./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-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.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-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.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 01a4b84af22ba9336b377376d27423612474043c2c250fad1845bccdee580746 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:14:35,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:14:36,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-11 20:14:36,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:14:36,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:14:36,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:14:36,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:14:36,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:14:36,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:14:36,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:14:36,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:14:36,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:14:36,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:14:36,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:14:36,065 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:14:36,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:14:36,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:14:36,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:14:36,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:14:36,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:14:36,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:14:36,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:14:36,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:14:36,069 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:14:36,069 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:14:36,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:14:36,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:14:36,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:14:36,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:14:36,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:14:36,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:14:36,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:14:36,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:14:36,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:14:36,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:14:36,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:14:36,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:14:36,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:14:36,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:14:36,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:14:36,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:14:36,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01a4b84af22ba9336b377376d27423612474043c2c250fad1845bccdee580746 [2024-10-11 20:14:36,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:14:36,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:14:36,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:14:36,376 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:14:36,376 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:14:36,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2024-10-11 20:14:37,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:14:37,998 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:14:37,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2024-10-11 20:14:38,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/63f216df9/274ef4aed25a42eaa47458d85eea9769/FLAG2fc584597 [2024-10-11 20:14:38,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/63f216df9/274ef4aed25a42eaa47458d85eea9769 [2024-10-11 20:14:38,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:14:38,365 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:14:38,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:14:38,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:14:38,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:14:38,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1643ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38, skipping insertion in model container [2024-10-11 20:14:38,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,396 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:14:38,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:14:38,585 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:14:38,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:14:38,615 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:14:38,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38 WrapperNode [2024-10-11 20:14:38,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:14:38,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:14:38,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:14:38,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:14:38,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,646 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2024-10-11 20:14:38,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:14:38,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:14:38,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:14:38,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:14:38,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,664 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-11 20:14:38,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,677 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:14:38,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:14:38,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:14:38,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:14:38,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (1/1) ... [2024-10-11 20:14:38,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:14:38,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:38,720 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 20:14:38,727 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 20:14:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:14:38,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:14:38,845 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:14:38,849 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:14:38,974 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-10-11 20:14:38,975 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:14:39,008 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:14:39,008 INFO L314 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-11 20:14:39,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:14:39 BoogieIcfgContainer [2024-10-11 20:14:39,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:14:39,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:14:39,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:14:39,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:14:39,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:14:38" (1/3) ... [2024-10-11 20:14:39,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6f4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:14:39, skipping insertion in model container [2024-10-11 20:14:39,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:14:38" (2/3) ... [2024-10-11 20:14:39,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6f4a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:14:39, skipping insertion in model container [2024-10-11 20:14:39,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:14:39" (3/3) ... [2024-10-11 20:14:39,020 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-nestedLoop-2.c [2024-10-11 20:14:39,040 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:14:39,041 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 20:14:39,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:14:39,112 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;@4d62afe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:14:39,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 20:14:39,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 2.0) internal successors, (26), 19 states have internal predecessors, (26), 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 20:14:39,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 20:14:39,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:39,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 20:14:39,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:39,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:39,131 INFO L85 PathProgramCache]: Analyzing trace with hash 86974082, now seen corresponding path program 1 times [2024-10-11 20:14:39,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:39,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621164944] [2024-10-11 20:14:39,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:39,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:39,316 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 20:14:39,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:39,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621164944] [2024-10-11 20:14:39,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621164944] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:14:39,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:14:39,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:14:39,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231920460] [2024-10-11 20:14:39,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:14:39,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:14:39,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:39,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:14:39,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:14:39,346 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 2.0) internal successors, (26), 19 states have internal predecessors, (26), 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 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:14:39,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:39,403 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2024-10-11 20:14:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:14:39,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 20:14:39,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:39,412 INFO L225 Difference]: With dead ends: 46 [2024-10-11 20:14:39,412 INFO L226 Difference]: Without dead ends: 26 [2024-10-11 20:14:39,414 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 20:14:39,417 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:39,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 27 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:39,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-11 20:14:39,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2024-10-11 20:14:39,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.625) internal successors, (26), 21 states have internal predecessors, (26), 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 20:14:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2024-10-11 20:14:39,453 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 5 [2024-10-11 20:14:39,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:39,455 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2024-10-11 20:14:39,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:14:39,455 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-10-11 20:14:39,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 20:14:39,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:39,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 20:14:39,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:14:39,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:39,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:39,459 INFO L85 PathProgramCache]: Analyzing trace with hash 86974120, now seen corresponding path program 1 times [2024-10-11 20:14:39,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:39,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998251802] [2024-10-11 20:14:39,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:39,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:39,523 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 20:14:39,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:39,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998251802] [2024-10-11 20:14:39,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998251802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:14:39,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:14:39,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:14:39,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327095019] [2024-10-11 20:14:39,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:14:39,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:14:39,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:39,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:14:39,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:14:39,530 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:14:39,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:39,555 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2024-10-11 20:14:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:14:39,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 20:14:39,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:39,556 INFO L225 Difference]: With dead ends: 22 [2024-10-11 20:14:39,556 INFO L226 Difference]: Without dead ends: 21 [2024-10-11 20:14:39,557 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 20:14:39,558 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:39,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:39,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-10-11 20:14:39,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-11 20:14:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.5625) internal successors, (25), 20 states have internal predecessors, (25), 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 20:14:39,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-10-11 20:14:39,567 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 5 [2024-10-11 20:14:39,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:39,568 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-10-11 20:14:39,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:14:39,568 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-10-11 20:14:39,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 20:14:39,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:39,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 20:14:39,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:14:39,569 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:39,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:39,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1598770673, now seen corresponding path program 1 times [2024-10-11 20:14:39,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:39,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181965260] [2024-10-11 20:14:39,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:39,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:39,630 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 20:14:39,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:39,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181965260] [2024-10-11 20:14:39,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181965260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:14:39,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:14:39,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:14:39,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393964419] [2024-10-11 20:14:39,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:14:39,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:14:39,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:39,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:14:39,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:14:39,635 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20:14:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:39,674 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2024-10-11 20:14:39,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:14:39,675 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-10-11 20:14:39,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:39,676 INFO L225 Difference]: With dead ends: 29 [2024-10-11 20:14:39,676 INFO L226 Difference]: Without dead ends: 28 [2024-10-11 20:14:39,677 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 20:14:39,679 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:39,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-11 20:14:39,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2024-10-11 20:14:39,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 24 states have internal predecessors, (30), 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 20:14:39,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-10-11 20:14:39,690 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2024-10-11 20:14:39,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:39,691 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-10-11 20:14:39,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20:14:39,691 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-10-11 20:14:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 20:14:39,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:39,692 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 20:14:39,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 20:14:39,693 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:39,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1598769519, now seen corresponding path program 1 times [2024-10-11 20:14:39,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:39,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426132581] [2024-10-11 20:14:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:39,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:39,745 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 20:14:39,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:39,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426132581] [2024-10-11 20:14:39,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426132581] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:14:39,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:14:39,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:14:39,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031424515] [2024-10-11 20:14:39,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:14:39,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:14:39,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:39,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:14:39,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:14:39,748 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20:14:39,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:39,789 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2024-10-11 20:14:39,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:14:39,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-10-11 20:14:39,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:39,791 INFO L225 Difference]: With dead ends: 29 [2024-10-11 20:14:39,791 INFO L226 Difference]: Without dead ends: 28 [2024-10-11 20:14:39,792 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 20:14:39,793 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:39,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-11 20:14:39,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-11 20:14:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 27 states have internal predecessors, (34), 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 20:14:39,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2024-10-11 20:14:39,800 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2024-10-11 20:14:39,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:39,800 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2024-10-11 20:14:39,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 20:14:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-10-11 20:14:39,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 20:14:39,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:39,801 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:39,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 20:14:39,802 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:39,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:39,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1180786323, now seen corresponding path program 1 times [2024-10-11 20:14:39,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:39,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177483044] [2024-10-11 20:14:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:39,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:39,903 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 20:14:39,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:39,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177483044] [2024-10-11 20:14:39,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177483044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:14:39,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:14:39,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:14:39,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675655310] [2024-10-11 20:14:39,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:14:39,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:14:39,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:39,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:14:39,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:14:39,906 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 20:14:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:39,950 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2024-10-11 20:14:39,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:14:39,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) Word has length 8 [2024-10-11 20:14:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:39,952 INFO L225 Difference]: With dead ends: 28 [2024-10-11 20:14:39,952 INFO L226 Difference]: Without dead ends: 26 [2024-10-11 20:14:39,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:14:39,954 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:39,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-11 20:14:39,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2024-10-11 20:14:39,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.368421052631579) internal successors, (26), 21 states have internal predecessors, (26), 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 20:14:39,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2024-10-11 20:14:39,959 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 8 [2024-10-11 20:14:39,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:39,960 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2024-10-11 20:14:39,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 20:14:39,960 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2024-10-11 20:14:39,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 20:14:39,961 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:39,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:39,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 20:14:39,961 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:39,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:39,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2050329581, now seen corresponding path program 1 times [2024-10-11 20:14:39,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:39,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865540751] [2024-10-11 20:14:39,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:39,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:40,034 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 20:14:40,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:40,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865540751] [2024-10-11 20:14:40,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865540751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:14:40,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:14:40,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:14:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694537127] [2024-10-11 20:14:40,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:14:40,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:14:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:14:40,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:14:40,038 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 20:14:40,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:40,088 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2024-10-11 20:14:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:14:40,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) Word has length 9 [2024-10-11 20:14:40,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:40,092 INFO L225 Difference]: With dead ends: 36 [2024-10-11 20:14:40,092 INFO L226 Difference]: Without dead ends: 34 [2024-10-11 20:14:40,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:14:40,093 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 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 20:14:40,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-11 20:14:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2024-10-11 20:14:40,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 30 states have internal predecessors, (38), 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 20:14:40,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2024-10-11 20:14:40,107 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 9 [2024-10-11 20:14:40,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:40,107 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2024-10-11 20:14:40,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 20:14:40,108 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-10-11 20:14:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 20:14:40,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:40,108 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2024-10-11 20:14:40,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 20:14:40,109 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:40,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash -202122184, now seen corresponding path program 1 times [2024-10-11 20:14:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:40,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802544167] [2024-10-11 20:14:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:40,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:40,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802544167] [2024-10-11 20:14:40,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802544167] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:40,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826310811] [2024-10-11 20:14:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:40,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:40,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:40,159 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 20:14:40,161 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 20:14:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:40,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:14:40,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:40,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:40,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:40,298 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:40,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826310811] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:40,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:40,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-11 20:14:40,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370859390] [2024-10-11 20:14:40,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:40,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:14:40,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:40,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:14:40,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:14:40,302 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 20:14:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:40,352 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2024-10-11 20:14:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:14:40,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 10 [2024-10-11 20:14:40,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:40,353 INFO L225 Difference]: With dead ends: 52 [2024-10-11 20:14:40,353 INFO L226 Difference]: Without dead ends: 51 [2024-10-11 20:14:40,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 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 20:14:40,354 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 16 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:40,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 30 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:40,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-11 20:14:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 43. [2024-10-11 20:14:40,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.325) internal successors, (53), 42 states have internal predecessors, (53), 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 20:14:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2024-10-11 20:14:40,370 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 10 [2024-10-11 20:14:40,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:40,371 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2024-10-11 20:14:40,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 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 20:14:40,371 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2024-10-11 20:14:40,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 20:14:40,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:40,372 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:40,387 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 20:14:40,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:40,573 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:40,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:40,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1021578652, now seen corresponding path program 1 times [2024-10-11 20:14:40,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:40,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117560098] [2024-10-11 20:14:40,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:40,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:40,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:40,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117560098] [2024-10-11 20:14:40,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117560098] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:40,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123080679] [2024-10-11 20:14:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:40,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:40,635 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 20:14:40,637 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 20:14:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:40,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:14:40,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:40,698 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:40,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123080679] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:40,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:40,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-11 20:14:40,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042368826] [2024-10-11 20:14:40,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:40,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:14:40,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:40,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:14:40,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:14:40,735 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 20:14:40,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:40,780 INFO L93 Difference]: Finished difference Result 89 states and 116 transitions. [2024-10-11 20:14:40,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:14:40,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 11 [2024-10-11 20:14:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:40,782 INFO L225 Difference]: With dead ends: 89 [2024-10-11 20:14:40,783 INFO L226 Difference]: Without dead ends: 88 [2024-10-11 20:14:40,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 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 20:14:40,786 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:40,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 44 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:40,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-11 20:14:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2024-10-11 20:14:40,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 82 states have (on average 1.3414634146341464) internal successors, (110), 84 states have internal predecessors, (110), 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 20:14:40,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2024-10-11 20:14:40,800 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 11 [2024-10-11 20:14:40,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:40,801 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2024-10-11 20:14:40,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 20:14:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2024-10-11 20:14:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 20:14:40,801 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:40,802 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:40,817 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 20:14:41,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:41,003 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:41,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:41,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1656401745, now seen corresponding path program 1 times [2024-10-11 20:14:41,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:41,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415364752] [2024-10-11 20:14:41,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:41,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:41,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:14:41,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:41,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415364752] [2024-10-11 20:14:41,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415364752] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:41,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538173899] [2024-10-11 20:14:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:41,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:41,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:41,042 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 20:14:41,044 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 20:14:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:41,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:14:41,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:41,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:41,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:41,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538173899] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:41,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:41,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 4, 4] total 8 [2024-10-11 20:14:41,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653375627] [2024-10-11 20:14:41,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:41,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 20:14:41,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:41,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 20:14:41,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:14:41,167 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 20:14:41,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:41,289 INFO L93 Difference]: Finished difference Result 148 states and 197 transitions. [2024-10-11 20:14:41,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:14:41,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 12 [2024-10-11 20:14:41,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:41,291 INFO L225 Difference]: With dead ends: 148 [2024-10-11 20:14:41,293 INFO L226 Difference]: Without dead ends: 146 [2024-10-11 20:14:41,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-10-11 20:14:41,294 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 40 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:41,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 18 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:14:41,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-11 20:14:41,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2024-10-11 20:14:41,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.3166666666666667) internal successors, (158), 121 states have internal predecessors, (158), 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 20:14:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 158 transitions. [2024-10-11 20:14:41,319 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 158 transitions. Word has length 12 [2024-10-11 20:14:41,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:41,320 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 158 transitions. [2024-10-11 20:14:41,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 20:14:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 158 transitions. [2024-10-11 20:14:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 20:14:41,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:41,323 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:41,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:14:41,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:41,524 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:41,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:41,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1008557569, now seen corresponding path program 1 times [2024-10-11 20:14:41,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:41,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097185225] [2024-10-11 20:14:41,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:41,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:14:41,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:41,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097185225] [2024-10-11 20:14:41,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097185225] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:41,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215346072] [2024-10-11 20:14:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:41,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:41,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:41,596 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 20:14:41,597 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 20:14:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:41,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:14:41,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:14:41,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:14:41,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215346072] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:41,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:41,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-10-11 20:14:41,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953977130] [2024-10-11 20:14:41,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:41,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:14:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:41,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:14:41,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:14:41,703 INFO L87 Difference]: Start difference. First operand 122 states and 158 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20:14:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:41,744 INFO L93 Difference]: Finished difference Result 189 states and 244 transitions. [2024-10-11 20:14:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:14:41,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 18 [2024-10-11 20:14:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:41,746 INFO L225 Difference]: With dead ends: 189 [2024-10-11 20:14:41,746 INFO L226 Difference]: Without dead ends: 129 [2024-10-11 20:14:41,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:14:41,747 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:41,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:41,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-10-11 20:14:41,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2024-10-11 20:14:41,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 126 states have (on average 1.2857142857142858) internal successors, (162), 127 states have internal predecessors, (162), 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 20:14:41,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 162 transitions. [2024-10-11 20:14:41,766 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 162 transitions. Word has length 18 [2024-10-11 20:14:41,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:41,767 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 162 transitions. [2024-10-11 20:14:41,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20:14:41,767 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 162 transitions. [2024-10-11 20:14:41,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 20:14:41,768 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:41,768 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:41,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 20:14:41,968 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,SelfDestructingSolverStorable9 [2024-10-11 20:14:41,968 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:41,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:41,969 INFO L85 PathProgramCache]: Analyzing trace with hash -208336255, now seen corresponding path program 2 times [2024-10-11 20:14:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:41,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477049463] [2024-10-11 20:14:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:41,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:14:42,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:42,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477049463] [2024-10-11 20:14:42,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477049463] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:42,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1296850677] [2024-10-11 20:14:42,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:14:42,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:42,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:42,017 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 20:14:42,019 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 20:14:42,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 20:14:42,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:42,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:14:42,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:14:42,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:14:42,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1296850677] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:42,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:42,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-10-11 20:14:42,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754496406] [2024-10-11 20:14:42,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:42,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:14:42,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:42,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:14:42,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:14:42,118 INFO L87 Difference]: Start difference. First operand 128 states and 162 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20:14:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:42,141 INFO L93 Difference]: Finished difference Result 129 states and 162 transitions. [2024-10-11 20:14:42,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:14:42,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-10-11 20:14:42,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:42,143 INFO L225 Difference]: With dead ends: 129 [2024-10-11 20:14:42,143 INFO L226 Difference]: Without dead ends: 110 [2024-10-11 20:14:42,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:14:42,144 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:42,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:42,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-11 20:14:42,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-10-11 20:14:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.2962962962962963) internal successors, (140), 109 states have internal predecessors, (140), 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 20:14:42,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2024-10-11 20:14:42,157 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 18 [2024-10-11 20:14:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:42,157 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2024-10-11 20:14:42,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20:14:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2024-10-11 20:14:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 20:14:42,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:42,158 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:42,175 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 20:14:42,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 20:14:42,363 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:42,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:42,363 INFO L85 PathProgramCache]: Analyzing trace with hash 177448344, now seen corresponding path program 1 times [2024-10-11 20:14:42,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:42,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891812650] [2024-10-11 20:14:42,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:42,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:42,440 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:42,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:42,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891812650] [2024-10-11 20:14:42,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891812650] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:42,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336190546] [2024-10-11 20:14:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:42,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:42,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:42,442 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 20:14:42,444 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 20:14:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:42,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 20:14:42,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:42,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:42,599 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:42,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336190546] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:42,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:42,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-11 20:14:42,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964969353] [2024-10-11 20:14:42,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:42,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 20:14:42,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:42,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 20:14:42,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:14:42,600 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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 20:14:42,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:42,705 INFO L93 Difference]: Finished difference Result 265 states and 332 transitions. [2024-10-11 20:14:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 20:14:42,705 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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 20 [2024-10-11 20:14:42,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:42,706 INFO L225 Difference]: With dead ends: 265 [2024-10-11 20:14:42,706 INFO L226 Difference]: Without dead ends: 264 [2024-10-11 20:14:42,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-10-11 20:14:42,707 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:42,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 28 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:14:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-10-11 20:14:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 214. [2024-10-11 20:14:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 212 states have (on average 1.2924528301886793) internal successors, (274), 213 states have internal predecessors, (274), 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 20:14:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 274 transitions. [2024-10-11 20:14:42,728 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 274 transitions. Word has length 20 [2024-10-11 20:14:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:42,729 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 274 transitions. [2024-10-11 20:14:42,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.0) internal successors, (39), 14 states have internal predecessors, (39), 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 20:14:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2024-10-11 20:14:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 20:14:42,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:42,730 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-10-11 20:14:42,747 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 20:14:42,934 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,SelfDestructingSolverStorable11 [2024-10-11 20:14:42,935 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:42,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:42,935 INFO L85 PathProgramCache]: Analyzing trace with hash -568918959, now seen corresponding path program 2 times [2024-10-11 20:14:42,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:42,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189700138] [2024-10-11 20:14:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:42,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:42,978 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-11 20:14:42,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:42,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189700138] [2024-10-11 20:14:42,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189700138] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:42,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602654792] [2024-10-11 20:14:42,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:14:42,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:42,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:42,981 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 20:14:42,982 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 20:14:43,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-11 20:14:43,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:43,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:14:43,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:43,060 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-11 20:14:43,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-11 20:14:43,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602654792] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:43,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:43,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2024-10-11 20:14:43,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642289346] [2024-10-11 20:14:43,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:43,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:14:43,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:43,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:14:43,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:14:43,108 INFO L87 Difference]: Start difference. First operand 214 states and 274 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 20:14:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:43,134 INFO L93 Difference]: Finished difference Result 214 states and 274 transitions. [2024-10-11 20:14:43,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:14:43,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Word has length 26 [2024-10-11 20:14:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:43,138 INFO L225 Difference]: With dead ends: 214 [2024-10-11 20:14:43,138 INFO L226 Difference]: Without dead ends: 213 [2024-10-11 20:14:43,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:14:43,139 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:43,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 17 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:43,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-11 20:14:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 68. [2024-10-11 20:14:43,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 67 states have internal predecessors, (82), 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 20:14:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2024-10-11 20:14:43,150 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 26 [2024-10-11 20:14:43,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:43,151 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2024-10-11 20:14:43,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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 20:14:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2024-10-11 20:14:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 20:14:43,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:43,153 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:43,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 20:14:43,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:43,357 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:43,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:43,358 INFO L85 PathProgramCache]: Analyzing trace with hash 520429242, now seen corresponding path program 2 times [2024-10-11 20:14:43,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:43,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20652719] [2024-10-11 20:14:43,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:43,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 20:14:43,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:43,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20652719] [2024-10-11 20:14:43,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20652719] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:43,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394520976] [2024-10-11 20:14:43,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:14:43,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:43,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:43,474 INFO L229 MonitoredProcess]: Starting monitored process 9 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 20:14:43,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 20:14:43,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:14:43,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:43,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:14:43,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-11 20:14:43,547 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:14:43,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394520976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:14:43,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:14:43,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-11 20:14:43,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268875899] [2024-10-11 20:14:43,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:14:43,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:14:43,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:43,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:14:43,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:14:43,548 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 20:14:43,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:43,585 INFO L93 Difference]: Finished difference Result 130 states and 161 transitions. [2024-10-11 20:14:43,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:14:43,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 33 [2024-10-11 20:14:43,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:43,587 INFO L225 Difference]: With dead ends: 130 [2024-10-11 20:14:43,587 INFO L226 Difference]: Without dead ends: 75 [2024-10-11 20:14:43,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 20:14:43,588 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:43,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 22 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:14:43,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-11 20:14:43,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-11 20:14:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 74 states have internal predecessors, (89), 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 20:14:43,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 89 transitions. [2024-10-11 20:14:43,595 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 89 transitions. Word has length 33 [2024-10-11 20:14:43,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:43,595 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 89 transitions. [2024-10-11 20:14:43,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 20:14:43,596 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 89 transitions. [2024-10-11 20:14:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 20:14:43,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:43,596 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-11 20:14:43,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 20:14:43,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 20:14:43,798 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:43,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:43,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1744570776, now seen corresponding path program 3 times [2024-10-11 20:14:43,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:43,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576898453] [2024-10-11 20:14:43,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:43,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 20:14:43,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:43,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576898453] [2024-10-11 20:14:43,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576898453] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:43,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128658979] [2024-10-11 20:14:43,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:14:43,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:43,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:43,929 INFO L229 MonitoredProcess]: Starting monitored process 10 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 20:14:43,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 20:14:43,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 20:14:43,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:43,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:14:43,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:44,046 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 20:14:44,046 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:44,131 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-11 20:14:44,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128658979] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:44,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:44,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 3, 3] total 14 [2024-10-11 20:14:44,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323142416] [2024-10-11 20:14:44,132 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:44,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-11 20:14:44,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:44,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-11 20:14:44,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2024-10-11 20:14:44,133 INFO L87 Difference]: Start difference. First operand 75 states and 89 transitions. Second operand has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 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 20:14:44,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:44,346 INFO L93 Difference]: Finished difference Result 122 states and 142 transitions. [2024-10-11 20:14:44,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 20:14:44,346 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 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 35 [2024-10-11 20:14:44,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:44,347 INFO L225 Difference]: With dead ends: 122 [2024-10-11 20:14:44,347 INFO L226 Difference]: Without dead ends: 41 [2024-10-11 20:14:44,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2024-10-11 20:14:44,348 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:44,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:14:44,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-11 20:14:44,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2024-10-11 20:14:44,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 38 states have internal predecessors, (40), 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 20:14:44,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2024-10-11 20:14:44,353 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 35 [2024-10-11 20:14:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:44,353 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2024-10-11 20:14:44,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.142857142857143) internal successors, (58), 15 states have internal predecessors, (58), 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 20:14:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2024-10-11 20:14:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-11 20:14:44,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:44,354 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:44,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 20:14:44,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:44,555 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:44,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:44,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2059888154, now seen corresponding path program 3 times [2024-10-11 20:14:44,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:44,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338683485] [2024-10-11 20:14:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:44,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:44,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338683485] [2024-10-11 20:14:44,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338683485] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402795584] [2024-10-11 20:14:44,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:14:44,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:44,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:44,698 INFO L229 MonitoredProcess]: Starting monitored process 11 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 20:14:44,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 20:14:44,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-10-11 20:14:44,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:44,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-11 20:14:44,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:44,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:45,020 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:45,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402795584] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:45,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:45,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-10-11 20:14:45,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762019289] [2024-10-11 20:14:45,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:45,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 20:14:45,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:45,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 20:14:45,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=204, Invalid=348, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:14:45,022 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand has 24 states, 23 states have (on average 3.0) internal successors, (69), 24 states have internal predecessors, (69), 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 20:14:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:45,142 INFO L93 Difference]: Finished difference Result 100 states and 113 transitions. [2024-10-11 20:14:45,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-11 20:14:45,143 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0) internal successors, (69), 24 states have internal predecessors, (69), 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 35 [2024-10-11 20:14:45,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:45,144 INFO L225 Difference]: With dead ends: 100 [2024-10-11 20:14:45,144 INFO L226 Difference]: Without dead ends: 71 [2024-10-11 20:14:45,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=204, Invalid=348, Unknown=0, NotChecked=0, Total=552 [2024-10-11 20:14:45,145 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 26 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:45,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:14:45,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-11 20:14:45,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2024-10-11 20:14:45,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 68 states have internal predecessors, (70), 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 20:14:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2024-10-11 20:14:45,151 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 35 [2024-10-11 20:14:45,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:45,152 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2024-10-11 20:14:45,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0) internal successors, (69), 24 states have internal predecessors, (69), 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 20:14:45,152 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2024-10-11 20:14:45,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 20:14:45,153 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:45,153 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:45,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-11 20:14:45,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 20:14:45,353 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:45,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1173896614, now seen corresponding path program 4 times [2024-10-11 20:14:45,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:45,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435952784] [2024-10-11 20:14:45,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:45,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:45,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435952784] [2024-10-11 20:14:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435952784] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69196994] [2024-10-11 20:14:45,742 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 20:14:45,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:45,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:45,744 INFO L229 MonitoredProcess]: Starting monitored process 12 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 20:14:45,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 20:14:45,791 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 20:14:45,791 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:45,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-11 20:14:45,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:45,886 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:45,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 0 proven. 478 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:46,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69196994] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:46,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:46,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2024-10-11 20:14:46,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605980514] [2024-10-11 20:14:46,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:46,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-11 20:14:46,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:46,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-11 20:14:46,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=794, Invalid=1098, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 20:14:46,504 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 44 states, 43 states have (on average 3.0) internal successors, (129), 44 states have internal predecessors, (129), 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 20:14:46,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:46,703 INFO L93 Difference]: Finished difference Result 170 states and 193 transitions. [2024-10-11 20:14:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-11 20:14:46,703 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.0) internal successors, (129), 44 states have internal predecessors, (129), 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 65 [2024-10-11 20:14:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:46,705 INFO L225 Difference]: With dead ends: 170 [2024-10-11 20:14:46,705 INFO L226 Difference]: Without dead ends: 131 [2024-10-11 20:14:46,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=794, Invalid=1098, Unknown=0, NotChecked=0, Total=1892 [2024-10-11 20:14:46,707 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 50 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:46,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 42 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:14:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-11 20:14:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2024-10-11 20:14:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.015625) internal successors, (130), 128 states have internal predecessors, (130), 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 20:14:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2024-10-11 20:14:46,718 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 65 [2024-10-11 20:14:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:46,719 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2024-10-11 20:14:46,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.0) internal successors, (129), 44 states have internal predecessors, (129), 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 20:14:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2024-10-11 20:14:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-11 20:14:46,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:46,721 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:46,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-11 20:14:46,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 20:14:46,926 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:46,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:46,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1841801946, now seen corresponding path program 5 times [2024-10-11 20:14:46,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:46,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094136528] [2024-10-11 20:14:46,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:46,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:48,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:48,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:48,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094136528] [2024-10-11 20:14:48,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094136528] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:48,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902013377] [2024-10-11 20:14:48,209 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 20:14:48,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:48,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:48,211 INFO L229 MonitoredProcess]: Starting monitored process 13 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 20:14:48,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 20:14:48,285 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 40 check-sat command(s) [2024-10-11 20:14:48,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:48,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-10-11 20:14:48,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:48,469 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:14:50,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2148 backedges. 0 proven. 2148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:50,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902013377] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:14:50,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:14:50,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 83 [2024-10-11 20:14:50,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033876682] [2024-10-11 20:14:50,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:14:50,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2024-10-11 20:14:50,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:14:50,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2024-10-11 20:14:50,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3174, Invalid=3798, Unknown=0, NotChecked=0, Total=6972 [2024-10-11 20:14:50,477 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand has 84 states, 83 states have (on average 3.0) internal successors, (249), 84 states have internal predecessors, (249), 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 20:14:50,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:14:50,922 INFO L93 Difference]: Finished difference Result 310 states and 353 transitions. [2024-10-11 20:14:50,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2024-10-11 20:14:50,923 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 3.0) internal successors, (249), 84 states have internal predecessors, (249), 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 125 [2024-10-11 20:14:50,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:14:50,924 INFO L225 Difference]: With dead ends: 310 [2024-10-11 20:14:50,924 INFO L226 Difference]: Without dead ends: 251 [2024-10-11 20:14:50,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3174, Invalid=3798, Unknown=0, NotChecked=0, Total=6972 [2024-10-11 20:14:50,927 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 134 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 20:14:50,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 67 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 20:14:50,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-10-11 20:14:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2024-10-11 20:14:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.0080645161290323) internal successors, (250), 248 states have internal predecessors, (250), 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 20:14:50,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 250 transitions. [2024-10-11 20:14:50,954 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 250 transitions. Word has length 125 [2024-10-11 20:14:50,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:14:50,954 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 250 transitions. [2024-10-11 20:14:50,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 3.0) internal successors, (249), 84 states have internal predecessors, (249), 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 20:14:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 250 transitions. [2024-10-11 20:14:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-10-11 20:14:50,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:14:50,957 INFO L215 NwaCegarLoop]: trace histogram [78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:14:50,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-11 20:14:51,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 20:14:51,162 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:14:51,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:14:51,162 INFO L85 PathProgramCache]: Analyzing trace with hash -625722406, now seen corresponding path program 6 times [2024-10-11 20:14:51,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:14:51,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48925772] [2024-10-11 20:14:51,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:14:51,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:14:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:54,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:54,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48925772] [2024-10-11 20:14:54,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48925772] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:54,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358939639] [2024-10-11 20:14:54,802 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 20:14:54,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:54,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:54,804 INFO L229 MonitoredProcess]: Starting monitored process 14 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 20:14:54,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 20:14:54,915 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 80 check-sat command(s) [2024-10-11 20:14:54,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:14:54,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 82 conjuncts are in the unsatisfiable core [2024-10-11 20:14:54,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:14:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:55,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:15:01,661 INFO L134 CoverageAnalysis]: Checked inductivity of 9088 backedges. 0 proven. 9088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:15:01,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358939639] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:15:01,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:15:01,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82, 82] total 163 [2024-10-11 20:15:01,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506946905] [2024-10-11 20:15:01,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:15:01,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2024-10-11 20:15:01,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:15:01,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2024-10-11 20:15:01,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12734, Invalid=13998, Unknown=0, NotChecked=0, Total=26732 [2024-10-11 20:15:01,672 INFO L87 Difference]: Start difference. First operand 249 states and 250 transitions. Second operand has 164 states, 163 states have (on average 3.0) internal successors, (489), 164 states have internal predecessors, (489), 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 20:15:02,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:15:02,692 INFO L93 Difference]: Finished difference Result 590 states and 673 transitions. [2024-10-11 20:15:02,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2024-10-11 20:15:02,693 INFO L78 Accepts]: Start accepts. Automaton has has 164 states, 163 states have (on average 3.0) internal successors, (489), 164 states have internal predecessors, (489), 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 245 [2024-10-11 20:15:02,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:15:02,695 INFO L225 Difference]: With dead ends: 590 [2024-10-11 20:15:02,695 INFO L226 Difference]: Without dead ends: 491 [2024-10-11 20:15:02,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=12734, Invalid=13998, Unknown=0, NotChecked=0, Total=26732 [2024-10-11 20:15:02,700 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 328 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 20:15:02,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 42 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 20:15:02,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-10-11 20:15:02,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 489. [2024-10-11 20:15:02,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.0040983606557377) internal successors, (490), 488 states have internal predecessors, (490), 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 20:15:02,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 490 transitions. [2024-10-11 20:15:02,730 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 490 transitions. Word has length 245 [2024-10-11 20:15:02,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:15:02,730 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 490 transitions. [2024-10-11 20:15:02,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 163 states have (on average 3.0) internal successors, (489), 164 states have internal predecessors, (489), 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 20:15:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 490 transitions. [2024-10-11 20:15:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-10-11 20:15:02,744 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:15:02,744 INFO L215 NwaCegarLoop]: trace histogram [158, 158, 158, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:15:02,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-11 20:15:02,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:15:02,945 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:15:02,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:15:02,946 INFO L85 PathProgramCache]: Analyzing trace with hash 364928474, now seen corresponding path program 7 times [2024-10-11 20:15:02,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:15:02,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990700713] [2024-10-11 20:15:02,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:15:02,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:15:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:15:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 37368 backedges. 0 proven. 37368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:15:16,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:15:16,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990700713] [2024-10-11 20:15:16,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990700713] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:15:16,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542572186] [2024-10-11 20:15:16,310 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 20:15:16,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:15:16,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:15:16,311 INFO L229 MonitoredProcess]: Starting monitored process 15 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 20:15:16,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 20:15:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:15:16,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 162 conjuncts are in the unsatisfiable core [2024-10-11 20:15:16,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:15:16,945 INFO L134 CoverageAnalysis]: Checked inductivity of 37368 backedges. 0 proven. 37368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:15:16,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:15:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 37368 backedges. 0 proven. 37368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:15:42,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542572186] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:15:42,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:15:42,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 162, 162] total 323 [2024-10-11 20:15:42,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889446556] [2024-10-11 20:15:42,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:15:42,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 324 states [2024-10-11 20:15:42,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:15:42,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 324 interpolants. [2024-10-11 20:15:42,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51054, Invalid=53598, Unknown=0, NotChecked=0, Total=104652 [2024-10-11 20:15:42,398 INFO L87 Difference]: Start difference. First operand 489 states and 490 transitions. Second operand has 324 states, 323 states have (on average 3.0) internal successors, (969), 324 states have internal predecessors, (969), 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 20:15:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:15:47,422 INFO L93 Difference]: Finished difference Result 1150 states and 1313 transitions. [2024-10-11 20:15:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 324 states. [2024-10-11 20:15:47,423 INFO L78 Accepts]: Start accepts. Automaton has has 324 states, 323 states have (on average 3.0) internal successors, (969), 324 states have internal predecessors, (969), 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 485 [2024-10-11 20:15:47,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:15:47,427 INFO L225 Difference]: With dead ends: 1150 [2024-10-11 20:15:47,427 INFO L226 Difference]: Without dead ends: 971 [2024-10-11 20:15:47,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1130 GetRequests, 808 SyntacticMatches, 0 SemanticMatches, 322 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1109 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=51054, Invalid=53598, Unknown=0, NotChecked=0, Total=104652 [2024-10-11 20:15:47,432 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 665 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 20:15:47,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 47 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 20:15:47,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-10-11 20:15:47,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2024-10-11 20:15:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 968 states have (on average 1.0020661157024793) internal successors, (970), 968 states have internal predecessors, (970), 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 20:15:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 970 transitions. [2024-10-11 20:15:47,488 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 970 transitions. Word has length 485 [2024-10-11 20:15:47,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:15:47,489 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 970 transitions. [2024-10-11 20:15:47,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 324 states, 323 states have (on average 3.0) internal successors, (969), 324 states have internal predecessors, (969), 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 20:15:47,490 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 970 transitions. [2024-10-11 20:15:47,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2024-10-11 20:15:47,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:15:47,514 INFO L215 NwaCegarLoop]: trace histogram [318, 318, 318, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:15:47,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-11 20:15:47,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:15:47,715 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:15:47,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:15:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash -324754982, now seen corresponding path program 8 times [2024-10-11 20:15:47,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:15:47,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137643166] [2024-10-11 20:15:47,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:15:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:15:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat