./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_11_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_11_good.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cfdfbe6a50a862946c25117250d321c1471b6426f342730318551b622594472a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 15:11:51,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 15:11:51,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-13 15:11:51,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 15:11:51,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 15:11:51,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 15:11:51,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 15:11:51,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 15:11:51,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 15:11:51,171 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 15:11:51,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 15:11:51,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 15:11:51,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 15:11:51,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 15:11:51,172 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 15:11:51,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 15:11:51,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 15:11:51,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 15:11:51,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 15:11:51,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 15:11:51,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 15:11:51,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 15:11:51,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 15:11:51,178 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 15:11:51,178 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 15:11:51,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 15:11:51,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 15:11:51,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 15:11:51,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 15:11:51,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 15:11:51,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 15:11:51,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 15:11:51,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 15:11:51,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 15:11:51,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 15:11:51,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 15:11:51,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 15:11:51,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 15:11:51,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 15:11:51,181 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 15:11:51,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 15:11:51,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfdfbe6a50a862946c25117250d321c1471b6426f342730318551b622594472a [2024-10-13 15:11:51,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 15:11:51,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 15:11:51,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 15:11:51,457 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 15:11:51,458 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 15:11:51,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_11_good.i [2024-10-13 15:11:52,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 15:11:52,964 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 15:11:52,964 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_11_good.i [2024-10-13 15:11:52,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce835421a/0aa35f41fade449a941810c494ccc3c1/FLAG1f31f1d08 [2024-10-13 15:11:52,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce835421a/0aa35f41fade449a941810c494ccc3c1 [2024-10-13 15:11:53,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 15:11:53,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 15:11:53,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 15:11:53,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 15:11:53,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 15:11:53,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aaf2e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53, skipping insertion in model container [2024-10-13 15:11:53,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 15:11:53,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 15:11:53,672 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 15:11:53,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 15:11:53,840 INFO L204 MainTranslator]: Completed translation [2024-10-13 15:11:53,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53 WrapperNode [2024-10-13 15:11:53,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 15:11:53,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 15:11:53,842 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 15:11:53,842 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 15:11:53,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,903 INFO L138 Inliner]: procedures = 501, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 133 [2024-10-13 15:11:53,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 15:11:53,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 15:11:53,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 15:11:53,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 15:11:53,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,938 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 15:11:53,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 15:11:53,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 15:11:53,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 15:11:53,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 15:11:53,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (1/1) ... [2024-10-13 15:11:53,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 15:11:53,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 15:11:53,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 15:11:53,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 15:11:54,064 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-10-13 15:11:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-10-13 15:11:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-10-13 15:11:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-10-13 15:11:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2024-10-13 15:11:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2024-10-13 15:11:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 15:11:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 15:11:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 15:11:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsFalse [2024-10-13 15:11:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsFalse [2024-10-13 15:11:54,180 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 15:11:54,182 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 15:11:54,361 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-10-13 15:11:54,361 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 15:11:54,393 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 15:11:54,394 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 15:11:54,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:11:54 BoogieIcfgContainer [2024-10-13 15:11:54,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 15:11:54,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 15:11:54,397 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 15:11:54,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 15:11:54,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 03:11:53" (1/3) ... [2024-10-13 15:11:54,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc9b13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:11:54, skipping insertion in model container [2024-10-13 15:11:54,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:11:53" (2/3) ... [2024-10-13 15:11:54,401 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc9b13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:11:54, skipping insertion in model container [2024-10-13 15:11:54,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:11:54" (3/3) ... [2024-10-13 15:11:54,403 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_max_postinc_11_good.i [2024-10-13 15:11:54,418 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 15:11:54,418 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-13 15:11:54,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 15:11:54,469 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;@38b89d35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 15:11:54,469 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-13 15:11:54,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 55 states have internal predecessors, (66), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-13 15:11:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-13 15:11:54,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:54,480 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:54,480 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:54,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:54,485 INFO L85 PathProgramCache]: Analyzing trace with hash 55766273, now seen corresponding path program 1 times [2024-10-13 15:11:54,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:54,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803312896] [2024-10-13 15:11:54,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:54,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:54,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:54,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:54,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 15:11:54,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:54,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803312896] [2024-10-13 15:11:54,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803312896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:54,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 15:11:54,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 15:11:54,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012283793] [2024-10-13 15:11:54,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:54,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 15:11:54,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 15:11:54,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 15:11:54,795 INFO L87 Difference]: Start difference. First operand has 78 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 55 states have internal predecessors, (66), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 15:11:54,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:54,848 INFO L93 Difference]: Finished difference Result 149 states and 193 transitions. [2024-10-13 15:11:54,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 15:11:54,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-10-13 15:11:54,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:54,855 INFO L225 Difference]: With dead ends: 149 [2024-10-13 15:11:54,856 INFO L226 Difference]: Without dead ends: 79 [2024-10-13 15:11:54,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 15:11:54,863 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 2 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:54,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 189 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:54,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-13 15:11:54,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 76. [2024-10-13 15:11:54,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 54 states have internal predecessors, (65), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 15:11:54,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2024-10-13 15:11:54,901 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 19 [2024-10-13 15:11:54,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:54,902 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2024-10-13 15:11:54,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 15:11:54,903 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2024-10-13 15:11:54,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-13 15:11:54,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:54,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:54,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 15:11:54,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:54,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:54,905 INFO L85 PathProgramCache]: Analyzing trace with hash -753580353, now seen corresponding path program 1 times [2024-10-13 15:11:54,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:54,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956026191] [2024-10-13 15:11:54,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:54,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:54,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 15:11:55,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:55,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956026191] [2024-10-13 15:11:55,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956026191] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:55,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 15:11:55,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 15:11:55,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030555283] [2024-10-13 15:11:55,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:55,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:55,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:55,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:55,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:55,047 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 15:11:55,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:55,081 INFO L93 Difference]: Finished difference Result 132 states and 169 transitions. [2024-10-13 15:11:55,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:55,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-10-13 15:11:55,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:55,082 INFO L225 Difference]: With dead ends: 132 [2024-10-13 15:11:55,082 INFO L226 Difference]: Without dead ends: 66 [2024-10-13 15:11:55,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:55,084 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:55,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:55,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-13 15:11:55,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-13 15:11:55,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-13 15:11:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2024-10-13 15:11:55,094 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 19 [2024-10-13 15:11:55,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:55,094 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2024-10-13 15:11:55,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-13 15:11:55,094 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2024-10-13 15:11:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-13 15:11:55,096 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:55,096 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:55,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 15:11:55,096 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:55,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:55,097 INFO L85 PathProgramCache]: Analyzing trace with hash -447765931, now seen corresponding path program 1 times [2024-10-13 15:11:55,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:55,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142828444] [2024-10-13 15:11:55,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:55,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 15:11:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 15:11:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-13 15:11:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 15:11:55,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142828444] [2024-10-13 15:11:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142828444] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:55,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 15:11:55,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 15:11:55,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554839305] [2024-10-13 15:11:55,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:55,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:55,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:55,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:55,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:55,253 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 15:11:55,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:55,280 INFO L93 Difference]: Finished difference Result 118 states and 148 transitions. [2024-10-13 15:11:55,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:55,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 36 [2024-10-13 15:11:55,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:55,282 INFO L225 Difference]: With dead ends: 118 [2024-10-13 15:11:55,282 INFO L226 Difference]: Without dead ends: 64 [2024-10-13 15:11:55,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:55,283 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:55,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-13 15:11:55,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-10-13 15:11:55,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 40 states have (on average 1.3) internal successors, (52), 45 states have internal predecessors, (52), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 15:11:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2024-10-13 15:11:55,291 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 36 [2024-10-13 15:11:55,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:55,291 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2024-10-13 15:11:55,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 15:11:55,292 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2024-10-13 15:11:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-13 15:11:55,292 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:55,293 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:55,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 15:11:55,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:55,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:55,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1249086082, now seen corresponding path program 1 times [2024-10-13 15:11:55,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:55,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151893590] [2024-10-13 15:11:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:55,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 15:11:55,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:55,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151893590] [2024-10-13 15:11:55,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151893590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:55,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 15:11:55,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 15:11:55,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562178305] [2024-10-13 15:11:55,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:55,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 15:11:55,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:55,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 15:11:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 15:11:55,356 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 15:11:55,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:55,382 INFO L93 Difference]: Finished difference Result 111 states and 136 transitions. [2024-10-13 15:11:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 15:11:55,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2024-10-13 15:11:55,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:55,385 INFO L225 Difference]: With dead ends: 111 [2024-10-13 15:11:55,385 INFO L226 Difference]: Without dead ends: 69 [2024-10-13 15:11:55,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 15:11:55,386 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 1 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:55,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 152 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:55,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-13 15:11:55,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2024-10-13 15:11:55,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 43 states have (on average 1.302325581395349) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-13 15:11:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 86 transitions. [2024-10-13 15:11:55,400 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 86 transitions. Word has length 37 [2024-10-13 15:11:55,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:55,400 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 86 transitions. [2024-10-13 15:11:55,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 15:11:55,400 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 86 transitions. [2024-10-13 15:11:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-13 15:11:55,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:55,401 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:55,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 15:11:55,402 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:55,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash -2058432708, now seen corresponding path program 1 times [2024-10-13 15:11:55,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:55,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116176323] [2024-10-13 15:11:55,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:55,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 15:11:55,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:55,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116176323] [2024-10-13 15:11:55,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116176323] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 15:11:55,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393814335] [2024-10-13 15:11:55,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:55,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 15:11:55,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 15:11:55,498 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 15:11:55,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 15:11:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 15:11:55,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 15:11:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 15:11:55,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 15:11:55,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393814335] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:55,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 15:11:55,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 15:11:55,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783869358] [2024-10-13 15:11:55,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:55,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:55,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:55,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:55,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:55,608 INFO L87 Difference]: Start difference. First operand 68 states and 86 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 15:11:55,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:55,632 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2024-10-13 15:11:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:55,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2024-10-13 15:11:55,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:55,633 INFO L225 Difference]: With dead ends: 106 [2024-10-13 15:11:55,633 INFO L226 Difference]: Without dead ends: 58 [2024-10-13 15:11:55,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:55,635 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:55,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 192 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:55,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-13 15:11:55,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-13 15:11:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 40 states have internal predecessors, (45), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 15:11:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 71 transitions. [2024-10-13 15:11:55,640 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 71 transitions. Word has length 37 [2024-10-13 15:11:55,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:55,641 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 71 transitions. [2024-10-13 15:11:55,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-13 15:11:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 71 transitions. [2024-10-13 15:11:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-13 15:11:55,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:55,642 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:55,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 15:11:55,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 15:11:55,847 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:55,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:55,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1531266017, now seen corresponding path program 1 times [2024-10-13 15:11:55,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:55,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215173405] [2024-10-13 15:11:55,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:55,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 15:11:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 15:11:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-13 15:11:55,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:55,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215173405] [2024-10-13 15:11:55,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215173405] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 15:11:55,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541193768] [2024-10-13 15:11:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:55,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 15:11:55,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 15:11:55,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 15:11:55,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 15:11:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:55,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 15:11:55,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 15:11:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-13 15:11:56,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 15:11:56,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541193768] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:56,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 15:11:56,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 15:11:56,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187686626] [2024-10-13 15:11:56,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:56,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:56,019 INFO L87 Difference]: Start difference. First operand 58 states and 71 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 15:11:56,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:56,043 INFO L93 Difference]: Finished difference Result 94 states and 112 transitions. [2024-10-13 15:11:56,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:56,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2024-10-13 15:11:56,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:56,044 INFO L225 Difference]: With dead ends: 94 [2024-10-13 15:11:56,044 INFO L226 Difference]: Without dead ends: 58 [2024-10-13 15:11:56,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:56,047 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:56,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:56,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-13 15:11:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-13 15:11:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 40 states have internal predecessors, (44), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-13 15:11:56,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2024-10-13 15:11:56,058 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 47 [2024-10-13 15:11:56,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:56,061 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2024-10-13 15:11:56,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 15:11:56,061 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2024-10-13 15:11:56,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-13 15:11:56,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:56,062 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:56,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 15:11:56,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 15:11:56,265 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:56,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1448533612, now seen corresponding path program 1 times [2024-10-13 15:11:56,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:56,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909980703] [2024-10-13 15:11:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:56,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 15:11:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 15:11:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 15:11:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,341 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-13 15:11:56,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:56,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909980703] [2024-10-13 15:11:56,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909980703] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:56,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 15:11:56,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 15:11:56,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777379943] [2024-10-13 15:11:56,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:56,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:56,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:56,343 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-13 15:11:56,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:56,366 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2024-10-13 15:11:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2024-10-13 15:11:56,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:56,367 INFO L225 Difference]: With dead ends: 66 [2024-10-13 15:11:56,367 INFO L226 Difference]: Without dead ends: 64 [2024-10-13 15:11:56,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:56,368 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 2 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:56,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 182 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-13 15:11:56,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-10-13 15:11:56,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 44 states have internal predecessors, (49), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-13 15:11:56,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2024-10-13 15:11:56,373 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 54 [2024-10-13 15:11:56,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:56,375 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2024-10-13 15:11:56,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-13 15:11:56,375 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2024-10-13 15:11:56,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-13 15:11:56,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:56,376 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:56,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 15:11:56,377 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:56,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:56,377 INFO L85 PathProgramCache]: Analyzing trace with hash 219397931, now seen corresponding path program 1 times [2024-10-13 15:11:56,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:56,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397571885] [2024-10-13 15:11:56,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:56,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 15:11:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 15:11:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 15:11:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 15:11:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,472 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-13 15:11:56,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:56,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397571885] [2024-10-13 15:11:56,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397571885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:56,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 15:11:56,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 15:11:56,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736187607] [2024-10-13 15:11:56,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:56,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:56,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:56,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:56,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:56,474 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-13 15:11:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:56,491 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2024-10-13 15:11:56,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:56,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 60 [2024-10-13 15:11:56,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:56,494 INFO L225 Difference]: With dead ends: 84 [2024-10-13 15:11:56,494 INFO L226 Difference]: Without dead ends: 54 [2024-10-13 15:11:56,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:56,495 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:56,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:56,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-13 15:11:56,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-13 15:11:56,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 15:11:56,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2024-10-13 15:11:56,501 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 60 [2024-10-13 15:11:56,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:56,501 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2024-10-13 15:11:56,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-10-13 15:11:56,501 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2024-10-13 15:11:56,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-13 15:11:56,502 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:56,502 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:56,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 15:11:56,502 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:56,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:56,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1868968227, now seen corresponding path program 1 times [2024-10-13 15:11:56,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:56,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451647945] [2024-10-13 15:11:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:56,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 15:11:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 15:11:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 15:11:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-13 15:11:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-13 15:11:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,589 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-13 15:11:56,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451647945] [2024-10-13 15:11:56,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451647945] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 15:11:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588306971] [2024-10-13 15:11:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:56,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 15:11:56,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 15:11:56,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 15:11:56,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 15:11:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:56,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 15:11:56,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 15:11:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-13 15:11:56,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 15:11:56,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588306971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:56,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 15:11:56,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 15:11:56,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124319513] [2024-10-13 15:11:56,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:56,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:56,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:56,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:56,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:56,729 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-13 15:11:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:56,749 INFO L93 Difference]: Finished difference Result 67 states and 78 transitions. [2024-10-13 15:11:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:56,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2024-10-13 15:11:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:56,751 INFO L225 Difference]: With dead ends: 67 [2024-10-13 15:11:56,751 INFO L226 Difference]: Without dead ends: 54 [2024-10-13 15:11:56,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:56,752 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:56,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:56,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-13 15:11:56,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-13 15:11:56,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 37 states have internal predecessors, (39), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 15:11:56,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-10-13 15:11:56,759 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 65 [2024-10-13 15:11:56,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:56,760 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-10-13 15:11:56,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-13 15:11:56,760 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-10-13 15:11:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-13 15:11:56,761 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:56,761 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:56,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 15:11:56,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 15:11:56,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:56,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash 562358274, now seen corresponding path program 1 times [2024-10-13 15:11:56,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:56,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419538213] [2024-10-13 15:11:56,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:56,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 15:11:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 15:11:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 15:11:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 15:11:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 15:11:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 15:11:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-13 15:11:57,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:57,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419538213] [2024-10-13 15:11:57,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419538213] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:57,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 15:11:57,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 15:11:57,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69685271] [2024-10-13 15:11:57,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:57,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:57,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:57,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:57,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:57,043 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-13 15:11:57,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:57,070 INFO L93 Difference]: Finished difference Result 61 states and 70 transitions. [2024-10-13 15:11:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:57,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 71 [2024-10-13 15:11:57,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:57,071 INFO L225 Difference]: With dead ends: 61 [2024-10-13 15:11:57,071 INFO L226 Difference]: Without dead ends: 54 [2024-10-13 15:11:57,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 15:11:57,072 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 166 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 [2024-10-13 15:11:57,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 166 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-13 15:11:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-13 15:11:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 37 states have internal predecessors, (38), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 15:11:57,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2024-10-13 15:11:57,076 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 71 [2024-10-13 15:11:57,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:57,077 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2024-10-13 15:11:57,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-13 15:11:57,077 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2024-10-13 15:11:57,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-13 15:11:57,077 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 15:11:57,077 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:57,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 15:11:57,078 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-13 15:11:57,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 15:11:57,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1957601660, now seen corresponding path program 1 times [2024-10-13 15:11:57,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 15:11:57,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704971662] [2024-10-13 15:11:57,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:57,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 15:11:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 15:11:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 15:11:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 15:11:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 15:11:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 15:11:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 15:11:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 15:11:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-13 15:11:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 15:11:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-13 15:11:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 15:11:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-13 15:11:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-13 15:11:57,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 15:11:57,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704971662] [2024-10-13 15:11:57,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704971662] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 15:11:57,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239452278] [2024-10-13 15:11:57,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 15:11:57,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 15:11:57,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 15:11:57,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 15:11:57,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 15:11:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 15:11:57,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 15:11:57,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 15:11:57,257 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-13 15:11:57,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 15:11:57,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239452278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 15:11:57,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 15:11:57,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 15:11:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358576503] [2024-10-13 15:11:57,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 15:11:57,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 15:11:57,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 15:11:57,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 15:11:57,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:57,260 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-13 15:11:57,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 15:11:57,276 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2024-10-13 15:11:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 15:11:57,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 71 [2024-10-13 15:11:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 15:11:57,277 INFO L225 Difference]: With dead ends: 56 [2024-10-13 15:11:57,277 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 15:11:57,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 15:11:57,278 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 15:11:57,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 15:11:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 15:11:57,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 15:11:57,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 15:11:57,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 15:11:57,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2024-10-13 15:11:57,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 15:11:57,279 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 15:11:57,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-13 15:11:57,279 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 15:11:57,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 15:11:57,283 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-10-13 15:11:57,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-10-13 15:11:57,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-10-13 15:11:57,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-10-13 15:11:57,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-10-13 15:11:57,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-10-13 15:11:57,285 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-10-13 15:11:57,285 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-10-13 15:11:57,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 15:11:57,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 15:11:57,491 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 15:11:57,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 15:11:57,527 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 15:11:57,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 03:11:57 BoogieIcfgContainer [2024-10-13 15:11:57,547 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 15:11:57,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 15:11:57,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 15:11:57,548 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 15:11:57,548 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:11:54" (3/4) ... [2024-10-13 15:11:57,550 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 15:11:57,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-10-13 15:11:57,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsFalse [2024-10-13 15:11:57,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-10-13 15:11:57,553 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrue [2024-10-13 15:11:57,558 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-10-13 15:11:57,559 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-13 15:11:57,559 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 15:11:57,559 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 15:11:57,644 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 15:11:57,645 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 15:11:57,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 15:11:57,645 INFO L158 Benchmark]: Toolchain (without parser) took 4643.06ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 112.9MB in the beginning and 104.0MB in the end (delta: 8.9MB). Peak memory consumption was 45.3MB. Max. memory is 16.1GB. [2024-10-13 15:11:57,645 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 15:11:57,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.02ms. Allocated memory is still 159.4MB. Free memory was 112.9MB in the beginning and 47.1MB in the end (delta: 65.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-10-13 15:11:57,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.32ms. Allocated memory is still 159.4MB. Free memory was 47.1MB in the beginning and 43.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 15:11:57,646 INFO L158 Benchmark]: Boogie Preprocessor took 45.19ms. Allocated memory is still 159.4MB. Free memory was 43.7MB in the beginning and 41.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 15:11:57,646 INFO L158 Benchmark]: RCFGBuilder took 443.75ms. Allocated memory is still 159.4MB. Free memory was 41.6MB in the beginning and 109.5MB in the end (delta: -67.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 15:11:57,646 INFO L158 Benchmark]: TraceAbstraction took 3150.63ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 109.2MB in the beginning and 110.3MB in the end (delta: -1.1MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-10-13 15:11:57,647 INFO L158 Benchmark]: Witness Printer took 97.28ms. Allocated memory is still 197.1MB. Free memory was 110.3MB in the beginning and 104.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 15:11:57,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 100.7MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.02ms. Allocated memory is still 159.4MB. Free memory was 112.9MB in the beginning and 47.1MB in the end (delta: 65.8MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.32ms. Allocated memory is still 159.4MB. Free memory was 47.1MB in the beginning and 43.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.19ms. Allocated memory is still 159.4MB. Free memory was 43.7MB in the beginning and 41.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.75ms. Allocated memory is still 159.4MB. Free memory was 41.6MB in the beginning and 109.5MB in the end (delta: -67.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3150.63ms. Allocated memory was 159.4MB in the beginning and 197.1MB in the end (delta: 37.7MB). Free memory was 109.2MB in the beginning and 110.3MB in the end (delta: -1.1MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * Witness Printer took 97.28ms. Allocated memory is still 197.1MB. Free memory was 110.3MB in the beginning and 104.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 78 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 11, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 2004 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1260 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 744 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 421 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 736 NumberOfCodeBlocks, 736 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 721 ConstructedInterpolants, 0 QuantifiedInterpolants, 819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 725 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 355/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - ProcedureContractResult [Line: 1514]: Procedure Contract for globalReturnsFalse Derived contract for procedure globalReturnsFalse. Ensures: (\result == 0) - ProcedureContractResult [Line: 1510]: Procedure Contract for globalReturnsTrue Derived contract for procedure globalReturnsTrue. Ensures: (\result == 1) RESULT: Ultimate proved your program to be correct! [2024-10-13 15:11:57,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE