./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45cf92b0c6fea336569aa3c590b09eca22523fff4b1b234a5534ea2e1e74fe84 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:13:22,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:13:22,305 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-11 20:13:22,320 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:13:22,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:13:22,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:13:22,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:13:22,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:13:22,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:13:22,347 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:13:22,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:13:22,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:13:22,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:13:22,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:13:22,349 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:13:22,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:13:22,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:13:22,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:13:22,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:13:22,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:13:22,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:13:22,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:13:22,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:13:22,352 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:13:22,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:13:22,353 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:13:22,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:13:22,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:13:22,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:13:22,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:13:22,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:13:22,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:13:22,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:13:22,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:13:22,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:13:22,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:13:22,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:13:22,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:13:22,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:13:22,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:13:22,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:13:22,357 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45cf92b0c6fea336569aa3c590b09eca22523fff4b1b234a5534ea2e1e74fe84 [2024-10-11 20:13:22,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:13:22,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:13:22,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:13:22,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:13:22,650 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:13:22,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c [2024-10-11 20:13:24,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:13:24,318 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:13:24,319 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NonTerminationSimple4.c [2024-10-11 20:13:24,326 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ae876caa2/e145c23ea94e4fa087e367091185cb7e/FLAGc643227ba [2024-10-11 20:13:24,337 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ae876caa2/e145c23ea94e4fa087e367091185cb7e [2024-10-11 20:13:24,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:13:24,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:13:24,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:13:24,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:13:24,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:13:24,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be5454f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24, skipping insertion in model container [2024-10-11 20:13:24,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:13:24,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:13:24,548 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:13:24,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:13:24,577 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:13:24,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24 WrapperNode [2024-10-11 20:13:24,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:13:24,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:13:24,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:13:24,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:13:24,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,606 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2024-10-11 20:13:24,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:13:24,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:13:24,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:13:24,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:13:24,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,619 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,625 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-11 20:13:24,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:13:24,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:13:24,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:13:24,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:13:24,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (1/1) ... [2024-10-11 20:13:24,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:13:24,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:24,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:13:24,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:13:24,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:13:24,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:13:24,787 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:13:24,789 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:13:24,866 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-11 20:13:24,866 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:13:24,893 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:13:24,893 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 20:13:24,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:13:24 BoogieIcfgContainer [2024-10-11 20:13:24,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:13:24,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:13:24,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:13:24,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:13:24,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:13:24" (1/3) ... [2024-10-11 20:13:24,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2bd25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:13:24, skipping insertion in model container [2024-10-11 20:13:24,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:13:24" (2/3) ... [2024-10-11 20:13:24,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2bd25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:13:24, skipping insertion in model container [2024-10-11 20:13:24,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:13:24" (3/3) ... [2024-10-11 20:13:24,907 INFO L112 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple4.c [2024-10-11 20:13:24,920 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:13:24,920 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 20:13:24,969 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:13:24,975 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;@3269523a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:13:24,976 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-11 20:13:24,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:24,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-11 20:13:24,986 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:24,986 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-11 20:13:24,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:24,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:24,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1822505, now seen corresponding path program 1 times [2024-10-11 20:13:25,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:25,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063073740] [2024-10-11 20:13:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:25,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:25,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063073740] [2024-10-11 20:13:25,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063073740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:13:25,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:13:25,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:13:25,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401541517] [2024-10-11 20:13:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:13:25,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:13:25,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:25,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:13:25,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:13:25,176 INFO L87 Difference]: Start difference. First operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:25,212 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2024-10-11 20:13:25,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:13:25,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-11 20:13:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:25,222 INFO L225 Difference]: With dead ends: 16 [2024-10-11 20:13:25,223 INFO L226 Difference]: Without dead ends: 10 [2024-10-11 20:13:25,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:13:25,230 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:25,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:13:25,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-11 20:13:25,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-10-11 20:13:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-10-11 20:13:25,256 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2024-10-11 20:13:25,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:25,256 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-10-11 20:13:25,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,257 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-10-11 20:13:25,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 20:13:25,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:25,257 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 20:13:25,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:13:25,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:25,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:25,258 INFO L85 PathProgramCache]: Analyzing trace with hash 56497703, now seen corresponding path program 1 times [2024-10-11 20:13:25,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:25,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17558555] [2024-10-11 20:13:25,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:25,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:25,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:25,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17558555] [2024-10-11 20:13:25,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17558555] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:13:25,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:13:25,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 20:13:25,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530159594] [2024-10-11 20:13:25,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:13:25,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:13:25,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:25,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:13:25,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:13:25,326 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:25,340 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-10-11 20:13:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:13:25,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 20:13:25,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:25,341 INFO L225 Difference]: With dead ends: 9 [2024-10-11 20:13:25,341 INFO L226 Difference]: Without dead ends: 8 [2024-10-11 20:13:25,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:13:25,344 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:25,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:13:25,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-10-11 20:13:25,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-11 20:13:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-10-11 20:13:25,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2024-10-11 20:13:25,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:25,352 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-10-11 20:13:25,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-10-11 20:13:25,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-11 20:13:25,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:25,354 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-10-11 20:13:25,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:13:25,356 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:25,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1540280855, now seen corresponding path program 1 times [2024-10-11 20:13:25,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:25,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810459278] [2024-10-11 20:13:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:25,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:25,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:25,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:25,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810459278] [2024-10-11 20:13:25,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810459278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:25,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982649134] [2024-10-11 20:13:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:25,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:25,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:25,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:25,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:13:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:25,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:13:25,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:25,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:25,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982649134] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:25,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:25,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-11 20:13:25,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549366308] [2024-10-11 20:13:25,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:25,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:13:25,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:25,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:13:25,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:13:25,572 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:25,610 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-10-11 20:13:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:13:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-11 20:13:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:25,612 INFO L225 Difference]: With dead ends: 18 [2024-10-11 20:13:25,613 INFO L226 Difference]: Without dead ends: 17 [2024-10-11 20:13:25,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:13:25,616 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:25,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:13:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-11 20:13:25,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-11 20:13:25,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-10-11 20:13:25,626 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2024-10-11 20:13:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:25,627 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-10-11 20:13:25,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:25,627 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-10-11 20:13:25,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 20:13:25,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:25,629 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1] [2024-10-11 20:13:25,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 20:13:25,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:25,830 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:25,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:25,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1073405737, now seen corresponding path program 2 times [2024-10-11 20:13:25,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:25,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726421301] [2024-10-11 20:13:25,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:25,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:25,968 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:25,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:25,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726421301] [2024-10-11 20:13:25,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726421301] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:25,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970096247] [2024-10-11 20:13:25,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:13:25,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:25,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:25,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:25,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:13:26,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:13:26,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:13:26,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:13:26,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:26,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:26,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970096247] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:26,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:26,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-11 20:13:26,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041541135] [2024-10-11 20:13:26,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:26,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 20:13:26,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:26,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 20:13:26,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:13:26,184 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:26,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:26,241 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-10-11 20:13:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 20:13:26,241 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 20:13:26,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:26,242 INFO L225 Difference]: With dead ends: 36 [2024-10-11 20:13:26,242 INFO L226 Difference]: Without dead ends: 35 [2024-10-11 20:13:26,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:13:26,244 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:26,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:13:26,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-11 20:13:26,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-10-11 20:13:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:26,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2024-10-11 20:13:26,251 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 16 [2024-10-11 20:13:26,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:26,252 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2024-10-11 20:13:26,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2024-10-11 20:13:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 20:13:26,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:26,253 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1] [2024-10-11 20:13:26,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 20:13:26,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:26,454 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:26,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:26,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2086897879, now seen corresponding path program 3 times [2024-10-11 20:13:26,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:26,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363956463] [2024-10-11 20:13:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:26,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:26,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363956463] [2024-10-11 20:13:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363956463] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960875576] [2024-10-11 20:13:26,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:13:26,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:26,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:26,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:26,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:13:26,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-11 20:13:26,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:13:26,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 20:13:26,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:26,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:27,172 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:27,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960875576] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:27,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:27,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-10-11 20:13:27,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104971538] [2024-10-11 20:13:27,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:27,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 20:13:27,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:27,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 20:13:27,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:13:27,177 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:27,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:27,270 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2024-10-11 20:13:27,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 20:13:27,271 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2024-10-11 20:13:27,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:27,272 INFO L225 Difference]: With dead ends: 72 [2024-10-11 20:13:27,273 INFO L226 Difference]: Without dead ends: 71 [2024-10-11 20:13:27,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:13:27,275 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:27,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:13:27,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-11 20:13:27,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-10-11 20:13:27,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:27,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2024-10-11 20:13:27,285 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 34 [2024-10-11 20:13:27,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:27,286 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2024-10-11 20:13:27,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9130434782608696) internal successors, (67), 24 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:27,286 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2024-10-11 20:13:27,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 20:13:27,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:27,291 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 1, 1, 1] [2024-10-11 20:13:27,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-11 20:13:27,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:27,496 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:27,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash 398305065, now seen corresponding path program 4 times [2024-10-11 20:13:27,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:27,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90896566] [2024-10-11 20:13:27,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:27,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:28,127 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:28,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:28,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90896566] [2024-10-11 20:13:28,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90896566] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:28,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559050122] [2024-10-11 20:13:28,128 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:13:28,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:28,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:28,129 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:28,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:13:28,170 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:13:28,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:13:28,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-11 20:13:28,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:28,310 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:28,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:29,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559050122] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:29,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:29,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-10-11 20:13:29,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393057226] [2024-10-11 20:13:29,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:29,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-11 20:13:29,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-11 20:13:29,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 20:13:29,168 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:29,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:29,331 INFO L93 Difference]: Finished difference Result 144 states and 167 transitions. [2024-10-11 20:13:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-11 20:13:29,332 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-10-11 20:13:29,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:29,333 INFO L225 Difference]: With dead ends: 144 [2024-10-11 20:13:29,333 INFO L226 Difference]: Without dead ends: 143 [2024-10-11 20:13:29,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2024-10-11 20:13:29,335 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:29,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:13:29,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-11 20:13:29,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-11 20:13:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2024-10-11 20:13:29,360 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 70 [2024-10-11 20:13:29,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:29,368 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 143 transitions. [2024-10-11 20:13:29,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.9574468085106385) internal successors, (139), 48 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:29,369 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 143 transitions. [2024-10-11 20:13:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-11 20:13:29,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:29,372 INFO L215 NwaCegarLoop]: trace histogram [47, 46, 46, 1, 1, 1] [2024-10-11 20:13:29,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 20:13:29,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 20:13:29,573 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:29,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:29,573 INFO L85 PathProgramCache]: Analyzing trace with hash -42465495, now seen corresponding path program 5 times [2024-10-11 20:13:29,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:29,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108301718] [2024-10-11 20:13:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:29,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:31,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:31,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:31,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108301718] [2024-10-11 20:13:31,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108301718] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:31,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275002627] [2024-10-11 20:13:31,244 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:13:31,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:31,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:31,246 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:31,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:13:31,323 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-10-11 20:13:31,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:13:31,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-11 20:13:31,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:31,535 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3197 backedges. 0 proven. 3197 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:34,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275002627] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:34,126 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:34,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2024-10-11 20:13:34,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206293207] [2024-10-11 20:13:34,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:34,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-10-11 20:13:34,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-10-11 20:13:34,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-10-11 20:13:34,133 INFO L87 Difference]: Start difference. First operand 143 states and 143 transitions. Second operand has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:34,444 INFO L93 Difference]: Finished difference Result 288 states and 335 transitions. [2024-10-11 20:13:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-10-11 20:13:34,445 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2024-10-11 20:13:34,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:34,447 INFO L225 Difference]: With dead ends: 288 [2024-10-11 20:13:34,447 INFO L226 Difference]: Without dead ends: 287 [2024-10-11 20:13:34,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2024-10-11 20:13:34,450 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:34,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 97 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:13:34,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-10-11 20:13:34,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2024-10-11 20:13:34,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:34,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 287 transitions. [2024-10-11 20:13:34,477 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 287 transitions. Word has length 142 [2024-10-11 20:13:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:34,477 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 287 transitions. [2024-10-11 20:13:34,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.9789473684210526) internal successors, (283), 96 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:34,478 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 287 transitions. [2024-10-11 20:13:34,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-10-11 20:13:34,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:34,482 INFO L215 NwaCegarLoop]: trace histogram [95, 94, 94, 1, 1, 1] [2024-10-11 20:13:34,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 20:13:34,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:34,687 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:34,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:34,687 INFO L85 PathProgramCache]: Analyzing trace with hash 248301353, now seen corresponding path program 6 times [2024-10-11 20:13:34,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:34,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303213611] [2024-10-11 20:13:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:34,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:40,068 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:40,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:40,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303213611] [2024-10-11 20:13:40,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303213611] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:40,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558351769] [2024-10-11 20:13:40,069 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:13:40,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:40,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:40,071 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:40,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:13:40,202 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-10-11 20:13:40,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:13:40,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-10-11 20:13:40,211 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:40,581 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 13301 backedges. 0 proven. 13301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:49,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558351769] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:49,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:49,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-10-11 20:13:49,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110228276] [2024-10-11 20:13:49,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:49,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-10-11 20:13:49,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-10-11 20:13:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-10-11 20:13:49,800 INFO L87 Difference]: Start difference. First operand 287 states and 287 transitions. Second operand has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:50,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:50,685 INFO L93 Difference]: Finished difference Result 576 states and 671 transitions. [2024-10-11 20:13:50,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2024-10-11 20:13:50,686 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2024-10-11 20:13:50,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:50,688 INFO L225 Difference]: With dead ends: 576 [2024-10-11 20:13:50,688 INFO L226 Difference]: Without dead ends: 575 [2024-10-11 20:13:50,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2024-10-11 20:13:50,691 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:50,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 193 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 20:13:50,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-10-11 20:13:50,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2024-10-11 20:13:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 575 transitions. [2024-10-11 20:13:50,736 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 575 transitions. Word has length 286 [2024-10-11 20:13:50,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:50,737 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 575 transitions. [2024-10-11 20:13:50,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 2.9895287958115184) internal successors, (571), 192 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:13:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 575 transitions. [2024-10-11 20:13:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-10-11 20:13:50,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:50,748 INFO L215 NwaCegarLoop]: trace histogram [191, 190, 190, 1, 1, 1] [2024-10-11 20:13:50,766 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 20:13:50,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 20:13:50,949 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-11 20:13:50,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash -923384023, now seen corresponding path program 7 times [2024-10-11 20:13:50,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:50,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105282907] [2024-10-11 20:13:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:50,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:09,976 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:09,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:09,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105282907] [2024-10-11 20:14:09,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105282907] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:09,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843367578] [2024-10-11 20:14:09,978 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:14:09,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:09,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:09,980 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:14:09,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:14:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:10,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 192 conjuncts are in the unsatisfiable core [2024-10-11 20:14:10,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:10,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 54245 backedges. 0 proven. 54245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:47,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843367578] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:47,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:47,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2024-10-11 20:14:47,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250007496] [2024-10-11 20:14:47,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:47,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2024-10-11 20:14:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:47,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2024-10-11 20:14:47,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2024-10-11 20:14:47,752 INFO L87 Difference]: Start difference. First operand 575 states and 575 transitions. Second operand has 384 states, 383 states have (on average 2.9947780678851177) internal successors, (1147), 384 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)