states have internal predecessors, (289), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 335 transitions. [2024-10-14 20:28:37,915 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 335 transitions. Word has length 50 [2024-10-14 20:28:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:37,915 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 335 transitions. [2024-10-14 20:28:37,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:37,915 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 335 transitions. [2024-10-14 20:28:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 20:28:37,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:37,916 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:37,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 20:28:37,916 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:37,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:37,917 INFO L85 PathProgramCache]: Analyzing trace with hash -789133362, now seen corresponding path program 1 times [2024-10-14 20:28:37,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:37,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423756128] [2024-10-14 20:28:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:37,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:37,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:38,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:28:38,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:38,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:28:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:38,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:28:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:28:38,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:38,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423756128] [2024-10-14 20:28:38,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423756128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:38,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:38,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:28:38,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012099193] [2024-10-14 20:28:38,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:38,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:28:38,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:38,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:28:38,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:38,022 INFO L87 Difference]: Start difference. First operand 273 states and 335 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:38,229 INFO L93 Difference]: Finished difference Result 329 states and 403 transitions. [2024-10-14 20:28:38,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:38,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2024-10-14 20:28:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:38,231 INFO L225 Difference]: With dead ends: 329 [2024-10-14 20:28:38,232 INFO L226 Difference]: Without dead ends: 325 [2024-10-14 20:28:38,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:28:38,232 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 42 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:38,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 136 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:28:38,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-10-14 20:28:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 283. [2024-10-14 20:28:38,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 206 states have (on average 1.4563106796116505) internal successors, (300), 257 states have internal predecessors, (300), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:38,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2024-10-14 20:28:38,247 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 53 [2024-10-14 20:28:38,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:38,247 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2024-10-14 20:28:38,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:38,247 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2024-10-14 20:28:38,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-14 20:28:38,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:38,248 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:38,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 20:28:38,248 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:38,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1579104809, now seen corresponding path program 1 times [2024-10-14 20:28:38,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:38,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044192233] [2024-10-14 20:28:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:38,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:38,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009828645] [2024-10-14 20:28:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:38,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:38,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:38,264 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:38,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:28:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:38,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:28:38,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:28:38,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:38,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:38,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044192233] [2024-10-14 20:28:38,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:38,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009828645] [2024-10-14 20:28:38,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009828645] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:38,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:38,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-10-14 20:28:38,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280878221] [2024-10-14 20:28:38,637 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:38,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:38,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:38,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:38,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:28:38,638 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:39,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:39,125 INFO L93 Difference]: Finished difference Result 323 states and 397 transitions. [2024-10-14 20:28:39,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:39,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2024-10-14 20:28:39,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:39,127 INFO L225 Difference]: With dead ends: 323 [2024-10-14 20:28:39,128 INFO L226 Difference]: Without dead ends: 321 [2024-10-14 20:28:39,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:28:39,129 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 35 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:39,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 171 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:28:39,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-14 20:28:39,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 284. [2024-10-14 20:28:39,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 207 states have (on average 1.4492753623188406) internal successors, (300), 258 states have internal predecessors, (300), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:39,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 346 transitions. [2024-10-14 20:28:39,144 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 346 transitions. Word has length 56 [2024-10-14 20:28:39,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:39,144 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 346 transitions. [2024-10-14 20:28:39,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:39,144 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 346 transitions. [2024-10-14 20:28:39,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 20:28:39,145 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:39,145 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:39,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 20:28:39,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:39,346 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:39,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1707608871, now seen corresponding path program 1 times [2024-10-14 20:28:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:39,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988876219] [2024-10-14 20:28:39,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:39,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:39,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [871187994] [2024-10-14 20:28:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:39,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:39,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:39,360 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:39,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:28:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:39,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:28:39,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:28:39,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:40,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:40,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988876219] [2024-10-14 20:28:40,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:40,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871187994] [2024-10-14 20:28:40,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871187994] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:40,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:40,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-10-14 20:28:40,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397610155] [2024-10-14 20:28:40,074 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:40,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:40,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:40,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:40,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:28:40,076 INFO L87 Difference]: Start difference. First operand 284 states and 346 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:40,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:40,350 INFO L93 Difference]: Finished difference Result 323 states and 395 transitions. [2024-10-14 20:28:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:28:40,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2024-10-14 20:28:40,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:40,352 INFO L225 Difference]: With dead ends: 323 [2024-10-14 20:28:40,352 INFO L226 Difference]: Without dead ends: 321 [2024-10-14 20:28:40,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:28:40,352 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 70 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:40,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 130 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:28:40,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-14 20:28:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 285. [2024-10-14 20:28:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 208 states have (on average 1.4423076923076923) internal successors, (300), 259 states have internal predecessors, (300), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 346 transitions. [2024-10-14 20:28:40,367 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 346 transitions. Word has length 57 [2024-10-14 20:28:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:40,367 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 346 transitions. [2024-10-14 20:28:40,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 346 transitions. [2024-10-14 20:28:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 20:28:40,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:40,368 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:40,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:40,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:40,569 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:40,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1594887195, now seen corresponding path program 1 times [2024-10-14 20:28:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:40,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589783729] [2024-10-14 20:28:40,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:40,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:28:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:28:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:28:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 20:28:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 20:28:40,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:40,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589783729] [2024-10-14 20:28:40,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589783729] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:40,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971104807] [2024-10-14 20:28:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:40,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:40,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:40,719 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:40,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 20:28:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:40,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:28:40,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:40,973 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 20:28:40,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:40,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971104807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:40,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:40,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:28:40,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28193845] [2024-10-14 20:28:40,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:40,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:40,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:40,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:40,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:28:40,976 INFO L87 Difference]: Start difference. First operand 285 states and 346 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:41,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:41,487 INFO L93 Difference]: Finished difference Result 321 states and 393 transitions. [2024-10-14 20:28:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:28:41,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 61 [2024-10-14 20:28:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:41,490 INFO L225 Difference]: With dead ends: 321 [2024-10-14 20:28:41,490 INFO L226 Difference]: Without dead ends: 320 [2024-10-14 20:28:41,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:28:41,491 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 62 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:41,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 120 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:28:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-10-14 20:28:41,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 286. [2024-10-14 20:28:41,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.4354066985645932) internal successors, (300), 260 states have internal predecessors, (300), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:41,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 346 transitions. [2024-10-14 20:28:41,506 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 346 transitions. Word has length 61 [2024-10-14 20:28:41,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:41,506 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 346 transitions. [2024-10-14 20:28:41,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:41,507 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 346 transitions. [2024-10-14 20:28:41,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 20:28:41,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:41,507 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:41,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 20:28:41,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:41,708 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:41,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1783271853, now seen corresponding path program 1 times [2024-10-14 20:28:41,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:41,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649817535] [2024-10-14 20:28:41,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:41,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:41,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186637735] [2024-10-14 20:28:41,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:41,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:41,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:41,731 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:41,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:28:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:41,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:41,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 20:28:41,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:41,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:41,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649817535] [2024-10-14 20:28:41,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:41,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186637735] [2024-10-14 20:28:41,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186637735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:41,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:41,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:41,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916885054] [2024-10-14 20:28:41,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:41,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:41,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:41,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:41,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:41,847 INFO L87 Difference]: Start difference. First operand 286 states and 346 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:42,264 INFO L93 Difference]: Finished difference Result 336 states and 391 transitions. [2024-10-14 20:28:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:42,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-10-14 20:28:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:42,266 INFO L225 Difference]: With dead ends: 336 [2024-10-14 20:28:42,266 INFO L226 Difference]: Without dead ends: 335 [2024-10-14 20:28:42,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:42,267 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 108 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:42,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 157 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:28:42,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-10-14 20:28:42,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 286. [2024-10-14 20:28:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 209 states have (on average 1.430622009569378) internal successors, (299), 260 states have internal predecessors, (299), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:42,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 345 transitions. [2024-10-14 20:28:42,285 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 345 transitions. Word has length 60 [2024-10-14 20:28:42,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:42,285 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 345 transitions. [2024-10-14 20:28:42,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 345 transitions. [2024-10-14 20:28:42,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-14 20:28:42,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:42,286 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:42,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-14 20:28:42,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:42,487 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:42,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:42,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2098104649, now seen corresponding path program 1 times [2024-10-14 20:28:42,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:42,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499133381] [2024-10-14 20:28:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:42,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:28:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:28:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:28:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:28:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:28:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 20:28:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,632 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-14 20:28:42,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:42,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499133381] [2024-10-14 20:28:42,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499133381] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:42,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135850521] [2024-10-14 20:28:42,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:42,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:42,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:42,635 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:42,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 20:28:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:42,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:28:42,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 20:28:42,901 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:42,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135850521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:42,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:42,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-14 20:28:42,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223421455] [2024-10-14 20:28:42,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:42,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:42,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:42,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:42,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:28:42,902 INFO L87 Difference]: Start difference. First operand 286 states and 345 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:43,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:43,424 INFO L93 Difference]: Finished difference Result 321 states and 390 transitions. [2024-10-14 20:28:43,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:43,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2024-10-14 20:28:43,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:43,426 INFO L225 Difference]: With dead ends: 321 [2024-10-14 20:28:43,426 INFO L226 Difference]: Without dead ends: 320 [2024-10-14 20:28:43,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:28:43,427 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 59 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:43,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 126 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:28:43,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-10-14 20:28:43,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 287. [2024-10-14 20:28:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 210 states have (on average 1.4238095238095239) internal successors, (299), 261 states have internal predecessors, (299), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:43,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 345 transitions. [2024-10-14 20:28:43,441 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 345 transitions. Word has length 62 [2024-10-14 20:28:43,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:43,442 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 345 transitions. [2024-10-14 20:28:43,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:43,442 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 345 transitions. [2024-10-14 20:28:43,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 20:28:43,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:43,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:43,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-14 20:28:43,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:43,643 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:43,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:43,643 INFO L85 PathProgramCache]: Analyzing trace with hash -553147349, now seen corresponding path program 1 times [2024-10-14 20:28:43,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:43,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491828872] [2024-10-14 20:28:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:43,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:43,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515380226] [2024-10-14 20:28:43,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:43,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:43,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:43,660 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:43,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-14 20:28:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:43,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:28:43,708 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 20:28:43,857 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:28:43,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:43,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491828872] [2024-10-14 20:28:43,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:43,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515380226] [2024-10-14 20:28:43,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515380226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:28:43,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:28:43,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:28:43,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286185741] [2024-10-14 20:28:43,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:28:43,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:28:43,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:43,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:28:43,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:43,859 INFO L87 Difference]: Start difference. First operand 287 states and 345 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:44,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:44,581 INFO L93 Difference]: Finished difference Result 338 states and 388 transitions. [2024-10-14 20:28:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:28:44,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-10-14 20:28:44,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:44,582 INFO L225 Difference]: With dead ends: 338 [2024-10-14 20:28:44,582 INFO L226 Difference]: Without dead ends: 335 [2024-10-14 20:28:44,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:28:44,583 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 73 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:44,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 203 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:28:44,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-10-14 20:28:44,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 290. [2024-10-14 20:28:44,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 213 states have (on average 1.4178403755868545) internal successors, (302), 264 states have internal predecessors, (302), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-14 20:28:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 348 transitions. [2024-10-14 20:28:44,604 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 348 transitions. Word has length 61 [2024-10-14 20:28:44,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:44,605 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 348 transitions. [2024-10-14 20:28:44,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:28:44,605 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 348 transitions. [2024-10-14 20:28:44,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-14 20:28:44,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:44,606 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:44,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:44,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:44,806 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:44,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:44,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1530351447, now seen corresponding path program 1 times [2024-10-14 20:28:44,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:44,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819562028] [2024-10-14 20:28:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:44,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:44,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726501849] [2024-10-14 20:28:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:44,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:44,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:44,826 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:44,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-14 20:28:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:44,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:28:44,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-14 20:28:45,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:46,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:46,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819562028] [2024-10-14 20:28:46,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:46,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726501849] [2024-10-14 20:28:46,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726501849] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:46,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:46,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:28:46,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966060218] [2024-10-14 20:28:46,683 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:46,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:28:46,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:46,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:28:46,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-10-14 20:28:46,684 INFO L87 Difference]: Start difference. First operand 290 states and 348 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:47,172 INFO L93 Difference]: Finished difference Result 473 states and 596 transitions. [2024-10-14 20:28:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:28:47,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 67 [2024-10-14 20:28:47,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:47,174 INFO L225 Difference]: With dead ends: 473 [2024-10-14 20:28:47,174 INFO L226 Difference]: Without dead ends: 469 [2024-10-14 20:28:47,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-10-14 20:28:47,175 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 510 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:47,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 271 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:28:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-10-14 20:28:47,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 366. [2024-10-14 20:28:47,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 280 states have (on average 1.457142857142857) internal successors, (408), 331 states have internal predecessors, (408), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 20:28:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 472 transitions. [2024-10-14 20:28:47,199 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 472 transitions. Word has length 67 [2024-10-14 20:28:47,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:47,200 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 472 transitions. [2024-10-14 20:28:47,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:47,200 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 472 transitions. [2024-10-14 20:28:47,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-14 20:28:47,201 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:47,201 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:47,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:47,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-14 20:28:47,402 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:47,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:47,402 INFO L85 PathProgramCache]: Analyzing trace with hash 196254662, now seen corresponding path program 1 times [2024-10-14 20:28:47,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:47,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512324939] [2024-10-14 20:28:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:47,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:47,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [278984290] [2024-10-14 20:28:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:47,422 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:47,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-14 20:28:47,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:47,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:28:47,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-14 20:28:47,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:48,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:48,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512324939] [2024-10-14 20:28:48,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:48,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278984290] [2024-10-14 20:28:48,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278984290] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:48,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:48,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:28:48,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622229943] [2024-10-14 20:28:48,324 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:48,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:28:48,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:48,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:28:48,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:28:48,326 INFO L87 Difference]: Start difference. First operand 366 states and 472 transitions. Second operand has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:48,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:48,790 INFO L93 Difference]: Finished difference Result 395 states and 497 transitions. [2024-10-14 20:28:48,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:28:48,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-10-14 20:28:48,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:48,793 INFO L225 Difference]: With dead ends: 395 [2024-10-14 20:28:48,793 INFO L226 Difference]: Without dead ends: 389 [2024-10-14 20:28:48,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:28:48,793 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 139 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:48,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 382 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:28:48,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-10-14 20:28:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 360. [2024-10-14 20:28:48,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 280 states have (on average 1.4035714285714285) internal successors, (393), 325 states have internal predecessors, (393), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-14 20:28:48,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 457 transitions. [2024-10-14 20:28:48,812 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 457 transitions. Word has length 68 [2024-10-14 20:28:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:48,812 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 457 transitions. [2024-10-14 20:28:48,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 457 transitions. [2024-10-14 20:28:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-14 20:28:48,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:48,813 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:48,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:49,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-14 20:28:49,018 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:49,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:49,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1788927289, now seen corresponding path program 1 times [2024-10-14 20:28:49,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:49,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671726234] [2024-10-14 20:28:49,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:49,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:49,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1308704739] [2024-10-14 20:28:49,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:49,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:49,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:49,051 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:49,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-14 20:28:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:49,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:28:49,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-14 20:28:49,526 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:49,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:49,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671726234] [2024-10-14 20:28:49,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:49,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308704739] [2024-10-14 20:28:49,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308704739] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:49,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:49,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:28:49,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204260037] [2024-10-14 20:28:49,679 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:49,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:28:49,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:49,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:28:49,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:28:49,680 INFO L87 Difference]: Start difference. First operand 360 states and 457 transitions. Second operand has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:50,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:50,597 INFO L93 Difference]: Finished difference Result 503 states and 662 transitions. [2024-10-14 20:28:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:28:50,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2024-10-14 20:28:50,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:50,599 INFO L225 Difference]: With dead ends: 503 [2024-10-14 20:28:50,599 INFO L226 Difference]: Without dead ends: 496 [2024-10-14 20:28:50,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:28:50,600 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 427 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:50,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 243 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 20:28:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-10-14 20:28:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 453. [2024-10-14 20:28:50,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 363 states have (on average 1.4517906336088153) internal successors, (527), 408 states have internal predecessors, (527), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-14 20:28:50,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 611 transitions. [2024-10-14 20:28:50,624 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 611 transitions. Word has length 69 [2024-10-14 20:28:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:50,624 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 611 transitions. [2024-10-14 20:28:50,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 611 transitions. [2024-10-14 20:28:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-14 20:28:50,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:50,625 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:50,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:50,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-14 20:28:50,826 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:50,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash -377828824, now seen corresponding path program 1 times [2024-10-14 20:28:50,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:50,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025392225] [2024-10-14 20:28:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045149220] [2024-10-14 20:28:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:50,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:50,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:50,844 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:50,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-14 20:28:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:50,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:28:50,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:51,258 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-14 20:28:51,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:51,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025392225] [2024-10-14 20:28:51,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:51,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045149220] [2024-10-14 20:28:51,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045149220] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:51,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:51,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:28:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219720328] [2024-10-14 20:28:51,789 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:51,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:28:51,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:51,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:28:51,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:28:51,790 INFO L87 Difference]: Start difference. First operand 453 states and 611 transitions. Second operand has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:52,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:52,921 INFO L93 Difference]: Finished difference Result 555 states and 746 transitions. [2024-10-14 20:28:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:28:52,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 70 [2024-10-14 20:28:52,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:52,923 INFO L225 Difference]: With dead ends: 555 [2024-10-14 20:28:52,923 INFO L226 Difference]: Without dead ends: 553 [2024-10-14 20:28:52,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:28:52,924 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 396 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 963 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:52,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 285 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 963 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 20:28:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-10-14 20:28:52,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 488. [2024-10-14 20:28:52,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 394 states have (on average 1.4467005076142132) internal successors, (570), 439 states have internal predecessors, (570), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-10-14 20:28:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 662 transitions. [2024-10-14 20:28:52,948 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 662 transitions. Word has length 70 [2024-10-14 20:28:52,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:52,948 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 662 transitions. [2024-10-14 20:28:52,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:52,949 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 662 transitions. [2024-10-14 20:28:52,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-14 20:28:52,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:52,949 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:52,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:53,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:53,154 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:53,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1172208411, now seen corresponding path program 1 times [2024-10-14 20:28:53,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:53,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133026227] [2024-10-14 20:28:53,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:53,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:53,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718249165] [2024-10-14 20:28:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:53,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:53,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:53,169 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:53,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-14 20:28:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:53,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-14 20:28:53,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:53,663 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-14 20:28:53,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:53,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:53,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133026227] [2024-10-14 20:28:53,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:53,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718249165] [2024-10-14 20:28:53,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718249165] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:53,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:53,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-14 20:28:53,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950129092] [2024-10-14 20:28:53,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:53,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:28:53,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:53,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:28:53,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:28:53,803 INFO L87 Difference]: Start difference. First operand 488 states and 662 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:55,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:55,091 INFO L93 Difference]: Finished difference Result 556 states and 740 transitions. [2024-10-14 20:28:55,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 20:28:55,092 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 71 [2024-10-14 20:28:55,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:55,093 INFO L225 Difference]: With dead ends: 556 [2024-10-14 20:28:55,093 INFO L226 Difference]: Without dead ends: 502 [2024-10-14 20:28:55,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:28:55,094 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 337 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 1679 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:55,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 335 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1679 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 20:28:55,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-10-14 20:28:55,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 404. [2024-10-14 20:28:55,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 320 states have (on average 1.45625) internal successors, (466), 365 states have internal predecessors, (466), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-14 20:28:55,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 538 transitions. [2024-10-14 20:28:55,116 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 538 transitions. Word has length 71 [2024-10-14 20:28:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:55,117 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 538 transitions. [2024-10-14 20:28:55,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:55,117 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 538 transitions. [2024-10-14 20:28:55,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 20:28:55,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:55,118 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:55,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:55,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-14 20:28:55,322 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:55,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:55,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1978722442, now seen corresponding path program 1 times [2024-10-14 20:28:55,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:55,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305895949] [2024-10-14 20:28:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:55,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:55,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988349424] [2024-10-14 20:28:55,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:55,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:55,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:55,334 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:55,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-14 20:28:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:55,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:28:55,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:55,644 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-14 20:28:55,644 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:55,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:55,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305895949] [2024-10-14 20:28:55,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:55,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988349424] [2024-10-14 20:28:55,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988349424] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:55,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:55,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:28:55,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226617603] [2024-10-14 20:28:55,948 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:55,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:28:55,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:55,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:28:55,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:28:55,949 INFO L87 Difference]: Start difference. First operand 404 states and 538 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:56,947 INFO L93 Difference]: Finished difference Result 454 states and 609 transitions. [2024-10-14 20:28:56,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:28:56,947 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 72 [2024-10-14 20:28:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:56,949 INFO L225 Difference]: With dead ends: 454 [2024-10-14 20:28:56,949 INFO L226 Difference]: Without dead ends: 450 [2024-10-14 20:28:56,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:28:56,950 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 182 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:56,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 332 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 20:28:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-10-14 20:28:56,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 437. [2024-10-14 20:28:56,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 353 states have (on average 1.4447592067988668) internal successors, (510), 395 states have internal predecessors, (510), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-10-14 20:28:56,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 588 transitions. [2024-10-14 20:28:56,973 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 588 transitions. Word has length 72 [2024-10-14 20:28:56,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:56,973 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 588 transitions. [2024-10-14 20:28:56,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:28:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 588 transitions. [2024-10-14 20:28:56,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-14 20:28:56,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:56,974 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:56,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-10-14 20:28:57,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:57,179 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:57,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:57,179 INFO L85 PathProgramCache]: Analyzing trace with hash -328157505, now seen corresponding path program 1 times [2024-10-14 20:28:57,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:57,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521564447] [2024-10-14 20:28:57,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:57,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:57,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139223752] [2024-10-14 20:28:57,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:57,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:57,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:57,198 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:57,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-14 20:28:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:57,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:28:57,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 20:28:57,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:28:58,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:28:58,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521564447] [2024-10-14 20:28:58,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:28:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139223752] [2024-10-14 20:28:58,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139223752] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:28:58,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:28:58,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:28:58,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506584778] [2024-10-14 20:28:58,994 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:28:58,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:28:58,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:28:58,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:28:58,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-10-14 20:28:58,996 INFO L87 Difference]: Start difference. First operand 437 states and 588 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 20:28:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:28:59,429 INFO L93 Difference]: Finished difference Result 708 states and 994 transitions. [2024-10-14 20:28:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:28:59,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 78 [2024-10-14 20:28:59,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:28:59,433 INFO L225 Difference]: With dead ends: 708 [2024-10-14 20:28:59,433 INFO L226 Difference]: Without dead ends: 706 [2024-10-14 20:28:59,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-10-14 20:28:59,434 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 346 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:28:59,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 253 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:28:59,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-10-14 20:28:59,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 660. [2024-10-14 20:28:59,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 550 states have (on average 1.4672727272727273) internal successors, (807), 592 states have internal predecessors, (807), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-10-14 20:28:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 937 transitions. [2024-10-14 20:28:59,471 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 937 transitions. Word has length 78 [2024-10-14 20:28:59,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:28:59,471 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 937 transitions. [2024-10-14 20:28:59,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 20:28:59,472 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 937 transitions. [2024-10-14 20:28:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-14 20:28:59,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:28:59,473 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:28:59,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-10-14 20:28:59,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-10-14 20:28:59,673 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:28:59,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:28:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1582947989, now seen corresponding path program 1 times [2024-10-14 20:28:59,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:28:59,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620877285] [2024-10-14 20:28:59,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:59,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:28:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:28:59,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [101671810] [2024-10-14 20:28:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:28:59,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:28:59,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:28:59,690 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:28:59,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-14 20:28:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:28:59,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 20:28:59,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:28:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 20:28:59,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:01,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:01,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620877285] [2024-10-14 20:29:01,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:01,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101671810] [2024-10-14 20:29:01,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101671810] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:01,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:01,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:29:01,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929113759] [2024-10-14 20:29:01,753 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:01,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:29:01,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:01,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:29:01,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2024-10-14 20:29:01,754 INFO L87 Difference]: Start difference. First operand 660 states and 937 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 20:29:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:02,020 INFO L93 Difference]: Finished difference Result 663 states and 937 transitions. [2024-10-14 20:29:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:29:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 79 [2024-10-14 20:29:02,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:02,023 INFO L225 Difference]: With dead ends: 663 [2024-10-14 20:29:02,023 INFO L226 Difference]: Without dead ends: 657 [2024-10-14 20:29:02,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=33, Invalid=76, Unknown=1, NotChecked=0, Total=110 [2024-10-14 20:29:02,023 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 120 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:02,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 297 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:29:02,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2024-10-14 20:29:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 531. [2024-10-14 20:29:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 440 states have (on average 1.3681818181818182) internal successors, (602), 476 states have internal predecessors, (602), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 20:29:02,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 706 transitions. [2024-10-14 20:29:02,055 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 706 transitions. Word has length 79 [2024-10-14 20:29:02,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:02,056 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 706 transitions. [2024-10-14 20:29:02,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 20:29:02,056 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 706 transitions. [2024-10-14 20:29:02,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-14 20:29:02,057 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:02,057 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:02,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-10-14 20:29:02,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:02,258 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:02,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1137445315, now seen corresponding path program 1 times [2024-10-14 20:29:02,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:02,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532310610] [2024-10-14 20:29:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:02,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:02,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42488033] [2024-10-14 20:29:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:02,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:02,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:02,282 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:02,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-14 20:29:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:02,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 20:29:02,334 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:02,635 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-14 20:29:02,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:02,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:02,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532310610] [2024-10-14 20:29:02,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:02,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42488033] [2024-10-14 20:29:02,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42488033] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:02,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:02,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-14 20:29:02,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118956888] [2024-10-14 20:29:02,749 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:02,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:29:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:29:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:29:02,750 INFO L87 Difference]: Start difference. First operand 531 states and 706 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 20:29:03,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:03,727 INFO L93 Difference]: Finished difference Result 579 states and 756 transitions. [2024-10-14 20:29:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 20:29:03,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 82 [2024-10-14 20:29:03,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:03,729 INFO L225 Difference]: With dead ends: 579 [2024-10-14 20:29:03,729 INFO L226 Difference]: Without dead ends: 577 [2024-10-14 20:29:03,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:29:03,730 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 279 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:03,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 177 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 20:29:03,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-10-14 20:29:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 538. [2024-10-14 20:29:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 447 states have (on average 1.3557046979865772) internal successors, (606), 483 states have internal predecessors, (606), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 20:29:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 710 transitions. [2024-10-14 20:29:03,757 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 710 transitions. Word has length 82 [2024-10-14 20:29:03,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:03,758 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 710 transitions. [2024-10-14 20:29:03,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 20:29:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 710 transitions. [2024-10-14 20:29:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-14 20:29:03,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:03,759 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:03,776 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-10-14 20:29:03,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:03,964 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:03,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 901066479, now seen corresponding path program 1 times [2024-10-14 20:29:03,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:03,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220078838] [2024-10-14 20:29:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:03,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:03,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767629717] [2024-10-14 20:29:03,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:03,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:03,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:03,978 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:03,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-14 20:29:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:04,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:29:04,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-14 20:29:04,413 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:04,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:04,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220078838] [2024-10-14 20:29:04,727 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:04,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767629717] [2024-10-14 20:29:04,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767629717] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:04,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:04,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:29:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650185369] [2024-10-14 20:29:04,728 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:04,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:29:04,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:29:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:29:04,729 INFO L87 Difference]: Start difference. First operand 538 states and 710 transitions. Second operand has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 20:29:05,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:05,437 INFO L93 Difference]: Finished difference Result 556 states and 732 transitions. [2024-10-14 20:29:05,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:29:05,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 83 [2024-10-14 20:29:05,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:05,439 INFO L225 Difference]: With dead ends: 556 [2024-10-14 20:29:05,439 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 20:29:05,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:29:05,440 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 220 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:05,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 265 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:29:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 20:29:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 537. [2024-10-14 20:29:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 449 states have (on average 1.3273942093541202) internal successors, (596), 482 states have internal predecessors, (596), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 20:29:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 700 transitions. [2024-10-14 20:29:05,471 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 700 transitions. Word has length 83 [2024-10-14 20:29:05,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:05,473 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 700 transitions. [2024-10-14 20:29:05,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 20:29:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 700 transitions. [2024-10-14 20:29:05,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-14 20:29:05,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:05,474 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:05,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-14 20:29:05,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:05,674 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:05,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash -473010213, now seen corresponding path program 1 times [2024-10-14 20:29:05,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:05,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986479020] [2024-10-14 20:29:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:05,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:29:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:29:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:29:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:29:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:29:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 20:29:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 20:29:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 20:29:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:05,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:05,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986479020] [2024-10-14 20:29:05,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986479020] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:05,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180571007] [2024-10-14 20:29:05,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:05,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:05,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:05,809 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:05,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-14 20:29:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:05,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:29:05,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:06,020 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:06,020 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:06,169 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:06,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180571007] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:29:06,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:29:06,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 13 [2024-10-14 20:29:06,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884375227] [2024-10-14 20:29:06,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:06,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 20:29:06,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:06,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 20:29:06,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:29:06,171 INFO L87 Difference]: Start difference. First operand 537 states and 700 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-10-14 20:29:06,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:06,737 INFO L93 Difference]: Finished difference Result 539 states and 700 transitions. [2024-10-14 20:29:06,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 20:29:06,737 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) Word has length 92 [2024-10-14 20:29:06,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:06,739 INFO L225 Difference]: With dead ends: 539 [2024-10-14 20:29:06,739 INFO L226 Difference]: Without dead ends: 538 [2024-10-14 20:29:06,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=268, Invalid=602, Unknown=0, NotChecked=0, Total=870 [2024-10-14 20:29:06,740 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 597 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:06,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 321 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:29:06,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-10-14 20:29:06,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 536. [2024-10-14 20:29:06,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 449 states have (on average 1.3184855233853006) internal successors, (592), 481 states have internal predecessors, (592), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 20:29:06,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 696 transitions. [2024-10-14 20:29:06,773 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 696 transitions. Word has length 92 [2024-10-14 20:29:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:06,774 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 696 transitions. [2024-10-14 20:29:06,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 8 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 8 states have call predecessors, (21), 8 states have call successors, (21) [2024-10-14 20:29:06,774 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 696 transitions. [2024-10-14 20:29:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-14 20:29:06,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:06,775 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:06,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-10-14 20:29:06,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-10-14 20:29:06,976 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:06,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:06,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1652964827, now seen corresponding path program 1 times [2024-10-14 20:29:06,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:06,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318659932] [2024-10-14 20:29:06,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:06,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:29:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:29:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:29:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:29:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:29:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 20:29:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 20:29:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 20:29:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:07,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:07,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318659932] [2024-10-14 20:29:07,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318659932] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:07,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50725605] [2024-10-14 20:29:07,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:07,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:07,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:07,085 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:07,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-14 20:29:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:07,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:29:07,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:07,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:07,399 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:07,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50725605] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:29:07,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:29:07,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-10-14 20:29:07,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336717800] [2024-10-14 20:29:07,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:07,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-14 20:29:07,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:07,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-14 20:29:07,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:29:07,401 INFO L87 Difference]: Start difference. First operand 536 states and 696 transitions. Second operand has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 14 states have internal predecessors, (162), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-10-14 20:29:07,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:07,866 INFO L93 Difference]: Finished difference Result 560 states and 720 transitions. [2024-10-14 20:29:07,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-14 20:29:07,866 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 14 states have internal predecessors, (162), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 92 [2024-10-14 20:29:07,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:07,868 INFO L225 Difference]: With dead ends: 560 [2024-10-14 20:29:07,868 INFO L226 Difference]: Without dead ends: 559 [2024-10-14 20:29:07,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=283, Invalid=647, Unknown=0, NotChecked=0, Total=930 [2024-10-14 20:29:07,869 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 618 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:07,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 414 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:29:07,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2024-10-14 20:29:07,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 535. [2024-10-14 20:29:07,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 449 states have (on average 1.3095768374164811) internal successors, (588), 480 states have internal predecessors, (588), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-14 20:29:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 692 transitions. [2024-10-14 20:29:07,904 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 692 transitions. Word has length 92 [2024-10-14 20:29:07,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:07,904 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 692 transitions. [2024-10-14 20:29:07,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.461538461538462) internal successors, (162), 14 states have internal predecessors, (162), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-10-14 20:29:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 692 transitions. [2024-10-14 20:29:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 20:29:07,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:07,905 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:07,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-10-14 20:29:08,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-14 20:29:08,106 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:08,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:08,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1777983642, now seen corresponding path program 1 times [2024-10-14 20:29:08,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:08,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169066387] [2024-10-14 20:29:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:08,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:29:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:29:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:29:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:29:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:29:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 20:29:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 20:29:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 20:29:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:08,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169066387] [2024-10-14 20:29:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169066387] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:08,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839188039] [2024-10-14 20:29:08,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:08,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:08,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:08,217 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:08,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-14 20:29:08,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:08,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:29:08,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:08,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:08,558 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:08,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839188039] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:29:08,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:29:08,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-10-14 20:29:08,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559640516] [2024-10-14 20:29:08,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:08,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:29:08,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:08,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:29:08,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:29:08,561 INFO L87 Difference]: Start difference. First operand 535 states and 692 transitions. Second operand has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-10-14 20:29:09,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:09,311 INFO L93 Difference]: Finished difference Result 949 states and 1269 transitions. [2024-10-14 20:29:09,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:29:09,312 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 93 [2024-10-14 20:29:09,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:09,315 INFO L225 Difference]: With dead ends: 949 [2024-10-14 20:29:09,315 INFO L226 Difference]: Without dead ends: 947 [2024-10-14 20:29:09,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:29:09,315 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 224 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:09,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 256 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:29:09,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-10-14 20:29:09,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 757. [2024-10-14 20:29:09,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 650 states have (on average 1.3215384615384616) internal successors, (859), 681 states have internal predecessors, (859), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-10-14 20:29:09,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1005 transitions. [2024-10-14 20:29:09,364 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1005 transitions. Word has length 93 [2024-10-14 20:29:09,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:09,365 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1005 transitions. [2024-10-14 20:29:09,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.285714285714285) internal successors, (163), 8 states have internal predecessors, (163), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-10-14 20:29:09,365 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1005 transitions. [2024-10-14 20:29:09,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-14 20:29:09,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:09,366 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:09,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-10-14 20:29:09,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:09,566 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:09,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:09,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1261054422, now seen corresponding path program 1 times [2024-10-14 20:29:09,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:09,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338946742] [2024-10-14 20:29:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:09,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:29:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:29:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:29:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:29:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:29:09,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 20:29:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 20:29:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 20:29:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:09,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:09,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338946742] [2024-10-14 20:29:09,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338946742] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:09,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472731724] [2024-10-14 20:29:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:09,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:09,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:09,667 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:09,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-10-14 20:29:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:09,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:29:09,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:09,897 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:09,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:10,017 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:10,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472731724] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:29:10,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:29:10,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2024-10-14 20:29:10,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728650292] [2024-10-14 20:29:10,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:10,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:29:10,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:10,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:29:10,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:29:10,020 INFO L87 Difference]: Start difference. First operand 757 states and 1005 transitions. Second operand has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-10-14 20:29:10,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:10,554 INFO L93 Difference]: Finished difference Result 1348 states and 1833 transitions. [2024-10-14 20:29:10,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:29:10,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 95 [2024-10-14 20:29:10,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:10,558 INFO L225 Difference]: With dead ends: 1348 [2024-10-14 20:29:10,558 INFO L226 Difference]: Without dead ends: 1346 [2024-10-14 20:29:10,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:29:10,559 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 276 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:10,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 298 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:29:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2024-10-14 20:29:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1062. [2024-10-14 20:29:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 925 states have (on average 1.3308108108108108) internal successors, (1231), 956 states have internal predecessors, (1231), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2024-10-14 20:29:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1437 transitions. [2024-10-14 20:29:10,622 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1437 transitions. Word has length 95 [2024-10-14 20:29:10,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:10,623 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1437 transitions. [2024-10-14 20:29:10,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-10-14 20:29:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1437 transitions. [2024-10-14 20:29:10,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 20:29:10,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:10,623 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:10,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-10-14 20:29:10,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-10-14 20:29:10,824 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:10,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:10,824 INFO L85 PathProgramCache]: Analyzing trace with hash 287079521, now seen corresponding path program 1 times [2024-10-14 20:29:10,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:10,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632924768] [2024-10-14 20:29:10,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:10,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:10,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1744510348] [2024-10-14 20:29:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:10,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:10,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:10,838 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:10,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-14 20:29:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:10,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-14 20:29:10,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-14 20:29:11,441 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:11,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:11,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632924768] [2024-10-14 20:29:11,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:11,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744510348] [2024-10-14 20:29:11,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744510348] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:11,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:11,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-14 20:29:11,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550900858] [2024-10-14 20:29:11,537 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:11,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:29:11,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:11,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:29:11,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:29:11,538 INFO L87 Difference]: Start difference. First operand 1062 states and 1437 transitions. Second operand has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-14 20:29:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:12,625 INFO L93 Difference]: Finished difference Result 1138 states and 1540 transitions. [2024-10-14 20:29:12,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 20:29:12,626 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 98 [2024-10-14 20:29:12,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:12,629 INFO L225 Difference]: With dead ends: 1138 [2024-10-14 20:29:12,629 INFO L226 Difference]: Without dead ends: 1134 [2024-10-14 20:29:12,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2024-10-14 20:29:12,629 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 353 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:12,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 433 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 20:29:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2024-10-14 20:29:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1088. [2024-10-14 20:29:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 948 states have (on average 1.3291139240506329) internal successors, (1260), 979 states have internal predecessors, (1260), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-10-14 20:29:12,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1472 transitions. [2024-10-14 20:29:12,699 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1472 transitions. Word has length 98 [2024-10-14 20:29:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:12,699 INFO L471 AbstractCegarLoop]: Abstraction has 1088 states and 1472 transitions. [2024-10-14 20:29:12,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-14 20:29:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1472 transitions. [2024-10-14 20:29:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 20:29:12,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:12,701 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:12,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-10-14 20:29:12,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-10-14 20:29:12,905 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:12,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:12,905 INFO L85 PathProgramCache]: Analyzing trace with hash -957252127, now seen corresponding path program 2 times [2024-10-14 20:29:12,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:12,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856702452] [2024-10-14 20:29:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:12,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:12,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969022455] [2024-10-14 20:29:12,920 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:29:12,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:12,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:12,924 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:12,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-14 20:29:12,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:29:12,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:29:12,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:29:12,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:13,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:13,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:13,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856702452] [2024-10-14 20:29:13,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:13,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969022455] [2024-10-14 20:29:13,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969022455] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:13,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:13,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-14 20:29:13,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327802638] [2024-10-14 20:29:13,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:13,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:29:13,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:13,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:29:13,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:29:13,866 INFO L87 Difference]: Start difference. First operand 1088 states and 1472 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 20:29:14,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:14,416 INFO L93 Difference]: Finished difference Result 1222 states and 1649 transitions. [2024-10-14 20:29:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:29:14,417 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2024-10-14 20:29:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:14,420 INFO L225 Difference]: With dead ends: 1222 [2024-10-14 20:29:14,420 INFO L226 Difference]: Without dead ends: 1220 [2024-10-14 20:29:14,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:29:14,421 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 159 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:14,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 287 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:29:14,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-10-14 20:29:14,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1096. [2024-10-14 20:29:14,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 955 states have (on average 1.3235602094240837) internal successors, (1264), 986 states have internal predecessors, (1264), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-10-14 20:29:14,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1478 transitions. [2024-10-14 20:29:14,483 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1478 transitions. Word has length 98 [2024-10-14 20:29:14,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:14,483 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1478 transitions. [2024-10-14 20:29:14,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 20:29:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1478 transitions. [2024-10-14 20:29:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 20:29:14,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:14,484 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:14,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-10-14 20:29:14,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-14 20:29:14,684 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:14,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:14,685 INFO L85 PathProgramCache]: Analyzing trace with hash 309530607, now seen corresponding path program 1 times [2024-10-14 20:29:14,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:14,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285173323] [2024-10-14 20:29:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:14,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:14,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1071356075] [2024-10-14 20:29:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:14,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:14,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:14,697 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:14,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-10-14 20:29:14,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:14,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 20:29:14,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-14 20:29:15,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:15,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:15,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285173323] [2024-10-14 20:29:15,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:15,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071356075] [2024-10-14 20:29:15,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071356075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:15,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:15,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-14 20:29:15,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374389026] [2024-10-14 20:29:15,600 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:15,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:29:15,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:29:15,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:29:15,601 INFO L87 Difference]: Start difference. First operand 1096 states and 1478 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-14 20:29:16,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:16,300 INFO L93 Difference]: Finished difference Result 1143 states and 1534 transitions. [2024-10-14 20:29:16,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:29:16,301 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 99 [2024-10-14 20:29:16,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:16,305 INFO L225 Difference]: With dead ends: 1143 [2024-10-14 20:29:16,305 INFO L226 Difference]: Without dead ends: 1141 [2024-10-14 20:29:16,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2024-10-14 20:29:16,306 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 344 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:16,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 323 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:29:16,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-10-14 20:29:16,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1104. [2024-10-14 20:29:16,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 962 states have (on average 1.3243243243243243) internal successors, (1274), 993 states have internal predecessors, (1274), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-10-14 20:29:16,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1490 transitions. [2024-10-14 20:29:16,362 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1490 transitions. Word has length 99 [2024-10-14 20:29:16,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:16,362 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1490 transitions. [2024-10-14 20:29:16,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-14 20:29:16,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1490 transitions. [2024-10-14 20:29:16,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 20:29:16,362 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:16,363 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:16,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-10-14 20:29:16,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:16,563 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:16,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:16,564 INFO L85 PathProgramCache]: Analyzing trace with hash 389955183, now seen corresponding path program 2 times [2024-10-14 20:29:16,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:16,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437414127] [2024-10-14 20:29:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:16,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:16,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704855301] [2024-10-14 20:29:16,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:29:16,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:16,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:16,581 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:16,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-10-14 20:29:16,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:29:16,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:29:16,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:29:16,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-14 20:29:16,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:17,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:17,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437414127] [2024-10-14 20:29:17,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:17,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704855301] [2024-10-14 20:29:17,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704855301] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:17,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:17,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:29:17,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954694175] [2024-10-14 20:29:17,094 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:17,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:29:17,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:29:17,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:29:17,095 INFO L87 Difference]: Start difference. First operand 1104 states and 1490 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-14 20:29:17,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:17,637 INFO L93 Difference]: Finished difference Result 1161 states and 1551 transitions. [2024-10-14 20:29:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:29:17,638 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 99 [2024-10-14 20:29:17,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:17,642 INFO L225 Difference]: With dead ends: 1161 [2024-10-14 20:29:17,642 INFO L226 Difference]: Without dead ends: 1159 [2024-10-14 20:29:17,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:29:17,643 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 132 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:17,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 302 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:29:17,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-10-14 20:29:17,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1097. [2024-10-14 20:29:17,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 956 states have (on average 1.3211297071129706) internal successors, (1263), 987 states have internal predecessors, (1263), 107 states have call successors, (107), 2 states have call predecessors, (107), 2 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-10-14 20:29:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1477 transitions. [2024-10-14 20:29:17,700 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1477 transitions. Word has length 99 [2024-10-14 20:29:17,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:17,700 INFO L471 AbstractCegarLoop]: Abstraction has 1097 states and 1477 transitions. [2024-10-14 20:29:17,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 8 states have internal predecessors, (68), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-14 20:29:17,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1477 transitions. [2024-10-14 20:29:17,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 20:29:17,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:17,701 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:17,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-10-14 20:29:17,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:17,902 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:17,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1005514275, now seen corresponding path program 1 times [2024-10-14 20:29:17,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:17,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137481490] [2024-10-14 20:29:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:17,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:17,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064566707] [2024-10-14 20:29:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:17,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:17,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:17,915 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:17,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-10-14 20:29:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:17,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:29:17,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:18,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:18,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137481490] [2024-10-14 20:29:18,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064566707] [2024-10-14 20:29:18,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064566707] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:18,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:18,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-14 20:29:18,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736029960] [2024-10-14 20:29:18,425 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:18,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:29:18,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:18,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:29:18,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:29:18,426 INFO L87 Difference]: Start difference. First operand 1097 states and 1477 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 20:29:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:19,005 INFO L93 Difference]: Finished difference Result 1220 states and 1665 transitions. [2024-10-14 20:29:19,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:29:19,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 100 [2024-10-14 20:29:19,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:19,009 INFO L225 Difference]: With dead ends: 1220 [2024-10-14 20:29:19,009 INFO L226 Difference]: Without dead ends: 1216 [2024-10-14 20:29:19,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:29:19,010 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 229 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:19,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 229 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:29:19,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2024-10-14 20:29:19,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1078. [2024-10-14 20:29:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 943 states have (on average 1.2778366914103925) internal successors, (1205), 970 states have internal predecessors, (1205), 105 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-14 20:29:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1415 transitions. [2024-10-14 20:29:19,062 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1415 transitions. Word has length 100 [2024-10-14 20:29:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:19,063 INFO L471 AbstractCegarLoop]: Abstraction has 1078 states and 1415 transitions. [2024-10-14 20:29:19,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 20:29:19,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1415 transitions. [2024-10-14 20:29:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 20:29:19,064 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:19,064 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:19,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-10-14 20:29:19,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-10-14 20:29:19,264 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:19,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:19,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1106171505, now seen corresponding path program 1 times [2024-10-14 20:29:19,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:19,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73588136] [2024-10-14 20:29:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:19,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:19,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649588914] [2024-10-14 20:29:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:19,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:19,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:19,280 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:19,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-10-14 20:29:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:19,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:29:19,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:19,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:19,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:19,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73588136] [2024-10-14 20:29:19,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:19,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649588914] [2024-10-14 20:29:19,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649588914] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:19,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:19,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-14 20:29:19,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723011055] [2024-10-14 20:29:19,811 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:19,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:29:19,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:19,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:29:19,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:29:19,812 INFO L87 Difference]: Start difference. First operand 1078 states and 1415 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 20:29:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:20,205 INFO L93 Difference]: Finished difference Result 1111 states and 1457 transitions. [2024-10-14 20:29:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:29:20,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 101 [2024-10-14 20:29:20,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:20,208 INFO L225 Difference]: With dead ends: 1111 [2024-10-14 20:29:20,208 INFO L226 Difference]: Without dead ends: 1109 [2024-10-14 20:29:20,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:29:20,209 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 88 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:20,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 227 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:29:20,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2024-10-14 20:29:20,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1084. [2024-10-14 20:29:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 948 states have (on average 1.2774261603375527) internal successors, (1211), 975 states have internal predecessors, (1211), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2024-10-14 20:29:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1423 transitions. [2024-10-14 20:29:20,282 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1423 transitions. Word has length 101 [2024-10-14 20:29:20,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:20,282 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1423 transitions. [2024-10-14 20:29:20,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-14 20:29:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1423 transitions. [2024-10-14 20:29:20,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 20:29:20,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:20,283 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:20,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-10-14 20:29:20,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-10-14 20:29:20,488 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:20,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1084777713, now seen corresponding path program 2 times [2024-10-14 20:29:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:20,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543682419] [2024-10-14 20:29:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:20,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924967157] [2024-10-14 20:29:20,498 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:29:20,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:20,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:20,500 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:20,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-10-14 20:29:20,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:29:20,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:29:20,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 20:29:20,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:20,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:21,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:21,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543682419] [2024-10-14 20:29:21,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:21,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924967157] [2024-10-14 20:29:21,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924967157] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:29:21,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:29:21,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2024-10-14 20:29:21,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942043217] [2024-10-14 20:29:21,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:21,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:29:21,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:21,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:29:21,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:29:21,622 INFO L87 Difference]: Start difference. First operand 1084 states and 1423 transitions. Second operand has 9 states, 8 states have (on average 15.875) internal successors, (127), 9 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-14 20:29:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:26,700 INFO L93 Difference]: Finished difference Result 1156 states and 1507 transitions. [2024-10-14 20:29:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:29:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.875) internal successors, (127), 9 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 101 [2024-10-14 20:29:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:26,705 INFO L225 Difference]: With dead ends: 1156 [2024-10-14 20:29:26,705 INFO L226 Difference]: Without dead ends: 1154 [2024-10-14 20:29:26,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:29:26,706 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 281 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:26,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 363 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-10-14 20:29:26,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2024-10-14 20:29:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1099. [2024-10-14 20:29:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 965 states have (on average 1.2704663212435232) internal successors, (1226), 991 states have internal predecessors, (1226), 105 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-14 20:29:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1436 transitions. [2024-10-14 20:29:26,758 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1436 transitions. Word has length 101 [2024-10-14 20:29:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:26,758 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1436 transitions. [2024-10-14 20:29:26,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.875) internal successors, (127), 9 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-10-14 20:29:26,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1436 transitions. [2024-10-14 20:29:26,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 20:29:26,759 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:26,759 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:26,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-10-14 20:29:26,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-10-14 20:29:26,960 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:26,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:26,960 INFO L85 PathProgramCache]: Analyzing trace with hash -68421659, now seen corresponding path program 1 times [2024-10-14 20:29:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:26,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40101235] [2024-10-14 20:29:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:26,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:26,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870089758] [2024-10-14 20:29:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:26,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:26,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:26,973 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:26,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-10-14 20:29:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:27,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 20:29:27,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:27,411 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:27,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:27,992 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-14 20:29:27,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:27,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40101235] [2024-10-14 20:29:27,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:27,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870089758] [2024-10-14 20:29:27,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870089758] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:27,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:27,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-14 20:29:27,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450148378] [2024-10-14 20:29:27,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:29:27,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:29:27,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:27,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:29:27,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:29:27,993 INFO L87 Difference]: Start difference. First operand 1099 states and 1436 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:29:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:29,763 INFO L93 Difference]: Finished difference Result 1099 states and 1436 transitions. [2024-10-14 20:29:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:29:29,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2024-10-14 20:29:29,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:29,770 INFO L225 Difference]: With dead ends: 1099 [2024-10-14 20:29:29,771 INFO L226 Difference]: Without dead ends: 1098 [2024-10-14 20:29:29,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 193 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:29:29,772 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 82 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:29,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 104 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 20:29:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-10-14 20:29:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2024-10-14 20:29:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 965 states have (on average 1.249740932642487) internal successors, (1206), 990 states have internal predecessors, (1206), 105 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-14 20:29:29,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1416 transitions. [2024-10-14 20:29:29,855 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1416 transitions. Word has length 102 [2024-10-14 20:29:29,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:29,856 INFO L471 AbstractCegarLoop]: Abstraction has 1098 states and 1416 transitions. [2024-10-14 20:29:29,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:29:29,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1416 transitions. [2024-10-14 20:29:29,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-14 20:29:29,857 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:29,857 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:29,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-10-14 20:29:30,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-10-14 20:29:30,058 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:30,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2121071373, now seen corresponding path program 1 times [2024-10-14 20:29:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:30,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332312577] [2024-10-14 20:29:30,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:30,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:30,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23837090] [2024-10-14 20:29:30,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:30,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:30,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:30,076 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:30,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-10-14 20:29:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:30,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-14 20:29:30,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:30,493 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-10-14 20:29:30,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-10-14 20:29:30,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:30,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332312577] [2024-10-14 20:29:30,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:30,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23837090] [2024-10-14 20:29:30,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23837090] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:30,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:30,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-14 20:29:30,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132955053] [2024-10-14 20:29:30,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:29:30,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:29:30,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:30,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:29:30,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:29:30,987 INFO L87 Difference]: Start difference. First operand 1098 states and 1416 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:29:33,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:33,029 INFO L93 Difference]: Finished difference Result 1098 states and 1416 transitions. [2024-10-14 20:29:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:29:33,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 103 [2024-10-14 20:29:33,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:33,037 INFO L225 Difference]: With dead ends: 1098 [2024-10-14 20:29:33,037 INFO L226 Difference]: Without dead ends: 1095 [2024-10-14 20:29:33,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 195 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:29:33,038 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 82 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:33,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 104 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 20:29:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-10-14 20:29:33,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 1095. [2024-10-14 20:29:33,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 965 states have (on average 1.2248704663212435) internal successors, (1182), 987 states have internal predecessors, (1182), 105 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-10-14 20:29:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1392 transitions. [2024-10-14 20:29:33,108 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1392 transitions. Word has length 103 [2024-10-14 20:29:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:33,109 INFO L471 AbstractCegarLoop]: Abstraction has 1095 states and 1392 transitions. [2024-10-14 20:29:33,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:29:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1392 transitions. [2024-10-14 20:29:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 20:29:33,110 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:33,110 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:33,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-10-14 20:29:33,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:33,310 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:33,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:33,311 INFO L85 PathProgramCache]: Analyzing trace with hash -950197503, now seen corresponding path program 1 times [2024-10-14 20:29:33,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:33,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608560866] [2024-10-14 20:29:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:33,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:29:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:29:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 20:29:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 20:29:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 20:29:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 20:29:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 20:29:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 20:29:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 20:29:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:29:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-14 20:29:33,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:33,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608560866] [2024-10-14 20:29:33,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608560866] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:29:33,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:29:33,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:29:33,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204505807] [2024-10-14 20:29:33,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:29:33,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:29:33,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:33,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:29:33,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:29:33,408 INFO L87 Difference]: Start difference. First operand 1095 states and 1392 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-14 20:29:34,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:29:34,663 INFO L93 Difference]: Finished difference Result 1117 states and 1412 transitions. [2024-10-14 20:29:34,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:29:34,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 104 [2024-10-14 20:29:34,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:29:34,666 INFO L225 Difference]: With dead ends: 1117 [2024-10-14 20:29:34,666 INFO L226 Difference]: Without dead ends: 1105 [2024-10-14 20:29:34,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:29:34,667 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 131 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:29:34,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 187 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 20:29:34,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-10-14 20:29:34,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1083. [2024-10-14 20:29:34,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1083 states, 955 states have (on average 1.219895287958115) internal successors, (1165), 976 states have internal predecessors, (1165), 104 states have call successors, (104), 2 states have call predecessors, (104), 2 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-10-14 20:29:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1083 states to 1083 states and 1373 transitions. [2024-10-14 20:29:34,765 INFO L78 Accepts]: Start accepts. Automaton has 1083 states and 1373 transitions. Word has length 104 [2024-10-14 20:29:34,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:29:34,765 INFO L471 AbstractCegarLoop]: Abstraction has 1083 states and 1373 transitions. [2024-10-14 20:29:34,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-14 20:29:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1083 states and 1373 transitions. [2024-10-14 20:29:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-14 20:29:34,766 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:29:34,766 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:29:34,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-14 20:29:34,766 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-10-14 20:29:34,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:29:34,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1591998305, now seen corresponding path program 2 times [2024-10-14 20:29:34,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:29:34,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563651998] [2024-10-14 20:29:34,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:29:34,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:29:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:29:34,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777503781] [2024-10-14 20:29:34,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:29:34,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:29:34,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:29:34,788 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:29:34,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-10-14 20:29:34,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:29:34,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:29:34,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 20:29:34,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:29:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 15 proven. 51 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-14 20:29:36,237 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:29:36,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:29:36,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563651998] [2024-10-14 20:29:36,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:29:36,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777503781] [2024-10-14 20:29:36,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777503781] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:29:36,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:29:36,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-14 20:29:36,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488307271] [2024-10-14 20:29:36,626 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:29:36,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:29:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:29:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:29:36,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=160, Unknown=1, NotChecked=0, Total=210 [2024-10-14 20:29:36,627 INFO L87 Difference]: Start difference. First operand 1083 states and 1373 transitions. Second operand has 11 states, 10 states have (on average 7.3) internal successors, (73), 11 states have internal predecessors, (73), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-14 20:29:44,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]