./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2409cd2f018515417b0b6bf5d396e4bc80c02540769112137ebf388167bdf776 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 11:09:55,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 11:09:55,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 11:09:55,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 11:09:55,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 11:09:55,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 11:09:55,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 11:09:55,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 11:09:55,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 11:09:55,847 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 11:09:55,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 11:09:55,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 11:09:55,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 11:09:55,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 11:09:55,850 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 11:09:55,852 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 11:09:55,852 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 11:09:55,852 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 11:09:55,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 11:09:55,853 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 11:09:55,853 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 11:09:55,854 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 11:09:55,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 11:09:55,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 11:09:55,855 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 11:09:55,855 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 11:09:55,855 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 11:09:55,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 11:09:55,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 11:09:55,856 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 11:09:55,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 11:09:55,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 11:09:55,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 11:09:55,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 11:09:55,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:09:55,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 11:09:55,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 11:09:55,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 11:09:55,859 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 11:09:55,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 11:09:55,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 11:09:55,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 11:09:55,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 11:09:55,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 11:09:55,860 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2409cd2f018515417b0b6bf5d396e4bc80c02540769112137ebf388167bdf776 [2024-11-19 11:09:56,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 11:09:56,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 11:09:56,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 11:09:56,122 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 11:09:56,123 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 11:09:56,124 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2024-11-19 11:09:57,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 11:09:57,707 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 11:09:57,708 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i25_o25-1.c [2024-11-19 11:09:57,716 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfc90d6f/ac57300aa3d34dfab07f83bc94e6c5c4/FLAG4e22e8d43 [2024-11-19 11:09:58,110 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfc90d6f/ac57300aa3d34dfab07f83bc94e6c5c4 [2024-11-19 11:09:58,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 11:09:58,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 11:09:58,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 11:09:58,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 11:09:58,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 11:09:58,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,127 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b50559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58, skipping insertion in model container [2024-11-19 11:09:58,127 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,143 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 11:09:58,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:09:58,331 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 11:09:58,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:09:58,378 INFO L204 MainTranslator]: Completed translation [2024-11-19 11:09:58,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58 WrapperNode [2024-11-19 11:09:58,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 11:09:58,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 11:09:58,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 11:09:58,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 11:09:58,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,401 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19 [2024-11-19 11:09:58,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 11:09:58,401 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 11:09:58,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 11:09:58,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 11:09:58,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,413 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,421 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 11:09:58,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,427 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 11:09:58,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 11:09:58,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 11:09:58,428 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 11:09:58,429 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (1/1) ... [2024-11-19 11:09:58,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:09:58,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:58,459 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) [2024-11-19 11:09:58,466 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 [2024-11-19 11:09:58,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 11:09:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 11:09:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 11:09:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 11:09:58,512 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-19 11:09:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-19 11:09:58,577 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 11:09:58,579 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 11:09:58,698 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-19 11:09:58,700 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 11:09:58,717 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 11:09:58,718 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 11:09:58,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:09:58 BoogieIcfgContainer [2024-11-19 11:09:58,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 11:09:58,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 11:09:58,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 11:09:58,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 11:09:58,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:09:58" (1/3) ... [2024-11-19 11:09:58,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d94c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:09:58, skipping insertion in model container [2024-11-19 11:09:58,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:09:58" (2/3) ... [2024-11-19 11:09:58,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d94c4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:09:58, skipping insertion in model container [2024-11-19 11:09:58,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:09:58" (3/3) ... [2024-11-19 11:09:58,729 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i25_o25-1.c [2024-11-19 11:09:58,751 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 11:09:58,752 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-19 11:09:58,815 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 11:09:58,823 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;@5d897abd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 11:09:58,823 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-19 11:09:58,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:09:58,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 11:09:58,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:58,834 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 11:09:58,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:09:58,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:58,838 INFO L85 PathProgramCache]: Analyzing trace with hash 890350836, now seen corresponding path program 1 times [2024-11-19 11:09:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:58,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048390787] [2024-11-19 