./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c --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/termination-crafted/NestedRecursion_1a-2.c -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 d925f1aaa578011e84cee59af464c9f4e53ab5dc54b7f9269f34505d8383253a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:57:53,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:57:53,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-13 12:57:53,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:57:53,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:57:53,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:57:53,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:57:53,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:57:53,489 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:57:53,490 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:57:53,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:57:53,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:57:53,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:57:53,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:57:53,491 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:57:53,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:57:53,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 12:57:53,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:57:53,493 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:57:53,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 12:57:53,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:57:53,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 12:57:53,497 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:57:53,497 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 12:57:53,497 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:57:53,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 12:57:53,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:57:53,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:57:53,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:57:53,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:57:53,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:57:53,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:57:53,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:57:53,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:57:53,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 12:57:53,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:57:53,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:57:53,501 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:57:53,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:57:53,501 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:57:53,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:57:53,502 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d925f1aaa578011e84cee59af464c9f4e53ab5dc54b7f9269f34505d8383253a [2024-10-13 12:57:53,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:57:53,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:57:53,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:57:53,768 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:57:53,769 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:57:53,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2024-10-13 12:57:55,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:57:55,278 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:57:55,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2024-10-13 12:57:55,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05f54d669/b784f067034e44b69100dd36ecd4e8eb/FLAG9d2cf0c7d [2024-10-13 12:57:55,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05f54d669/b784f067034e44b69100dd36ecd4e8eb [2024-10-13 12:57:55,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:57:55,699 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:57:55,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:57:55,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:57:55,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:57:55,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9cb6b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55, skipping insertion in model container [2024-10-13 12:57:55,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:57:55,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:57:55,854 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:57:55,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:57:55,877 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:57:55,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55 WrapperNode [2024-10-13 12:57:55,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:57:55,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:57:55,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:57:55,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:57:55,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,913 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2024-10-13 12:57:55,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:57:55,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:57:55,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:57:55,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:57:55,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,929 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,940 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-13 12:57:55,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:57:55,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:57:55,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:57:55,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:57:55,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (1/1) ... [2024-10-13 12:57:55,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:57:55,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:57:55,999 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 12:57:56,003 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 12:57:56,062 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2024-10-13 12:57:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2024-10-13 12:57:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2024-10-13 12:57:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2024-10-13 12:57:56,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:57:56,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:57:56,115 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:57:56,117 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:57:56,238 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-13 12:57:56,239 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:57:56,259 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:57:56,263 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:57:56,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:56 BoogieIcfgContainer [2024-10-13 12:57:56,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:57:56,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:57:56,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:57:56,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:57:56,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:57:55" (1/3) ... [2024-10-13 12:57:56,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414fec97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:57:56, skipping insertion in model container [2024-10-13 12:57:56,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:57:55" (2/3) ... [2024-10-13 12:57:56,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414fec97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:57:56, skipping insertion in model container [2024-10-13 12:57:56,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:56" (3/3) ... [2024-10-13 12:57:56,271 INFO L112 eAbstractionObserver]: Analyzing ICFG NestedRecursion_1a-2.c [2024-10-13 12:57:56,283 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:57:56,283 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-13 12:57:56,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:57:56,334 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;@3b864ac4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:57:56,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-13 12:57:56,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 25 states have (on average 1.52) internal successors, (38), 35 states have internal predecessors, (38), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 12:57:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-13 12:57:56,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:56,345 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-13 12:57:56,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:56,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:56,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1442097593, now seen corresponding path program 1 times [2024-10-13 12:57:56,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:56,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107596889] [2024-10-13 12:57:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:56,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:56,464 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 12:57:56,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:56,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107596889] [2024-10-13 12:57:56,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107596889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:56,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:56,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:57:56,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016050165] [2024-10-13 12:57:56,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:56,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:57:56,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:56,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:57:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:56,489 INFO L87 Difference]: Start difference. First operand has 44 states, 25 states have (on average 1.52) internal successors, (38), 35 states have internal predecessors, (38), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:56,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:56,525 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2024-10-13 12:57:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:57:56,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-13 12:57:56,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:56,532 INFO L225 Difference]: With dead ends: 46 [2024-10-13 12:57:56,532 INFO L226 Difference]: Without dead ends: 42 [2024-10-13 12:57:56,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:56,537 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 9 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:56,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 81 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:56,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-13 12:57:56,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2024-10-13 12:57:56,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 32 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-13 12:57:56,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2024-10-13 12:57:56,567 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 45 transitions. Word has length 6 [2024-10-13 12:57:56,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:56,567 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 45 transitions. [2024-10-13 12:57:56,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:56,567 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2024-10-13 12:57:56,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-13 12:57:56,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:56,568 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:56,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:57:56,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:56,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1755352361, now seen corresponding path program 1 times [2024-10-13 12:57:56,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:56,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952846870] [2024-10-13 12:57:56,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:56,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:56,618 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 12:57:56,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:56,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952846870] [2024-10-13 12:57:56,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952846870] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:56,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:56,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 12:57:56,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134246838] [2024-10-13 12:57:56,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:56,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:57:56,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:56,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:57:56,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:57:56,621 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:56,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:56,680 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2024-10-13 12:57:56,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:57:56,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-13 12:57:56,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:56,683 INFO L225 Difference]: With dead ends: 59 [2024-10-13 12:57:56,683 INFO L226 Difference]: Without dead ends: 54 [2024-10-13 12:57:56,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:57:56,684 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 27 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:56,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 152 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:56,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-13 12:57:56,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2024-10-13 12:57:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 39 states have internal predecessors, (43), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 12:57:56,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-10-13 12:57:56,700 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 7 [2024-10-13 12:57:56,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:56,700 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-10-13 12:57:56,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:56,701 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-10-13 12:57:56,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-13 12:57:56,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:56,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:56,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:57:56,704 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:56,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:56,705 INFO L85 PathProgramCache]: Analyzing trace with hash 576061948, now seen corresponding path program 1 times [2024-10-13 12:57:56,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:56,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877331548] [2024-10-13 12:57:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:56,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:56,733 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 12:57:56,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:56,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877331548] [2024-10-13 12:57:56,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877331548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:56,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:56,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:57:56,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522569714] [2024-10-13 12:57:56,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:56,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:57:56,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:56,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:57:56,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:56,735 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:56,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:56,757 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2024-10-13 12:57:56,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:57:56,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-13 12:57:56,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:56,758 INFO L225 Difference]: With dead ends: 52 [2024-10-13 12:57:56,758 INFO L226 Difference]: Without dead ends: 51 [2024-10-13 12:57:56,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:56,761 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 14 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:56,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 69 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-10-13 12:57:56,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2024-10-13 12:57:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 38 states have internal predecessors, (42), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 12:57:56,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 57 transitions. [2024-10-13 12:57:56,771 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 57 transitions. Word has length 11 [2024-10-13 12:57:56,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:56,771 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 57 transitions. [2024-10-13 12:57:56,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 57 transitions. [2024-10-13 12:57:56,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-13 12:57:56,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:56,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:56,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:57:56,772 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:56,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:56,773 INFO L85 PathProgramCache]: Analyzing trace with hash 678051242, now seen corresponding path program 1 times [2024-10-13 12:57:56,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:56,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379179789] [2024-10-13 12:57:56,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:56,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:56,919 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 12:57:56,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379179789] [2024-10-13 12:57:56,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379179789] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:56,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:56,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 12:57:56,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501967989] [2024-10-13 12:57:56,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:56,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 12:57:56,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:56,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 12:57:56,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 12:57:56,921 INFO L87 Difference]: Start difference. First operand 49 states and 57 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,029 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2024-10-13 12:57:57,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:57:57,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-13 12:57:57,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,031 INFO L225 Difference]: With dead ends: 76 [2024-10-13 12:57:57,031 INFO L226 Difference]: Without dead ends: 75 [2024-10-13 12:57:57,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 12:57:57,033 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 51 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 182 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:57:57,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-13 12:57:57,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2024-10-13 12:57:57,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 43 states have (on average 1.372093023255814) internal successors, (59), 50 states have internal predecessors, (59), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-13 12:57:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2024-10-13 12:57:57,042 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 12 [2024-10-13 12:57:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,042 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2024-10-13 12:57:57,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 12:57:57,043 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2024-10-13 12:57:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-13 12:57:57,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,043 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:57,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:57:57,044 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1701183343, now seen corresponding path program 1 times [2024-10-13 12:57:57,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379293298] [2024-10-13 12:57:57,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 12:57:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:57:57,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379293298] [2024-10-13 12:57:57,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379293298] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:57:57,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923451529] [2024-10-13 12:57:57,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:57:57,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:57:57,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:57:57,146 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,205 INFO L93 Difference]: Finished difference Result 128 states and 166 transitions. [2024-10-13 12:57:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 12:57:57,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-13 12:57:57,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,207 INFO L225 Difference]: With dead ends: 128 [2024-10-13 12:57:57,207 INFO L226 Difference]: Without dead ends: 71 [2024-10-13 12:57:57,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:57:57,208 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 98 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:57,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-10-13 12:57:57,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2024-10-13 12:57:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 52 states have internal predecessors, (60), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-13 12:57:57,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 82 transitions. [2024-10-13 12:57:57,227 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 82 transitions. Word has length 18 [2024-10-13 12:57:57,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,227 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 82 transitions. [2024-10-13 12:57:57,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,227 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 82 transitions. [2024-10-13 12:57:57,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-13 12:57:57,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,228 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:57,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:57:57,228 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,228 INFO L85 PathProgramCache]: Analyzing trace with hash -719559311, now seen corresponding path program 1 times [2024-10-13 12:57:57,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708437773] [2024-10-13 12:57:57,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 12:57:57,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708437773] [2024-10-13 12:57:57,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708437773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:57:57,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11366049] [2024-10-13 12:57:57,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:57:57,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:57:57,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:57:57,297 INFO L87 Difference]: Start difference. First operand 67 states and 82 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,336 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2024-10-13 12:57:57,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:57:57,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-10-13 12:57:57,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,339 INFO L225 Difference]: With dead ends: 90 [2024-10-13 12:57:57,339 INFO L226 Difference]: Without dead ends: 89 [2024-10-13 12:57:57,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 12:57:57,341 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 7 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 113 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 12:57:57,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 113 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:57,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-13 12:57:57,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 73. [2024-10-13 12:57:57,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 56 states have internal predecessors, (65), 11 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (16), 12 states have call predecessors, (16), 10 states have call successors, (16) [2024-10-13 12:57:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2024-10-13 12:57:57,352 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 19 [2024-10-13 12:57:57,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,352 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2024-10-13 12:57:57,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,352 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2024-10-13 12:57:57,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-13 12:57:57,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,353 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:57,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:57:57,353 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,354 INFO L85 PathProgramCache]: Analyzing trace with hash -831502117, now seen corresponding path program 1 times [2024-10-13 12:57:57,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116207709] [2024-10-13 12:57:57,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 12:57:57,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116207709] [2024-10-13 12:57:57,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116207709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:57:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614766381] [2024-10-13 12:57:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:57:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:57:57,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:57,403 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,420 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2024-10-13 12:57:57,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:57:57,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-10-13 12:57:57,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,421 INFO L225 Difference]: With dead ends: 73 [2024-10-13 12:57:57,421 INFO L226 Difference]: Without dead ends: 72 [2024-10-13 12:57:57,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:57:57,422 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 69 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:57,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-13 12:57:57,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-13 12:57:57,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 55 states have internal predecessors, (63), 11 states have call successors, (11), 4 states have call predecessors, (11), 5 states have return successors, (16), 12 states have call predecessors, (16), 10 states have call successors, (16) [2024-10-13 12:57:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 90 transitions. [2024-10-13 12:57:57,438 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 90 transitions. Word has length 20 [2024-10-13 12:57:57,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,438 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 90 transitions. [2024-10-13 12:57:57,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 90 transitions. [2024-10-13 12:57:57,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-13 12:57:57,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,440 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:57,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 12:57:57,440 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,442 INFO L85 PathProgramCache]: Analyzing trace with hash 252324898, now seen corresponding path program 1 times [2024-10-13 12:57:57,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178459039] [2024-10-13 12:57:57,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,508 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 12:57:57,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178459039] [2024-10-13 12:57:57,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178459039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:57:57,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286187496] [2024-10-13 12:57:57,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:57:57,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:57:57,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:57:57,510 INFO L87 Difference]: Start difference. First operand 72 states and 90 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,592 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2024-10-13 12:57:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:57:57,592 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-10-13 12:57:57,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,593 INFO L225 Difference]: With dead ends: 156 [2024-10-13 12:57:57,593 INFO L226 Difference]: Without dead ends: 92 [2024-10-13 12:57:57,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 12:57:57,595 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 179 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:57:57,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-10-13 12:57:57,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 80. [2024-10-13 12:57:57,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 54 states have (on average 1.2592592592592593) internal successors, (68), 62 states have internal predecessors, (68), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (18), 12 states have call predecessors, (18), 12 states have call successors, (18) [2024-10-13 12:57:57,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 99 transitions. [2024-10-13 12:57:57,602 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 99 transitions. Word has length 25 [2024-10-13 12:57:57,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,603 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 99 transitions. [2024-10-13 12:57:57,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 12:57:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 99 transitions. [2024-10-13 12:57:57,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-13 12:57:57,603 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,604 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] [2024-10-13 12:57:57,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 12:57:57,604 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1301845805, now seen corresponding path program 1 times [2024-10-13 12:57:57,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239242187] [2024-10-13 12:57:57,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 12:57:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 12:57:57,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239242187] [2024-10-13 12:57:57,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239242187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:57:57,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229928314] [2024-10-13 12:57:57,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:57:57,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:57:57,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:57:57,657 INFO L87 Difference]: Start difference. First operand 80 states and 99 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 12:57:57,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,702 INFO L93 Difference]: Finished difference Result 168 states and 221 transitions. [2024-10-13 12:57:57,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:57:57,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-10-13 12:57:57,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,705 INFO L225 Difference]: With dead ends: 168 [2024-10-13 12:57:57,705 INFO L226 Difference]: Without dead ends: 96 [2024-10-13 12:57:57,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 12:57:57,706 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 7 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 190 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:57,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-10-13 12:57:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2024-10-13 12:57:57,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.2372881355932204) internal successors, (73), 67 states have internal predecessors, (73), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-10-13 12:57:57,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 108 transitions. [2024-10-13 12:57:57,725 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 108 transitions. Word has length 31 [2024-10-13 12:57:57,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,725 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 108 transitions. [2024-10-13 12:57:57,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-13 12:57:57,725 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 108 transitions. [2024-10-13 12:57:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-13 12:57:57,726 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,726 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 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 12:57:57,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 12:57:57,726 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1238701033, now seen corresponding path program 1 times [2024-10-13 12:57:57,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856686098] [2024-10-13 12:57:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 12:57:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 12:57:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 12:57:57,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856686098] [2024-10-13 12:57:57,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856686098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:57:57,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721920474] [2024-10-13 12:57:57,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:57:57,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:57:57,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:57,753 INFO L87 Difference]: Start difference. First operand 88 states and 108 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 12:57:57,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,762 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2024-10-13 12:57:57,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:57:57,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2024-10-13 12:57:57,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,763 INFO L225 Difference]: With dead ends: 88 [2024-10-13 12:57:57,763 INFO L226 Difference]: Without dead ends: 87 [2024-10-13 12:57:57,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 12:57:57,764 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 75 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:57,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-10-13 12:57:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-10-13 12:57:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 66 states have internal predecessors, (71), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-10-13 12:57:57,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2024-10-13 12:57:57,771 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 33 [2024-10-13 12:57:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,771 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2024-10-13 12:57:57,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 12:57:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2024-10-13 12:57:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 12:57:57,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,772 INFO L215 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:57,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 12:57:57,772 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1008483268, now seen corresponding path program 1 times [2024-10-13 12:57:57,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815308632] [2024-10-13 12:57:57,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 12:57:57,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 12:57:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 12:57:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-13 12:57:57,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815308632] [2024-10-13 12:57:57,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815308632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:57:57,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728097117] [2024-10-13 12:57:57,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:57:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:57:57,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:57:57,808 INFO L87 Difference]: Start difference. First operand 87 states and 106 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 12:57:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,822 INFO L93 Difference]: Finished difference Result 94 states and 114 transitions. [2024-10-13 12:57:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:57:57,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-10-13 12:57:57,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,823 INFO L225 Difference]: With dead ends: 94 [2024-10-13 12:57:57,823 INFO L226 Difference]: Without dead ends: 93 [2024-10-13 12:57:57,823 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 12:57:57,823 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:57,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-10-13 12:57:57,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-10-13 12:57:57,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 70 states have internal predecessors, (77), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (20), 16 states have call predecessors, (20), 14 states have call successors, (20) [2024-10-13 12:57:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 112 transitions. [2024-10-13 12:57:57,829 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 112 transitions. Word has length 39 [2024-10-13 12:57:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,830 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 112 transitions. [2024-10-13 12:57:57,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-13 12:57:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2024-10-13 12:57:57,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-13 12:57:57,830 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,831 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:57,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 12:57:57,831 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,831 INFO L85 PathProgramCache]: Analyzing trace with hash 409606471, now seen corresponding path program 1 times [2024-10-13 12:57:57,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918362022] [2024-10-13 12:57:57,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:57:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-10-13 12:57:57,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:57,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918362022] [2024-10-13 12:57:57,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918362022] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:57,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:57,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:57:57,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587510037] [2024-10-13 12:57:57,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:57,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:57:57,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:57,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:57:57,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 12:57:57,930 INFO L87 Difference]: Start difference. First operand 93 states and 112 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 12:57:57,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:57,961 INFO L93 Difference]: Finished difference Result 103 states and 124 transitions. [2024-10-13 12:57:57,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 12:57:57,961 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2024-10-13 12:57:57,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:57,962 INFO L225 Difference]: With dead ends: 103 [2024-10-13 12:57:57,962 INFO L226 Difference]: Without dead ends: 102 [2024-10-13 12:57:57,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 12:57:57,963 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 6 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:57,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 165 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:57,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-13 12:57:57,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 92. [2024-10-13 12:57:57,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 65 states have (on average 1.1538461538461537) internal successors, (75), 69 states have internal predecessors, (75), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (20), 16 states have call predecessors, (20), 14 states have call successors, (20) [2024-10-13 12:57:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2024-10-13 12:57:57,969 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 43 [2024-10-13 12:57:57,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:57,969 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2024-10-13 12:57:57,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 12:57:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2024-10-13 12:57:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-13 12:57:57,970 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:57,970 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-10-13 12:57:57,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 12:57:57,971 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:57,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:57,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1420295783, now seen corresponding path program 1 times [2024-10-13 12:57:57,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:57,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099805025] [2024-10-13 12:57:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 12:57:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:57:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-13 12:57:58,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:58,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099805025] [2024-10-13 12:57:58,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099805025] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:57:58,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419907747] [2024-10-13 12:57:58,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:58,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:57:58,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:57:58,040 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 12:57:58,040 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 12:57:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:57:58,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:57:58,146 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-13 12:57:58,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:57:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-13 12:57:58,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419907747] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:57:58,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:57:58,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-10-13 12:57:58,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958950622] [2024-10-13 12:57:58,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:57:58,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 12:57:58,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:58,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 12:57:58,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-13 12:57:58,286 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-13 12:57:58,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:58,471 INFO L93 Difference]: Finished difference Result 194 states and 253 transitions. [2024-10-13 12:57:58,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 12:57:58,472 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 1 states have call successors, (6) Word has length 42 [2024-10-13 12:57:58,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:58,473 INFO L225 Difference]: With dead ends: 194 [2024-10-13 12:57:58,473 INFO L226 Difference]: Without dead ends: 192 [2024-10-13 12:57:58,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-10-13 12:57:58,475 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 103 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:58,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 389 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:57:58,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-10-13 12:57:58,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 117. [2024-10-13 12:57:58,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 82 states have (on average 1.1585365853658536) internal successors, (95), 87 states have internal predecessors, (95), 20 states have call successors, (20), 7 states have call predecessors, (20), 10 states have return successors, (34), 22 states have call predecessors, (34), 19 states have call successors, (34) [2024-10-13 12:57:58,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 149 transitions. [2024-10-13 12:57:58,488 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 149 transitions. Word has length 42 [2024-10-13 12:57:58,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:58,489 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 149 transitions. [2024-10-13 12:57:58,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 12 states have internal predecessors, (38), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-13 12:57:58,489 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 149 transitions. [2024-10-13 12:57:58,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-13 12:57:58,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:58,492 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:58,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 12:57:58,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-13 12:57:58,697 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:58,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:58,697 INFO L85 PathProgramCache]: Analyzing trace with hash 653818833, now seen corresponding path program 1 times [2024-10-13 12:57:58,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:58,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216092704] [2024-10-13 12:57:58,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:58,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 12:57:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:57:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-13 12:57:58,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:58,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216092704] [2024-10-13 12:57:58,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216092704] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:57:58,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113531679] [2024-10-13 12:57:58,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:58,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:57:58,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:57:58,766 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 12:57:58,767 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 12:57:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:58,799 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 12:57:58,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:57:58,859 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-10-13 12:57:58,859 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 12:57:58,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113531679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:58,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 12:57:58,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-13 12:57:58,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449590693] [2024-10-13 12:57:58,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:58,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 12:57:58,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 12:57:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-13 12:57:58,860 INFO L87 Difference]: Start difference. First operand 117 states and 149 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 12:57:58,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:58,958 INFO L93 Difference]: Finished difference Result 151 states and 192 transitions. [2024-10-13 12:57:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 12:57:58,959 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2024-10-13 12:57:58,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:58,963 INFO L225 Difference]: With dead ends: 151 [2024-10-13 12:57:58,963 INFO L226 Difference]: Without dead ends: 150 [2024-10-13 12:57:58,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-10-13 12:57:58,963 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 28 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:58,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 178 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:57:58,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-13 12:57:58,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2024-10-13 12:57:58,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 102 states have (on average 1.1470588235294117) internal successors, (117), 107 states have internal predecessors, (117), 25 states have call successors, (25), 8 states have call predecessors, (25), 12 states have return successors, (41), 28 states have call predecessors, (41), 24 states have call successors, (41) [2024-10-13 12:57:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 183 transitions. [2024-10-13 12:57:58,979 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 183 transitions. Word has length 54 [2024-10-13 12:57:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:58,980 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 183 transitions. [2024-10-13 12:57:58,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-13 12:57:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 183 transitions. [2024-10-13 12:57:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-13 12:57:58,981 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:58,981 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-10-13 12:57:58,994 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 12:57:59,182 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,SelfDestructingSolverStorable13 [2024-10-13 12:57:59,182 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:59,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash -895915619, now seen corresponding path program 1 times [2024-10-13 12:57:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:59,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197264118] [2024-10-13 12:57:59,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 12:57:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:59,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:57:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 12:57:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,244 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 12:57:59,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:59,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197264118] [2024-10-13 12:57:59,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197264118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:59,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:59,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 12:57:59,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747035869] [2024-10-13 12:57:59,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:59,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 12:57:59,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:59,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 12:57:59,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 12:57:59,249 INFO L87 Difference]: Start difference. First operand 144 states and 183 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-13 12:57:59,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:59,274 INFO L93 Difference]: Finished difference Result 158 states and 205 transitions. [2024-10-13 12:57:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 12:57:59,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 44 [2024-10-13 12:57:59,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:59,275 INFO L225 Difference]: With dead ends: 158 [2024-10-13 12:57:59,275 INFO L226 Difference]: Without dead ends: 157 [2024-10-13 12:57:59,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 12:57:59,276 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:59,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 106 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-13 12:57:59,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2024-10-13 12:57:59,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 110 states have (on average 1.1363636363636365) internal successors, (125), 114 states have internal predecessors, (125), 25 states have call successors, (25), 8 states have call predecessors, (25), 14 states have return successors, (47), 31 states have call predecessors, (47), 24 states have call successors, (47) [2024-10-13 12:57:59,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 197 transitions. [2024-10-13 12:57:59,295 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 197 transitions. Word has length 44 [2024-10-13 12:57:59,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:59,295 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 197 transitions. [2024-10-13 12:57:59,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-13 12:57:59,296 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 197 transitions. [2024-10-13 12:57:59,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-13 12:57:59,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:59,296 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 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] [2024-10-13 12:57:59,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 12:57:59,297 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:59,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:59,297 INFO L85 PathProgramCache]: Analyzing trace with hash -2003580343, now seen corresponding path program 1 times [2024-10-13 12:57:59,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:59,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939763755] [2024-10-13 12:57:59,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:59,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 12:57:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:57:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 12:57:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,340 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 12:57:59,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:59,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939763755] [2024-10-13 12:57:59,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939763755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:57:59,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:57:59,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:57:59,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857160252] [2024-10-13 12:57:59,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:57:59,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:57:59,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:57:59,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:57:59,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:59,342 INFO L87 Difference]: Start difference. First operand 154 states and 197 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-13 12:57:59,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:57:59,362 INFO L93 Difference]: Finished difference Result 154 states and 197 transitions. [2024-10-13 12:57:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:57:59,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 45 [2024-10-13 12:57:59,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:57:59,363 INFO L225 Difference]: With dead ends: 154 [2024-10-13 12:57:59,363 INFO L226 Difference]: Without dead ends: 150 [2024-10-13 12:57:59,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:57:59,364 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:57:59,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:57:59,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-13 12:57:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-10-13 12:57:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 111 states have internal predecessors, (119), 25 states have call successors, (25), 8 states have call predecessors, (25), 14 states have return successors, (45), 30 states have call predecessors, (45), 24 states have call successors, (45) [2024-10-13 12:57:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 189 transitions. [2024-10-13 12:57:59,380 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 189 transitions. Word has length 45 [2024-10-13 12:57:59,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:57:59,380 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 189 transitions. [2024-10-13 12:57:59,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-13 12:57:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 189 transitions. [2024-10-13 12:57:59,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-13 12:57:59,385 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:57:59,385 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:57:59,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 12:57:59,385 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:57:59,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:57:59,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1656852952, now seen corresponding path program 1 times [2024-10-13 12:57:59,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:57:59,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457110853] [2024-10-13 12:57:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:59,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:57:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 12:57:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:57:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 12:57:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:57:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:57:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:57:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 12:57:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-13 12:57:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 12:57:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 80 proven. 53 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-10-13 12:57:59,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:57:59,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457110853] [2024-10-13 12:57:59,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457110853] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:57:59,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238987478] [2024-10-13 12:57:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:57:59,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:57:59,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:57:59,661 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 12:57:59,662 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 12:57:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:57:59,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 12:57:59,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:57:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 77 proven. 56 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-10-13 12:57:59,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:58:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 77 proven. 57 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2024-10-13 12:58:00,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238987478] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:58:00,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:58:00,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 17 [2024-10-13 12:58:00,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743640308] [2024-10-13 12:58:00,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:58:00,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 12:58:00,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:58:00,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 12:58:00,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-10-13 12:58:00,167 INFO L87 Difference]: Start difference. First operand 150 states and 189 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 12 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (18), 7 states have call predecessors, (18), 12 states have call successors, (18) [2024-10-13 12:58:00,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:58:00,381 INFO L93 Difference]: Finished difference Result 236 states and 326 transitions. [2024-10-13 12:58:00,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 12:58:00,381 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 12 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (18), 7 states have call predecessors, (18), 12 states have call successors, (18) Word has length 108 [2024-10-13 12:58:00,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:58:00,383 INFO L225 Difference]: With dead ends: 236 [2024-10-13 12:58:00,383 INFO L226 Difference]: Without dead ends: 223 [2024-10-13 12:58:00,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 232 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2024-10-13 12:58:00,384 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 57 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:58:00,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 237 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:58:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-13 12:58:00,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 177. [2024-10-13 12:58:00,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 126 states have (on average 1.1031746031746033) internal successors, (139), 129 states have internal predecessors, (139), 30 states have call successors, (30), 8 states have call predecessors, (30), 17 states have return successors, (64), 39 states have call predecessors, (64), 29 states have call successors, (64) [2024-10-13 12:58:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 233 transitions. [2024-10-13 12:58:00,395 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 233 transitions. Word has length 108 [2024-10-13 12:58:00,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:58:00,395 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 233 transitions. [2024-10-13 12:58:00,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 12 states have call successors, (19), 1 states have call predecessors, (19), 6 states have return successors, (18), 7 states have call predecessors, (18), 12 states have call successors, (18) [2024-10-13 12:58:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 233 transitions. [2024-10-13 12:58:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-13 12:58:00,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:58:00,396 INFO L215 NwaCegarLoop]: trace histogram [11, 8, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:58:00,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 12:58:00,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:58:00,601 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:58:00,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:58:00,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2078772712, now seen corresponding path program 2 times [2024-10-13 12:58:00,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:58:00,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208687875] [2024-10-13 12:58:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:58:00,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:58:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 12:58:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:58:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:58:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:58:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-13 12:58:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:58:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:58:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:58:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:00,721 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-10-13 12:58:00,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:58:00,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208687875] [2024-10-13 12:58:00,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208687875] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 12:58:00,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83171164] [2024-10-13 12:58:00,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 12:58:00,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 12:58:00,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:58:00,739 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 12:58:00,740 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 12:58:00,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 12:58:00,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 12:58:00,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-13 12:58:00,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 12:58:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-10-13 12:58:00,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 12:58:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-10-13 12:58:00,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83171164] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 12:58:00,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 12:58:00,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 11 [2024-10-13 12:58:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096396801] [2024-10-13 12:58:00,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 12:58:00,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 12:58:00,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:58:00,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 12:58:00,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-13 12:58:00,937 INFO L87 Difference]: Start difference. First operand 177 states and 233 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-13 12:58:01,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:58:01,008 INFO L93 Difference]: Finished difference Result 266 states and 347 transitions. [2024-10-13 12:58:01,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:58:01,008 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 84 [2024-10-13 12:58:01,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:58:01,009 INFO L225 Difference]: With dead ends: 266 [2024-10-13 12:58:01,009 INFO L226 Difference]: Without dead ends: 74 [2024-10-13 12:58:01,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 177 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-10-13 12:58:01,010 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 27 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:58:01,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 158 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:58:01,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-13 12:58:01,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2024-10-13 12:58:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 52 states have internal predecessors, (54), 10 states have call successors, (10), 6 states have call predecessors, (10), 8 states have return successors, (14), 11 states have call predecessors, (14), 9 states have call successors, (14) [2024-10-13 12:58:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2024-10-13 12:58:01,015 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 84 [2024-10-13 12:58:01,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:58:01,015 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2024-10-13 12:58:01,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 11 states have internal predecessors, (48), 5 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2024-10-13 12:58:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2024-10-13 12:58:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-13 12:58:01,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:58:01,016 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:58:01,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 12:58:01,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-13 12:58:01,217 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-13 12:58:01,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:58:01,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1224623314, now seen corresponding path program 2 times [2024-10-13 12:58:01,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:58:01,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261828049] [2024-10-13 12:58:01,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:58:01,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:58:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-13 12:58:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:58:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:58:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:58:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-13 12:58:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:58:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-13 12:58:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 12:58:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 12:58:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-13 12:58:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:58:01,318 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-13 12:58:01,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:58:01,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261828049] [2024-10-13 12:58:01,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261828049] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:58:01,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:58:01,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 12:58:01,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050412112] [2024-10-13 12:58:01,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:58:01,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 12:58:01,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:58:01,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 12:58:01,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 12:58:01,321 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 12:58:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:58:01,355 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2024-10-13 12:58:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 12:58:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-10-13 12:58:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:58:01,355 INFO L225 Difference]: With dead ends: 70 [2024-10-13 12:58:01,356 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 12:58:01,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 12:58:01,356 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:58:01,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 155 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:58:01,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 12:58:01,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 12:58:01,357 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 12:58:01,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 12:58:01,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2024-10-13 12:58:01,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:58:01,358 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 12:58:01,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-13 12:58:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 12:58:01,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 12:58:01,360 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-10-13 12:58:01,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-13 12:58:01,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-13 12:58:01,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-13 12:58:01,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-10-13 12:58:01,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-10-13 12:58:01,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-13 12:58:01,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-13 12:58:01,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-13 12:58:01,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location rec2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-10-13 12:58:01,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 12:58:01,364 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:58:01,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 12:58:01,783 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:58:01,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:58:01 BoogieIcfgContainer [2024-10-13 12:58:01,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:58:01,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:58:01,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:58:01,797 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:58:01,797 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:57:56" (3/4) ... [2024-10-13 12:58:01,798 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:58:01,801 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2024-10-13 12:58:01,801 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2024-10-13 12:58:01,804 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-10-13 12:58:01,804 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 12:58:01,804 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 12:58:01,902 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:58:01,904 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:58:01,904 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:58:01,905 INFO L158 Benchmark]: Toolchain (without parser) took 6205.74ms. Allocated memory was 165.7MB in the beginning and 216.0MB in the end (delta: 50.3MB). Free memory was 95.0MB in the beginning and 125.2MB in the end (delta: -30.2MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2024-10-13 12:58:01,905 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:58:01,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.37ms. Allocated memory is still 165.7MB. Free memory was 94.7MB in the beginning and 83.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 12:58:01,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.80ms. Allocated memory is still 165.7MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:58:01,905 INFO L158 Benchmark]: Boogie Preprocessor took 39.91ms. Allocated memory is still 165.7MB. Free memory was 82.3MB in the beginning and 81.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:58:01,906 INFO L158 Benchmark]: RCFGBuilder took 309.06ms. Allocated memory is still 165.7MB. Free memory was 80.8MB in the beginning and 130.2MB in the end (delta: -49.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-10-13 12:58:01,906 INFO L158 Benchmark]: TraceAbstraction took 5531.43ms. Allocated memory was 165.7MB in the beginning and 216.0MB in the end (delta: 50.3MB). Free memory was 130.2MB in the beginning and 129.4MB in the end (delta: 773.2kB). Peak memory consumption was 119.6MB. Max. memory is 16.1GB. [2024-10-13 12:58:01,906 INFO L158 Benchmark]: Witness Printer took 107.61ms. Allocated memory is still 216.0MB. Free memory was 129.4MB in the beginning and 125.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 12:58:01,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 165.7MB. Free memory is still 119.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.37ms. Allocated memory is still 165.7MB. Free memory was 94.7MB in the beginning and 83.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.80ms. Allocated memory is still 165.7MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.91ms. Allocated memory is still 165.7MB. Free memory was 82.3MB in the beginning and 81.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 309.06ms. Allocated memory is still 165.7MB. Free memory was 80.8MB in the beginning and 130.2MB in the end (delta: -49.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5531.43ms. Allocated memory was 165.7MB in the beginning and 216.0MB in the end (delta: 50.3MB). Free memory was 130.2MB in the beginning and 129.4MB in the end (delta: 773.2kB). Peak memory consumption was 119.6MB. Max. memory is 16.1GB. * Witness Printer took 107.61ms. Allocated memory is still 216.0MB. Free memory was 129.4MB in the beginning and 125.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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 3 procedures, 44 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 19, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 423 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 378 mSDsluCounter, 2779 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2049 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1088 IncrementalHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 730 mSDtfsCounter, 1088 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 774 GetRequests, 644 SyntacticMatches, 12 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177occurred in iteration=17, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 202 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1013 NumberOfCodeBlocks, 1013 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1221 ConstructedInterpolants, 0 QuantifiedInterpolants, 2039 SizeOfPredicates, 6 NumberOfNonLiveVariables, 576 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 26 InterpolantComputations, 16 PerfectInterpolantSequences, 1731/1989 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 10 specifications checked. All of them hold - ProcedureContractResult [Line: 11]: Procedure Contract for rec1 Derived contract for procedure rec1. Requires: (i <= 2147483647) Ensures: ((i <= 2147483647) && (((\result == 0) && (i <= 0)) || ((\result == 1) && (1 <= i)))) - ProcedureContractResult [Line: 17]: Procedure Contract for rec2 Derived contract for procedure rec2. Requires: (j < 2147483647) Ensures: ((((j <= 0) && (0 <= \result)) || (1 < j)) && (j <= 2147483646)) RESULT: Ultimate proved your program to be correct! [2024-10-13 12:58:01,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE