./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f 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/nla-digbench-scaling/freire1_valuebound100.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 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:22:17,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:22:17,332 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:22:17,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:22:17,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:22:17,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:22:17,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:22:17,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:22:17,383 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:22:17,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:22:17,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:22:17,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:22:17,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:22:17,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:22:17,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:22:17,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:22:17,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:22:17,389 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:22:17,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:22:17,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:22:17,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:22:17,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:22:17,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:22:17,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:22:17,395 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:22:17,396 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:22:17,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:22:17,396 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:22:17,396 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:22:17,396 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:22:17,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:22:17,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:22:17,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:22:17,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:22:17,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:22:17,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:22:17,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:22:17,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:22:17,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:22:17,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:22:17,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:22:17,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:22:17,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:22:17,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:22:17,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d [2024-11-12 17:22:17,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:22:17,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:22:17,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:22:17,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:22:17,676 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:22:17,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2024-11-12 17:22:19,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:22:19,336 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:22:19,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2024-11-12 17:22:19,342 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6098c4a/470ddcee8b4049e3b110ee28009f6474/FLAGcc555568b [2024-11-12 17:22:19,353 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c6098c4a/470ddcee8b4049e3b110ee28009f6474 [2024-11-12 17:22:19,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:22:19,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:22:19,358 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:22:19,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:22:19,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:22:19,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c4d8c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19, skipping insertion in model container [2024-11-12 17:22:19,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:22:19,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:22:19,567 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:22:19,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:22:19,593 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:22:19,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19 WrapperNode [2024-11-12 17:22:19,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:22:19,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:22:19,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:22:19,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:22:19,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,623 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-11-12 17:22:19,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:22:19,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:22:19,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:22:19,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:22:19,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,634 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,647 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]. [2024-11-12 17:22:19,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:22:19,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:22:19,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:22:19,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:22:19,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (1/1) ... [2024-11-12 17:22:19,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:22:19,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:19,699 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) [2024-11-12 17:22:19,702 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 [2024-11-12 17:22:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:22:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:22:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:22:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:22:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 17:22:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 17:22:19,817 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:22:19,819 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:22:19,980 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-12 17:22:19,981 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:22:19,993 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:22:19,993 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 17:22:19,994 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:22:19 BoogieIcfgContainer [2024-11-12 17:22:19,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:22:19,996 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:22:19,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:22:19,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:22:19,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:22:19" (1/3) ... [2024-11-12 17:22:20,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576b7e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:22:20, skipping insertion in model container [2024-11-12 17:22:20,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:22:19" (2/3) ... [2024-11-12 17:22:20,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576b7e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:22:20, skipping insertion in model container [2024-11-12 17:22:20,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:22:19" (3/3) ... [2024-11-12 17:22:20,002 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound100.c [2024-11-12 17:22:20,015 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:22:20,016 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-12 17:22:20,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:22:20,074 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;@2b88236a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:22:20,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-12 17:22:20,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 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) [2024-11-12 17:22:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-12 17:22:20,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:20,087 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-12 17:22:20,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:20,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:20,093 INFO L85 PathProgramCache]: Analyzing trace with hash 889508859, now seen corresponding path program 1 times [2024-11-12 17:22:20,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:20,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595237622] [2024-11-12 17:22:20,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:22:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:22:20,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:20,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595237622] [2024-11-12 17:22:20,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595237622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:22:20,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:22:20,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:22:20,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145208865] [2024-11-12 17:22:20,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:22:20,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-12 17:22:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:20,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-12 17:22:20,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:22:20,284 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:22:20,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:20,307 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-11-12 17:22:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-12 17:22:20,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-12 17:22:20,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:20,317 INFO L225 Difference]: With dead ends: 54 [2024-11-12 17:22:20,317 INFO L226 Difference]: Without dead ends: 21 [2024-11-12 17:22:20,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-12 17:22:20,325 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:20,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:22:20,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-12 17:22:20,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-12 17:22:20,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-12 17:22:20,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-12 17:22:20,369 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 6 [2024-11-12 17:22:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:20,369 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-12 17:22:20,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:22:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-12 17:22:20,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-12 17:22:20,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:20,371 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:22:20,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 17:22:20,371 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:20,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819342, now seen corresponding path program 1 times [2024-11-12 17:22:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:20,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291310854] [2024-11-12 17:22:20,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:20,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:20,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051793137] [2024-11-12 17:22:20,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:20,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:20,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:20,408 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) [2024-11-12 17:22:20,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:22:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:22:20,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 17:22:20,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:22:20,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:22:20,508 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:22:20,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:20,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291310854] [2024-11-12 17:22:20,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:22:20,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051793137] [2024-11-12 17:22:20,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051793137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:22:20,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:22:20,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:22:20,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418389423] [2024-11-12 17:22:20,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:22:20,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:22:20,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:20,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:22:20,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:22:20,515 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:22:20,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:20,559 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-11-12 17:22:20,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:22:20,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-12 17:22:20,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:20,562 INFO L225 Difference]: With dead ends: 34 [2024-11-12 17:22:20,562 INFO L226 Difference]: Without dead ends: 28 [2024-11-12 17:22:20,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:22:20,564 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:20,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:22:20,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-12 17:22:20,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-12 17:22:20,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 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) [2024-11-12 17:22:20,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-11-12 17:22:20,577 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 7 [2024-11-12 17:22:20,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:20,578 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-11-12 17:22:20,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 17:22:20,578 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-11-12 17:22:20,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-12 17:22:20,580 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:20,581 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:22:20,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 17:22:20,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:20,782 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:20,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:20,783 INFO L85 PathProgramCache]: Analyzing trace with hash 888630314, now seen corresponding path program 1 times [2024-11-12 17:22:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:20,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131765129] [2024-11-12 17:22:20,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:20,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:20,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767171843] [2024-11-12 17:22:20,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:20,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:20,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:20,828 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) [2024-11-12 17:22:20,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:22:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:22:20,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:22:20,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:22:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:22:20,943 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:22:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 17:22:21,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:21,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131765129] [2024-11-12 17:22:21,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:22:21,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767171843] [2024-11-12 17:22:21,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767171843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:22:21,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:22:21,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-12 17:22:21,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646093160] [2024-11-12 17:22:21,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:22:21,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:22:21,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:21,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:22:21,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:22:21,061 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2024-11-12 17:22:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:21,147 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2024-11-12 17:22:21,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:22:21,148 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) Word has length 18 [2024-11-12 17:22:21,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:21,149 INFO L225 Difference]: With dead ends: 50 [2024-11-12 17:22:21,149 INFO L226 Difference]: Without dead ends: 40 [2024-11-12 17:22:21,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:22:21,151 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:21,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 41 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:22:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-12 17:22:21,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-12 17:22:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:22:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2024-11-12 17:22:21,161 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 18 [2024-11-12 17:22:21,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:21,162 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2024-11-12 17:22:21,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 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) [2024-11-12 17:22:21,163 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2024-11-12 17:22:21,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-12 17:22:21,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:21,164 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-12 17:22:21,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 17:22:21,368 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,SelfDestructingSolverStorable2 [2024-11-12 17:22:21,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:21,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash 860302606, now seen corresponding path program 2 times [2024-11-12 17:22:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:21,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572400916] [2024-11-12 17:22:21,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:21,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [458736655] [2024-11-12 17:22:21,416 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:22:21,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:21,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:21,418 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) [2024-11-12 17:22:21,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:22:21,473 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:22:21,474 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:22:21,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 17:22:21,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:22:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:22:21,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:22:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 17:22:21,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:21,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572400916] [2024-11-12 17:22:21,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:22:21,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458736655] [2024-11-12 17:22:21,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458736655] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:22:21,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:22:21,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-12 17:22:21,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704951586] [2024-11-12 17:22:21,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:22:21,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:22:21,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:21,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:22:21,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:22:21,821 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:22:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:22,060 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2024-11-12 17:22:22,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:22:22,061 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 51 [2024-11-12 17:22:22,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:22,062 INFO L225 Difference]: With dead ends: 83 [2024-11-12 17:22:22,062 INFO L226 Difference]: Without dead ends: 82 [2024-11-12 17:22:22,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-12 17:22:22,064 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 21 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:22,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 127 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:22:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-12 17:22:22,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-12 17:22:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-12 17:22:22,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2024-11-12 17:22:22,076 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 51 [2024-11-12 17:22:22,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:22,077 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2024-11-12 17:22:22,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:22:22,077 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2024-11-12 17:22:22,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-12 17:22:22,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:22,080 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-11-12 17:22:22,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 17:22:22,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:22,281 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:22,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:22,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1105989774, now seen corresponding path program 3 times [2024-11-12 17:22:22,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:22,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790518019] [2024-11-12 17:22:22,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:22,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:22,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:22,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976441972] [2024-11-12 17:22:22,378 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 17:22:22,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:22,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:22,383 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) [2024-11-12 17:22:22,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 17:22:22,491 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-12 17:22:22,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:22:22,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 17:22:22,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:22:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-12 17:22:22,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:22:23,245 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-12 17:22:23,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790518019] [2024-11-12 17:22:23,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:22:23,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976441972] [2024-11-12 17:22:23,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976441972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:22:23,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:22:23,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-12 17:22:23,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942226464] [2024-11-12 17:22:23,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:22:23,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-12 17:22:23,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:23,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-12 17:22:23,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-12 17:22:23,251 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 17:22:24,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:24,119 INFO L93 Difference]: Finished difference Result 167 states and 199 transitions. [2024-11-12 17:22:24,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-12 17:22:24,120 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 117 [2024-11-12 17:22:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:24,122 INFO L225 Difference]: With dead ends: 167 [2024-11-12 17:22:24,122 INFO L226 Difference]: Without dead ends: 166 [2024-11-12 17:22:24,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-11-12 17:22:24,124 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 36 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:24,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 469 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 17:22:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-12 17:22:24,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-12 17:22:24,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-12 17:22:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2024-11-12 17:22:24,148 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 117 [2024-11-12 17:22:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:24,148 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2024-11-12 17:22:24,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-12 17:22:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2024-11-12 17:22:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-12 17:22:24,153 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:24,153 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2024-11-12 17:22:24,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 17:22:24,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:24,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:24,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:24,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1244055666, now seen corresponding path program 4 times [2024-11-12 17:22:24,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:24,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919588563] [2024-11-12 17:22:24,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:24,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:24,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597545444] [2024-11-12 17:22:24,468 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 17:22:24,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:24,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:24,474 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) [2024-11-12 17:22:24,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 17:22:24,599 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 17:22:24,599 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:22:24,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-12 17:22:24,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:22:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 17:22:25,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:22:26,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-12 17:22:26,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:26,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919588563] [2024-11-12 17:22:26,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:22:26,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597545444] [2024-11-12 17:22:26,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597545444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:22:26,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:22:26,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-12 17:22:26,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780358279] [2024-11-12 17:22:26,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:22:26,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-12 17:22:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:26,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-12 17:22:26,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-11-12 17:22:26,444 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-12 17:22:29,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:29,536 INFO L93 Difference]: Finished difference Result 335 states and 403 transitions. [2024-11-12 17:22:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-12 17:22:29,537 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 249 [2024-11-12 17:22:29,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:29,540 INFO L225 Difference]: With dead ends: 335 [2024-11-12 17:22:29,540 INFO L226 Difference]: Without dead ends: 334 [2024-11-12 17:22:29,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-11-12 17:22:29,543 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 75 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:29,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1829 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-12 17:22:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-12 17:22:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2024-11-12 17:22:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-12 17:22:29,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 379 transitions. [2024-11-12 17:22:29,592 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 379 transitions. Word has length 249 [2024-11-12 17:22:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:29,593 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 379 transitions. [2024-11-12 17:22:29,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-12 17:22:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 379 transitions. [2024-11-12 17:22:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-12 17:22:29,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:29,608 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2024-11-12 17:22:29,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 17:22:29,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:29,813 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:29,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash 543229326, now seen corresponding path program 5 times [2024-11-12 17:22:29,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:29,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495333488] [2024-11-12 17:22:29,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:29,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:29,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [499627215] [2024-11-12 17:22:29,990 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 17:22:29,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:29,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:29,994 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) [2024-11-12 17:22:29,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 17:22:30,221 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-12 17:22:30,221 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:22:30,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-12 17:22:30,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:22:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-12 17:22:31,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:22:34,836 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-12 17:22:34,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:34,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495333488] [2024-11-12 17:22:34,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:22:34,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499627215] [2024-11-12 17:22:34,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499627215] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:22:34,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:22:34,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-11-12 17:22:34,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500941727] [2024-11-12 17:22:34,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:22:34,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-12 17:22:34,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:34,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-12 17:22:34,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-11-12 17:22:34,845 INFO L87 Difference]: Start difference. First operand 334 states and 379 transitions. Second operand has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-12 17:22:47,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:47,883 INFO L93 Difference]: Finished difference Result 671 states and 811 transitions. [2024-11-12 17:22:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-12 17:22:47,884 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 513 [2024-11-12 17:22:47,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:47,889 INFO L225 Difference]: With dead ends: 671 [2024-11-12 17:22:47,889 INFO L226 Difference]: Without dead ends: 670 [2024-11-12 17:22:47,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-11-12 17:22:47,894 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 147 mSDsluCounter, 6965 mSDsCounter, 0 mSdLazyCounter, 11375 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7161 SdHoareTripleChecker+Invalid, 11424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:47,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7161 Invalid, 11424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 11375 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-12 17:22:47,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-12 17:22:47,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2024-11-12 17:22:47,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-12 17:22:47,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 763 transitions. [2024-11-12 17:22:47,947 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 763 transitions. Word has length 513 [2024-11-12 17:22:47,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:47,948 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 763 transitions. [2024-11-12 17:22:47,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-12 17:22:47,949 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 763 transitions. [2024-11-12 17:22:47,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-11-12 17:22:47,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:47,978 INFO L218 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2024-11-12 17:22:47,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-12 17:22:48,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:48,179 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:48,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:48,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1361486222, now seen corresponding path program 6 times [2024-11-12 17:22:48,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:48,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487514714] [2024-11-12 17:22:48,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:48,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:48,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1100511582] [2024-11-12 17:22:48,505 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-12 17:22:48,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:48,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:48,510 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) [2024-11-12 17:22:48,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 17:22:49,344 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-12 17:22:49,344 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:22:49,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-12 17:22:49,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:22:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 48363 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-12 17:22:53,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:22:53,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:22:53,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487514714] [2024-11-12 17:22:53,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:22:53,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100511582] [2024-11-12 17:22:53,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100511582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:22:53,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:22:53,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-11-12 17:22:53,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506351879] [2024-11-12 17:22:53,656 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:22:53,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-12 17:22:53,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:22:53,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-12 17:22:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-11-12 17:22:53,667 INFO L87 Difference]: Start difference. First operand 670 states and 763 transitions. Second operand has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-12 17:22:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:22:59,460 INFO L93 Difference]: Finished difference Result 682 states and 777 transitions. [2024-11-12 17:22:59,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-12 17:22:59,462 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 1041 [2024-11-12 17:22:59,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:22:59,467 INFO L225 Difference]: With dead ends: 682 [2024-11-12 17:22:59,468 INFO L226 Difference]: Without dead ends: 681 [2024-11-12 17:22:59,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-11-12 17:22:59,474 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 473 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 17:22:59,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 247 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 17:22:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-12 17:22:59,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 677. [2024-11-12 17:22:59,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 580 states have (on average 1.0017241379310344) internal successors, (581), 580 states have internal predecessors, (581), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-12 17:22:59,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 771 transitions. [2024-11-12 17:22:59,517 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 771 transitions. Word has length 1041 [2024-11-12 17:22:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:22:59,519 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 771 transitions. [2024-11-12 17:22:59,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-12 17:22:59,520 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 771 transitions. [2024-11-12 17:22:59,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2024-11-12 17:22:59,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:22:59,528 INFO L218 NwaCegarLoop]: trace histogram [96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1, 1] [2024-11-12 17:22:59,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-12 17:22:59,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:59,728 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-12 17:22:59,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:22:59,729 INFO L85 PathProgramCache]: Analyzing trace with hash -444417366, now seen corresponding path program 7 times [2024-11-12 17:22:59,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:22:59,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125924236] [2024-11-12 17:22:59,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:22:59,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:22:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:22:59,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113681003] [2024-11-12 17:22:59,907 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-12 17:22:59,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:22:59,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:22:59,909 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) [2024-11-12 17:22:59,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 17:23:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:23:00,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-11-12 17:23:00,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:23:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-12 17:23:04,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:23:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-12 17:23:17,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:23:17,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125924236] [2024-11-12 17:23:17,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:23:17,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113681003] [2024-11-12 17:23:17,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113681003] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:23:17,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-12 17:23:17,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-11-12 17:23:17,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240338867] [2024-11-12 17:23:17,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-12 17:23:17,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-11-12 17:23:17,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:23:17,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-11-12 17:23:17,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-11-12 17:23:17,473 INFO L87 Difference]: Start difference. First operand 677 states and 771 transitions. Second operand has 194 states, 193 states have (on average 5.979274611398964) internal successors, (1154), 194 states have internal predecessors, (1154), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190)