11:09:58,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:58,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:59,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:09:59,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:59,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048390787] [2024-11-19 11:09:59,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048390787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:59,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:59,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:59,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275444210] [2024-11-19 11:09:59,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:59,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:59,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:59,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:59,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:59,083 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.375) internal successors, (22), 20 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-19 11:09:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:59,167 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2024-11-19 11:09:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:59,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 [2024-11-19 11:09:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:59,178 INFO L225 Difference]: With dead ends: 46 [2024-11-19 11:09:59,178 INFO L226 Difference]: Without dead ends: 28 [2024-11-19 11:09:59,181 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 [2024-11-19 11:09:59,184 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 22 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:59,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:59,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-19 11:09:59,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2024-11-19 11:09:59,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:09:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-19 11:09:59,226 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 6 [2024-11-19 11:09:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:59,226 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-19 11:09:59,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2024-11-19 11:09:59,226 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-19 11:09:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 11:09:59,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:59,227 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:59,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 11:09:59,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:09:59,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:59,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1831072195, now seen corresponding path program 1 times [2024-11-19 11:09:59,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:59,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503807143] [2024-11-19 11:09:59,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:59,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:09:59,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:59,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503807143] [2024-11-19 11:09:59,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503807143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:09:59,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:09:59,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:09:59,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975373020] [2024-11-19 11:09:59,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:09:59,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:09:59,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:59,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:09:59,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:09:59,352 INFO L87 Difference]: Start difference. First operand 25 states and 29 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) [2024-11-19 11:09:59,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:59,404 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-19 11:09:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:09:59,405 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 [2024-11-19 11:09:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:59,407 INFO L225 Difference]: With dead ends: 27 [2024-11-19 11:09:59,407 INFO L226 Difference]: Without dead ends: 26 [2024-11-19 11:09:59,408 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 [2024-11-19 11:09:59,410 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:59,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:09:59,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-19 11:09:59,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2024-11-19 11:09:59,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:09:59,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-19 11:09:59,423 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 7 [2024-11-19 11:09:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:59,424 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-19 11:09:59,424 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) [2024-11-19 11:09:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-19 11:09:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 11:09:59,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:59,425 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:09:59,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 11:09:59,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:09:59,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:09:59,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1922931507, now seen corresponding path program 1 times [2024-11-19 11:09:59,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:09:59,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345325262] [2024-11-19 11:09:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:59,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:09:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:09:59,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:09:59,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345325262] [2024-11-19 11:09:59,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345325262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:09:59,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176693520] [2024-11-19 11:09:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:09:59,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:09:59,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:09:59,573 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) [2024-11-19 11:09:59,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 11:09:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:09:59,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 11:09:59,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:09:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:09:59,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:09:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:09:59,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176693520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:09:59,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:09:59,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-19 11:09:59,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985191555] [2024-11-19 11:09:59,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:09:59,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 11:09:59,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:09:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 11:09:59,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 11:09:59,812 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:09:59,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:09:59,965 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2024-11-19 11:09:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 11:09:59,966 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-19 11:09:59,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:09:59,967 INFO L225 Difference]: With dead ends: 76 [2024-11-19 11:09:59,967 INFO L226 Difference]: Without dead ends: 68 [2024-11-19 11:09:59,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-19 11:09:59,971 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:09:59,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 95 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:09:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-19 11:09:59,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2024-11-19 11:09:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 11:09:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2024-11-19 11:09:59,986 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 11 [2024-11-19 11:09:59,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:09:59,986 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2024-11-19 11:09:59,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:09:59,986 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2024-11-19 11:09:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 11:09:59,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:09:59,989 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:10:00,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 11:10:00,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:00,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:00,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:00,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1856245274, now seen corresponding path program 1 times [2024-11-19 11:10:00,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:00,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153823191] [2024-11-19 11:10:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:10:00,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:10:00,305 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 11:10:00,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:00,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153823191] [2024-11-19 11:10:00,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153823191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:10:00,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:10:00,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 11:10:00,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697787597] [2024-11-19 11:10:00,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:10:00,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 11:10:00,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:00,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 11:10:00,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 11:10:00,309 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:10:00,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:00,338 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2024-11-19 11:10:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 11:10:00,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-19 11:10:00,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:00,342 INFO L225 Difference]: With dead ends: 74 [2024-11-19 11:10:00,343 INFO L226 Difference]: Without dead ends: 72 [2024-11-19 11:10:00,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 11:10:00,345 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:00,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:10:00,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-19 11:10:00,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-19 11:10:00,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:10:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2024-11-19 11:10:00,369 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2024-11-19 11:10:00,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:00,370 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2024-11-19 11:10:00,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:10:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2024-11-19 11:10:00,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 11:10:00,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:00,371 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:10:00,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 11:10:00,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:00,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:00,373 INFO L85 PathProgramCache]: Analyzing trace with hash -614066819, now seen corresponding path program 1 times [2024-11-19 11:10:00,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:00,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342245092] [2024-11-19 11:10:00,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:10:00,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:10:00,428 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 11:10:00,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342245092] [2024-11-19 11:10:00,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342245092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:10:00,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:10:00,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:10:00,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620847310] [2024-11-19 11:10:00,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:10:00,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 11:10:00,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:00,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 11:10:00,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 11:10:00,431 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:10:00,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:00,447 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2024-11-19 11:10:00,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 11:10:00,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-19 11:10:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:00,449 INFO L225 Difference]: With dead ends: 72 [2024-11-19 11:10:00,449 INFO L226 Difference]: Without dead ends: 71 [2024-11-19 11:10:00,449 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 [2024-11-19 11:10:00,450 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:00,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:10:00,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-19 11:10:00,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-19 11:10:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-19 11:10:00,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2024-11-19 11:10:00,468 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 24 [2024-11-19 11:10:00,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:00,468 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2024-11-19 11:10:00,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:10:00,469 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2024-11-19 11:10:00,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 11:10:00,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:00,469 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2024-11-19 11:10:00,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 11:10:00,470 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:00,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:00,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1990585420, now seen corresponding path program 2 times [2024-11-19 11:10:00,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:00,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511467264] [2024-11-19 11:10:00,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:10:00,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:00,486 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:10:00,486 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511467264] [2024-11-19 11:10:00,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511467264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:00,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80696549] [2024-11-19 11:10:00,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:10:00,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:00,704 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) [2024-11-19 11:10:00,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 11:10:00,744 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:10:00,744 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:00,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 11:10:00,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:00,812 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:00,813 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:01,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80696549] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:01,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:01,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2024-11-19 11:10:01,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134520372] [2024-11-19 11:10:01,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:01,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 11:10:01,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:01,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 11:10:01,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2024-11-19 11:10:01,026 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:01,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:01,377 INFO L93 Difference]: Finished difference Result 188 states and 204 transitions. [2024-11-19 11:10:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-19 11:10:01,377 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-19 11:10:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:01,379 INFO L225 Difference]: With dead ends: 188 [2024-11-19 11:10:01,379 INFO L226 Difference]: Without dead ends: 156 [2024-11-19 11:10:01,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:10:01,380 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 247 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:01,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 223 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:10:01,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-19 11:10:01,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-19 11:10:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.146551724137931) internal successors, (133), 116 states have internal predecessors, (133), 12 states have call successors, (12), 11 states have call predecessors, (12), 16 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-19 11:10:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2024-11-19 11:10:01,405 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 26 [2024-11-19 11:10:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:01,407 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2024-11-19 11:10:01,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 14 states have internal predecessors, (41), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:01,407 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2024-11-19 11:10:01,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 11:10:01,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:01,408 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-19 11:10:01,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 11:10:01,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 11:10:01,609 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:01,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1350016289, now seen corresponding path program 1 times [2024-11-19 11:10:01,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:01,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863184048] [2024-11-19 11:10:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:10:01,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:10:01,685 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-19 11:10:01,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:01,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863184048] [2024-11-19 11:10:01,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863184048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:01,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869442716] [2024-11-19 11:10:01,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:10:01,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:01,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:01,688 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) [2024-11-19 11:10:01,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 11:10:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:10:01,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:10:01,731 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 60 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 11:10:01,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 61 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 11:10:02,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869442716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:02,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:02,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 14, 15] total 29 [2024-11-19 11:10:02,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421352827] [2024-11-19 11:10:02,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:02,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-19 11:10:02,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:02,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-19 11:10:02,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2024-11-19 11:10:02,282 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:10:02,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:02,727 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2024-11-19 11:10:02,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 11:10:02,729 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 40 [2024-11-19 11:10:02,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:02,730 INFO L225 Difference]: With dead ends: 208 [2024-11-19 11:10:02,730 INFO L226 Difference]: Without dead ends: 142 [2024-11-19 11:10:02,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=306, Invalid=1334, Unknown=0, NotChecked=0, Total=1640 [2024-11-19 11:10:02,731 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 164 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:02,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 462 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:10:02,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-19 11:10:02,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 134. [2024-11-19 11:10:02,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 106 states have internal predecessors, (119), 12 states have call successors, (12), 11 states have call predecessors, (12), 13 states have return successors, (16), 16 states have call predecessors, (16), 11 states have call successors, (16) [2024-11-19 11:10:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2024-11-19 11:10:02,757 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 40 [2024-11-19 11:10:02,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:02,757 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2024-11-19 11:10:02,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 21 states have internal predecessors, (68), 13 states have call successors, (14), 9 states have call predecessors, (14), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:10:02,757 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2024-11-19 11:10:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-19 11:10:02,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:02,759 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2024-11-19 11:10:02,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 11:10:02,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:02,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:02,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:02,961 INFO L85 PathProgramCache]: Analyzing trace with hash -91829804, now seen corresponding path program 3 times [2024-11-19 11:10:02,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:02,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518811554] [2024-11-19 11:10:02,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:10:02,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:02,988 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 11:10:02,988 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:03,392 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:03,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:03,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518811554] [2024-11-19 11:10:03,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518811554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:03,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116424593] [2024-11-19 11:10:03,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:10:03,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:03,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:03,394 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) [2024-11-19 11:10:03,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 11:10:03,449 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-19 11:10:03,449 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:03,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 11:10:03,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:03,536 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:03,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:04,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116424593] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:04,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:04,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2024-11-19 11:10:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833381840] [2024-11-19 11:10:04,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:04,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-19 11:10:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:04,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-19 11:10:04,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 11:10:04,169 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:04,990 INFO L93 Difference]: Finished difference Result 438 states and 470 transitions. [2024-11-19 11:10:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-19 11:10:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-19 11:10:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:04,994 INFO L225 Difference]: With dead ends: 438 [2024-11-19 11:10:04,994 INFO L226 Difference]: Without dead ends: 386 [2024-11-19 11:10:04,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2024-11-19 11:10:04,999 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 789 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:04,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 471 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:10:05,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-19 11:10:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 364. [2024-11-19 11:10:05,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 291 states have (on average 1.120274914089347) internal successors, (326), 290 states have internal predecessors, (326), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2024-11-19 11:10:05,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 400 transitions. [2024-11-19 11:10:05,037 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 400 transitions. Word has length 56 [2024-11-19 11:10:05,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:05,038 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 400 transitions. [2024-11-19 11:10:05,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 1.9777777777777779) internal successors, (89), 26 states have internal predecessors, (89), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:05,038 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 400 transitions. [2024-11-19 11:10:05,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 11:10:05,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:05,042 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-19 11:10:05,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 11:10:05,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:05,247 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:05,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:05,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1351701622, now seen corresponding path program 2 times [2024-11-19 11:10:05,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:05,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921000640] [2024-11-19 11:10:05,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:10:05,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:05,275 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:10:05,275 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:05,776 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 11:10:05,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:05,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921000640] [2024-11-19 11:10:05,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921000640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:05,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617926426] [2024-11-19 11:10:05,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 11:10:05,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:05,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:05,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:05,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 11:10:05,826 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 11:10:05,826 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:05,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 11:10:05,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 297 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 11:10:05,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 303 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 11:10:06,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617926426] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:06,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:06,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 27] total 49 [2024-11-19 11:10:06,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123311582] [2024-11-19 11:10:06,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:06,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-19 11:10:06,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:06,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-19 11:10:06,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=478, Invalid=1874, Unknown=0, NotChecked=0, Total=2352 [2024-11-19 11:10:06,735 INFO L87 Difference]: Start difference. First operand 364 states and 400 transitions. Second operand has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-19 11:10:07,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:07,511 INFO L93 Difference]: Finished difference Result 481 states and 516 transitions. [2024-11-19 11:10:07,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-19 11:10:07,512 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 75 [2024-11-19 11:10:07,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:07,515 INFO L225 Difference]: With dead ends: 481 [2024-11-19 11:10:07,515 INFO L226 Difference]: Without dead ends: 290 [2024-11-19 11:10:07,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1144, Invalid=3686, Unknown=0, NotChecked=0, Total=4830 [2024-11-19 11:10:07,521 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 492 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:07,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 739 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:10:07,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-19 11:10:07,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 264. [2024-11-19 11:10:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 211 states have (on average 1.1184834123222749) internal successors, (236), 210 states have internal predecessors, (236), 24 states have call successors, (24), 23 states have call predecessors, (24), 27 states have return successors, (30), 30 states have call predecessors, (30), 23 states have call successors, (30) [2024-11-19 11:10:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 290 transitions. [2024-11-19 11:10:07,543 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 290 transitions. Word has length 75 [2024-11-19 11:10:07,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:07,545 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 290 transitions. [2024-11-19 11:10:07,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 47 states have (on average 2.234042553191489) internal successors, (105), 31 states have internal predecessors, (105), 23 states have call successors, (23), 19 states have call predecessors, (23), 4 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-19 11:10:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 290 transitions. [2024-11-19 11:10:07,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 11:10:07,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:07,546 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2024-11-19 11:10:07,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 11:10:07,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:07,753 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:07,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1473917420, now seen corresponding path program 4 times [2024-11-19 11:10:07,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:07,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433185330] [2024-11-19 11:10:07,753 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:10:07,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:07,787 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:10:07,787 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:09,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:09,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:09,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433185330] [2024-11-19 11:10:09,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433185330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:09,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681462432] [2024-11-19 11:10:09,108 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:10:09,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:09,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:09,110 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:09,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 11:10:09,171 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:10:09,171 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:09,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-19 11:10:09,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:09,400 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:11,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:11,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681462432] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:11,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:11,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2024-11-19 11:10:11,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239100606] [2024-11-19 11:10:11,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:11,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2024-11-19 11:10:11,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:11,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2024-11-19 11:10:11,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2024-11-19 11:10:11,390 INFO L87 Difference]: Start difference. First operand 264 states and 290 transitions. Second operand has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:13,549 INFO L93 Difference]: Finished difference Result 892 states and 961 transitions. [2024-11-19 11:10:13,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-19 11:10:13,550 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-19 11:10:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:13,554 INFO L225 Difference]: With dead ends: 892 [2024-11-19 11:10:13,554 INFO L226 Difference]: Without dead ends: 770 [2024-11-19 11:10:13,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4638 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=5651, Invalid=15229, Unknown=0, NotChecked=0, Total=20880 [2024-11-19 11:10:13,559 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1937 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1938 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:13,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1938 Valid, 1308 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:10:13,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-19 11:10:13,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 724. [2024-11-19 11:10:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 579 states have (on average 1.1226252158894645) internal successors, (650), 578 states have internal predecessors, (650), 48 states have call successors, (48), 47 states have call predecessors, (48), 95 states have return successors, (98), 98 states have call predecessors, (98), 47 states have call successors, (98) [2024-11-19 11:10:13,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 796 transitions. [2024-11-19 11:10:13,606 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 796 transitions. Word has length 116 [2024-11-19 11:10:13,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:13,607 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 796 transitions. [2024-11-19 11:10:13,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 95 states have (on average 2.0) internal successors, (190), 52 states have internal predecessors, (190), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:13,607 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 796 transitions. [2024-11-19 11:10:13,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-19 11:10:13,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:13,613 INFO L215 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-19 11:10:13,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 11:10:13,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:13,814 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:13,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:13,815 INFO L85 PathProgramCache]: Analyzing trace with hash 409036854, now seen corresponding path program 3 times [2024-11-19 11:10:13,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:13,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150680380] [2024-11-19 11:10:13,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:10:13,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:13,827 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 11:10:13,827 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:13,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-19 11:10:13,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:13,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150680380] [2024-11-19 11:10:13,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150680380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:13,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392592403] [2024-11-19 11:10:13,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 11:10:13,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:13,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:13,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:13,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 11:10:13,978 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-19 11:10:13,979 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:13,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 11:10:13,982 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-19 11:10:14,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-19 11:10:14,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392592403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:14,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:14,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-19 11:10:14,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768134649] [2024-11-19 11:10:14,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:14,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 11:10:14,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 11:10:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-19 11:10:14,211 INFO L87 Difference]: Start difference. First operand 724 states and 796 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-19 11:10:14,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:14,311 INFO L93 Difference]: Finished difference Result 1287 states and 1476 transitions. [2024-11-19 11:10:14,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 11:10:14,312 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 135 [2024-11-19 11:10:14,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:14,317 INFO L225 Difference]: With dead ends: 1287 [2024-11-19 11:10:14,317 INFO L226 Difference]: Without dead ends: 1286 [2024-11-19 11:10:14,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2024-11-19 11:10:14,318 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:14,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:10:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-19 11:10:14,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1286. [2024-11-19 11:10:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1286 states, 1031 states have (on average 1.0688651794374393) internal successors, (1102), 1026 states have internal predecessors, (1102), 48 states have call successors, (48), 47 states have call predecessors, (48), 205 states have return successors, (212), 212 states have call predecessors, (212), 47 states have call successors, (212) [2024-11-19 11:10:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1286 states to 1286 states and 1362 transitions. [2024-11-19 11:10:14,394 INFO L78 Accepts]: Start accepts. Automaton has 1286 states and 1362 transitions. Word has length 135 [2024-11-19 11:10:14,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:14,395 INFO L471 AbstractCegarLoop]: Abstraction has 1286 states and 1362 transitions. [2024-11-19 11:10:14,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2024-11-19 11:10:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1286 states and 1362 transitions. [2024-11-19 11:10:14,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-19 11:10:14,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:14,398 INFO L215 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1] [2024-11-19 11:10:14,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 11:10:14,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:14,599 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:14,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:14,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1617795594, now seen corresponding path program 4 times [2024-11-19 11:10:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:14,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004219882] [2024-11-19 11:10:14,599 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:10:14,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:14,629 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:10:14,629 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:14,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2024-11-19 11:10:14,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:14,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004219882] [2024-11-19 11:10:14,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004219882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:14,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540126249] [2024-11-19 11:10:14,981 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 11:10:14,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:14,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:14,983 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:14,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 11:10:15,058 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 11:10:15,058 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:15,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-19 11:10:15,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 18 proven. 1311 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-19 11:10:16,108 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 18 proven. 1377 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-19 11:10:18,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540126249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:18,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:18,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 45, 51] total 69 [2024-11-19 11:10:18,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324766696] [2024-11-19 11:10:18,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:18,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-19 11:10:18,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:18,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-19 11:10:18,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=4026, Unknown=0, NotChecked=0, Total=4692 [2024-11-19 11:10:18,387 INFO L87 Difference]: Start difference. First operand 1286 states and 1362 transitions. Second operand has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-19 11:10:19,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:19,670 INFO L93 Difference]: Finished difference Result 1538 states and 1642 transitions. [2024-11-19 11:10:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-19 11:10:19,671 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) Word has length 155 [2024-11-19 11:10:19,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:19,677 INFO L225 Difference]: With dead ends: 1538 [2024-11-19 11:10:19,677 INFO L226 Difference]: Without dead ends: 1387 [2024-11-19 11:10:19,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 235 SyntacticMatches, 39 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3729 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1621, Invalid=8479, Unknown=0, NotChecked=0, Total=10100 [2024-11-19 11:10:19,684 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 488 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:19,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 1280 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:10:19,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-19 11:10:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1369. [2024-11-19 11:10:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1098 states have (on average 1.0628415300546448) internal successors, (1167), 1092 states have internal predecessors, (1167), 48 states have call successors, (48), 47 states have call predecessors, (48), 221 states have return successors, (229), 229 states have call predecessors, (229), 47 states have call successors, (229) [2024-11-19 11:10:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1444 transitions. [2024-11-19 11:10:19,751 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1444 transitions. Word has length 155 [2024-11-19 11:10:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:19,752 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 1444 transitions. [2024-11-19 11:10:19,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 67 states have (on average 2.5074626865671643) internal successors, (168), 51 states have internal predecessors, (168), 28 states have call successors, (30), 19 states have call predecessors, (30), 14 states have return successors, (21), 14 states have call predecessors, (21), 10 states have call successors, (21) [2024-11-19 11:10:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1444 transitions. [2024-11-19 11:10:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-19 11:10:19,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:19,756 INFO L215 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1] [2024-11-19 11:10:19,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 11:10:19,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 11:10:19,960 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:19,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:19,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1572402623, now seen corresponding path program 5 times [2024-11-19 11:10:19,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:19,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790025176] [2024-11-19 11:10:19,961 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:10:19,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:20,031 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2024-11-19 11:10:20,032 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-19 11:10:20,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:20,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790025176] [2024-11-19 11:10:20,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790025176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:20,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013307822] [2024-11-19 11:10:20,344 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:10:20,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:20,346 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:20,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 11:10:20,457 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 26 check-sat command(s) [2024-11-19 11:10:20,457 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:20,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 11:10:20,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-19 11:10:20,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1690 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-19 11:10:22,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013307822] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:22,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:22,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2024-11-19 11:10:22,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616256442] [2024-11-19 11:10:22,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:22,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 11:10:22,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:22,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 11:10:22,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:10:22,148 INFO L87 Difference]: Start difference. First operand 1369 states and 1444 transitions. Second operand has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-19 11:10:22,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:22,338 INFO L93 Difference]: Finished difference Result 2882 states and 3271 transitions. [2024-11-19 11:10:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-19 11:10:22,339 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) Word has length 170 [2024-11-19 11:10:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:22,350 INFO L225 Difference]: With dead ends: 2882 [2024-11-19 11:10:22,350 INFO L226 Difference]: Without dead ends: 2881 [2024-11-19 11:10:22,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 11:10:22,352 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:22,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:10:22,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-11-19 11:10:22,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2024-11-19 11:10:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2313 states have (on average 1.0298313878080414) internal successors, (2382), 2298 states have internal predecessors, (2382), 48 states have call successors, (48), 47 states have call predecessors, (48), 518 states have return successors, (535), 535 states have call predecessors, (535), 47 states have call successors, (535) [2024-11-19 11:10:22,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 2965 transitions. [2024-11-19 11:10:22,521 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 2965 transitions. Word has length 170 [2024-11-19 11:10:22,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:22,521 INFO L471 AbstractCegarLoop]: Abstraction has 2881 states and 2965 transitions. [2024-11-19 11:10:22,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 34 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 16 states have return successors, (16), 16 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-19 11:10:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 2965 transitions. [2024-11-19 11:10:22,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-19 11:10:22,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:22,526 INFO L215 NwaCegarLoop]: trace histogram [26, 25, 25, 25, 25, 17, 17, 17, 17, 16, 1, 1, 1, 1, 1] [2024-11-19 11:10:22,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 11:10:22,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 11:10:22,727 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:22,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash -882499338, now seen corresponding path program 6 times [2024-11-19 11:10:22,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:22,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664025507] [2024-11-19 11:10:22,728 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 11:10:22,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:22,780 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2024-11-19 11:10:22,780 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-19 11:10:23,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:23,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664025507] [2024-11-19 11:10:23,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664025507] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:23,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899630864] [2024-11-19 11:10:23,699 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 11:10:23,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:23,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:23,700 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:23,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 11:10:23,828 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 26 check-sat command(s) [2024-11-19 11:10:23,828 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:23,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-19 11:10:23,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-19 11:10:23,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:40,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2230 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-19 11:10:40,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899630864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:40,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:40,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 71 [2024-11-19 11:10:40,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226348345] [2024-11-19 11:10:40,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:40,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2024-11-19 11:10:40,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:40,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2024-11-19 11:10:40,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2024-11-19 11:10:40,402 INFO L87 Difference]: Start difference. First operand 2881 states and 2965 transitions. Second operand has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-19 11:10:40,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:40,728 INFO L93 Difference]: Finished difference Result 6896 states and 7797 transitions. [2024-11-19 11:10:40,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-11-19 11:10:40,729 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) Word has length 215 [2024-11-19 11:10:40,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:40,746 INFO L225 Difference]: With dead ends: 6896 [2024-11-19 11:10:40,746 INFO L226 Difference]: Without dead ends: 5420 [2024-11-19 11:10:40,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1575 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1331, Invalid=3781, Unknown=0, NotChecked=0, Total=5112 [2024-11-19 11:10:40,750 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:40,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:10:40,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2024-11-19 11:10:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5420. [2024-11-19 11:10:40,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 4355 states have (on average 1.0135476463834672) internal successors, (4414), 4322 states have internal predecessors, (4414), 48 states have call successors, (48), 47 states have call predecessors, (48), 1015 states have return successors, (1050), 1050 states have call predecessors, (1050), 47 states have call successors, (1050) [2024-11-19 11:10:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 5512 transitions. [2024-11-19 11:10:41,005 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 5512 transitions. Word has length 215 [2024-11-19 11:10:41,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:41,007 INFO L471 AbstractCegarLoop]: Abstraction has 5420 states and 5512 transitions. [2024-11-19 11:10:41,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 2.0985915492957745) internal successors, (149), 72 states have internal predecessors, (149), 1 states have call successors, (2), 1 states have call predecessors, (2), 35 states have return successors, (35), 35 states have call predecessors, (35), 1 states have call successors, (35) [2024-11-19 11:10:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 5512 transitions. [2024-11-19 11:10:41,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-19 11:10:41,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:41,011 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2024-11-19 11:10:41,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 11:10:41,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-19 11:10:41,212 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:41,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:41,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1766705516, now seen corresponding path program 5 times [2024-11-19 11:10:41,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:41,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174839818] [2024-11-19 11:10:41,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:10:41,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:41,386 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-19 11:10:41,386 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:45,504 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:45,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:45,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174839818] [2024-11-19 11:10:45,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174839818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:45,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777479650] [2024-11-19 11:10:45,505 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 11:10:45,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:45,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:45,507 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:45,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 11:10:45,904 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-19 11:10:45,904 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 11:10:45,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-19 11:10:45,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:46,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:10:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:10:52,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777479650] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:10:52,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:10:52,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2024-11-19 11:10:52,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2676315] [2024-11-19 11:10:52,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:10:52,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2024-11-19 11:10:52,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:10:52,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2024-11-19 11:10:52,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2024-11-19 11:10:52,354 INFO L87 Difference]: Start difference. First operand 5420 states and 5512 transitions. Second operand has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:53,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:10:53,770 INFO L93 Difference]: Finished difference Result 5445 states and 5512 transitions. [2024-11-19 11:10:53,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-19 11:10:53,770 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2024-11-19 11:10:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:10:53,787 INFO L225 Difference]: With dead ends: 5445 [2024-11-19 11:10:53,787 INFO L226 Difference]: Without dead ends: 5444 [2024-11-19 11:10:53,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11393 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=13906, Invalid=33836, Unknown=0, NotChecked=0, Total=47742 [2024-11-19 11:10:53,792 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 827 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:10:53,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 849 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:10:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2024-11-19 11:10:54,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 5419. [2024-11-19 11:10:54,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 4355 states have (on average 1.0133180252583238) internal successors, (4413), 4321 states have internal predecessors, (4413), 48 states have call successors, (48), 47 states have call predecessors, (48), 1015 states have return successors, (1050), 1050 states have call predecessors, (1050), 47 states have call successors, (1050) [2024-11-19 11:10:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 5511 transitions. [2024-11-19 11:10:54,053 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 5511 transitions. Word has length 236 [2024-11-19 11:10:54,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:10:54,054 INFO L471 AbstractCegarLoop]: Abstraction has 5419 states and 5511 transitions. [2024-11-19 11:10:54,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 1.9947089947089947) internal successors, (377), 98 states have internal predecessors, (377), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:10:54,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 5511 transitions. [2024-11-19 11:10:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-19 11:10:54,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:10:54,065 INFO L215 NwaCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 35, 35, 34, 1, 1, 1, 1, 1] [2024-11-19 11:10:54,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-19 11:10:54,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-19 11:10:54,266 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 11:10:54,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:10:54,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1765132790, now seen corresponding path program 7 times [2024-11-19 11:10:54,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:10:54,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131017866] [2024-11-19 11:10:54,267 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 11:10:54,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:10:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:10:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2024-11-19 11:10:57,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:10:57,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131017866] [2024-11-19 11:10:57,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131017866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:10:57,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842041699] [2024-11-19 11:10:57,369 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-19 11:10:57,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:10:57,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:10:57,371 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:10:57,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 11:10:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:10:57,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-19 11:10:57,726 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:10:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 6020 backedges. 2975 proven. 172 refuted. 0 times theorem prover too weak. 2873 trivial. 0 not checked. [2024-11-19 11:10:59,399 INFO L311 TraceCheckSpWp]: Computing backward predicates...