./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/loop-zilu/benchmark22_conjunctive.i -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 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:01:26,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:01:26,381 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:01:26,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:01:26,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:01:26,407 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:01:26,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:01:26,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:01:26,409 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:01:26,410 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:01:26,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:01:26,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:01:26,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:01:26,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:01:26,411 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:01:26,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:01:26,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:01:26,411 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:01:26,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:01:26,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:01:26,412 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:01:26,412 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:01:26,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:01:26,413 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:01:26,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:01:26,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:01:26,414 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:01:26,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:01:26,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:01:26,414 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 6ed0b12ce7ca8412687eea32cd5c4beaf5275fff5c5bfef18c07965c0f054672 [2025-03-17 15:01:26,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:01:26,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:01:26,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:01:26,627 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:01:26,627 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:01:26,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2025-03-17 15:01:27,688 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2987ef161/97203da0df2443e3ace167731d3be3e3/FLAG2cdb5f30a [2025-03-17 15:01:27,899 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:01:27,900 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark22_conjunctive.i [2025-03-17 15:01:27,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2987ef161/97203da0df2443e3ace167731d3be3e3/FLAG2cdb5f30a [2025-03-17 15:01:28,240 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2987ef161/97203da0df2443e3ace167731d3be3e3 [2025-03-17 15:01:28,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:01:28,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:01:28,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:01:28,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:01:28,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:01:28,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac07cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28, skipping insertion in model container [2025-03-17 15:01:28,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:01:28,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:01:28,364 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:01:28,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:01:28,384 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:01:28,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28 WrapperNode [2025-03-17 15:01:28,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:01:28,386 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:01:28,386 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:01:28,386 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:01:28,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,402 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 42 [2025-03-17 15:01:28,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:01:28,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:01:28,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:01:28,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:01:28,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,417 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]. [2025-03-17 15:01:28,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:01:28,421 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:01:28,421 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:01:28,421 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:01:28,422 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (1/1) ... [2025-03-17 15:01:28,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:01:28,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:28,446 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) [2025-03-17 15:01:28,449 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 [2025-03-17 15:01:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:01:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:01:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:01:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:01:28,503 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:01:28,504 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:01:28,594 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-17 15:01:28,594 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:01:28,600 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:01:28,600 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:01:28,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:01:28 BoogieIcfgContainer [2025-03-17 15:01:28,600 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:01:28,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:01:28,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:01:28,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:01:28,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:01:28" (1/3) ... [2025-03-17 15:01:28,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410705fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:01:28, skipping insertion in model container [2025-03-17 15:01:28,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:01:28" (2/3) ... [2025-03-17 15:01:28,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@410705fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:01:28, skipping insertion in model container [2025-03-17 15:01:28,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:01:28" (3/3) ... [2025-03-17 15:01:28,606 INFO L128 eAbstractionObserver]: Analyzing ICFG benchmark22_conjunctive.i [2025-03-17 15:01:28,615 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:01:28,617 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG benchmark22_conjunctive.i that has 1 procedures, 20 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-03-17 15:01:28,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:01:28,666 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;@7fac6234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:01:28,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-17 15:01:28,670 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 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) [2025-03-17 15:01:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 15:01:28,673 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:28,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 15:01:28,674 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:28,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:28,678 INFO L85 PathProgramCache]: Analyzing trace with hash 51497650, now seen corresponding path program 1 times [2025-03-17 15:01:28,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:28,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131788291] [2025-03-17 15:01:28,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:28,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:28,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 15:01:28,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 15:01:28,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:28,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:28,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:28,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131788291] [2025-03-17 15:01:28,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131788291] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:28,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:28,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:01:28,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96481689] [2025-03-17 15:01:28,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:28,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:01:28,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:28,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:01:28,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:28,837 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.6) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:28,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:28,875 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2025-03-17 15:01:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:01:28,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-17 15:01:28,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:28,880 INFO L225 Difference]: With dead ends: 33 [2025-03-17 15:01:28,880 INFO L226 Difference]: Without dead ends: 16 [2025-03-17 15:01:28,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:28,884 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:28,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:28,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-17 15:01:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2025-03-17 15:01:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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) [2025-03-17 15:01:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2025-03-17 15:01:28,911 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2025-03-17 15:01:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:28,911 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2025-03-17 15:01:28,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2025-03-17 15:01:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 15:01:28,912 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:28,912 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 15:01:28,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:01:28,913 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:28,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:28,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1596427133, now seen corresponding path program 1 times [2025-03-17 15:01:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:28,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028898954] [2025-03-17 15:01:28,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:28,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:28,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 15:01:28,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 15:01:28,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:28,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:28,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:28,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028898954] [2025-03-17 15:01:28,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028898954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:28,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:28,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:01:28,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138055599] [2025-03-17 15:01:28,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:28,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:01:28,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:28,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:01:28,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:28,964 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:28,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:28,984 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2025-03-17 15:01:28,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:01:28,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 15:01:28,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:28,985 INFO L225 Difference]: With dead ends: 17 [2025-03-17 15:01:28,986 INFO L226 Difference]: Without dead ends: 16 [2025-03-17 15:01:28,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:01:28,987 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:28,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:28,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-17 15:01:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-17 15:01:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 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) [2025-03-17 15:01:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2025-03-17 15:01:28,991 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2025-03-17 15:01:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:28,992 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2025-03-17 15:01:28,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2025-03-17 15:01:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 15:01:28,992 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:28,992 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:01:28,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:01:28,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:28,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash -2050366448, now seen corresponding path program 1 times [2025-03-17 15:01:28,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:28,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435758705] [2025-03-17 15:01:28,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:28,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:29,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 15:01:29,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 15:01:29,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:29,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:29,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435758705] [2025-03-17 15:01:29,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435758705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:29,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:29,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:01:29,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451921265] [2025-03-17 15:01:29,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:29,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:01:29,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:29,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:01:29,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:29,051 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2025-03-17 15:01:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:29,073 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2025-03-17 15:01:29,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:01:29,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2025-03-17 15:01:29,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:29,074 INFO L225 Difference]: With dead ends: 16 [2025-03-17 15:01:29,074 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 15:01:29,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:29,075 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:29,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:29,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 15:01:29,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 15:01:29,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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) [2025-03-17 15:01:29,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2025-03-17 15:01:29,077 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2025-03-17 15:01:29,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:29,077 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2025-03-17 15:01:29,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2025-03-17 15:01:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2025-03-17 15:01:29,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-17 15:01:29,077 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:29,077 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:01:29,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 15:01:29,077 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:29,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash 863149531, now seen corresponding path program 1 times [2025-03-17 15:01:29,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:29,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260520728] [2025-03-17 15:01:29,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:29,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:29,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 15:01:29,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 15:01:29,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:29,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:29,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:29,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260520728] [2025-03-17 15:01:29,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260520728] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:29,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:01:29,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:01:29,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067252760] [2025-03-17 15:01:29,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:29,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:01:29,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:29,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:01:29,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:29,129 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:29,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:29,149 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2025-03-17 15:01:29,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:01:29,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-17 15:01:29,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:29,150 INFO L225 Difference]: With dead ends: 18 [2025-03-17 15:01:29,150 INFO L226 Difference]: Without dead ends: 17 [2025-03-17 15:01:29,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:01:29,150 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:29,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:29,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-03-17 15:01:29,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-03-17 15:01:29,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 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) [2025-03-17 15:01:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2025-03-17 15:01:29,153 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2025-03-17 15:01:29,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:29,153 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2025-03-17 15:01:29,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2025-03-17 15:01:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 15:01:29,153 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:29,153 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:01:29,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:01:29,153 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:29,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:29,154 INFO L85 PathProgramCache]: Analyzing trace with hash 118465880, now seen corresponding path program 1 times [2025-03-17 15:01:29,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:29,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680572642] [2025-03-17 15:01:29,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:29,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:29,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 15:01:29,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 15:01:29,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:29,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:29,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:29,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680572642] [2025-03-17 15:01:29,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680572642] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:29,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181512789] [2025-03-17 15:01:29,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:29,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:29,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:29,242 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) [2025-03-17 15:01:29,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:01:29,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 15:01:29,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 15:01:29,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:29,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:29,285 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:01:29,288 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:29,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:29,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181512789] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:29,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:29,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 12 [2025-03-17 15:01:29,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688192953] [2025-03-17 15:01:29,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:29,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:01:29,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:29,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:01:29,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:01:29,439 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 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) [2025-03-17 15:01:29,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:29,511 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2025-03-17 15:01:29,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:01:29,512 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-17 15:01:29,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:29,512 INFO L225 Difference]: With dead ends: 29 [2025-03-17 15:01:29,512 INFO L226 Difference]: Without dead ends: 28 [2025-03-17 15:01:29,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:01:29,513 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:29,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 35 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:29,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-03-17 15:01:29,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2025-03-17 15:01:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 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) [2025-03-17 15:01:29,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2025-03-17 15:01:29,516 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 11 [2025-03-17 15:01:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:29,516 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2025-03-17 15:01:29,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 13 states have internal predecessors, (31), 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) [2025-03-17 15:01:29,516 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2025-03-17 15:01:29,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 15:01:29,517 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:29,517 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 15:01:29,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:29,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:29,718 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:29,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:29,718 INFO L85 PathProgramCache]: Analyzing trace with hash -622525033, now seen corresponding path program 1 times [2025-03-17 15:01:29,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:29,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652046052] [2025-03-17 15:01:29,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:29,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:29,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 15:01:29,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 15:01:29,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:29,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:29,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652046052] [2025-03-17 15:01:29,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652046052] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:29,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952740830] [2025-03-17 15:01:29,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:29,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:29,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:29,768 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) [2025-03-17 15:01:29,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:01:29,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 15:01:29,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 15:01:29,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:29,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:29,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:01:29,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:29,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:29,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:29,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952740830] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:29,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:29,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 15:01:29,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13974836] [2025-03-17 15:01:29,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:29,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:01:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:29,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:01:29,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:01:29,914 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:29,954 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2025-03-17 15:01:29,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:01:29,955 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-17 15:01:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:29,955 INFO L225 Difference]: With dead ends: 28 [2025-03-17 15:01:29,956 INFO L226 Difference]: Without dead ends: 27 [2025-03-17 15:01:29,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:01:29,957 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:29,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:29,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-03-17 15:01:29,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-03-17 15:01:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 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) [2025-03-17 15:01:29,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2025-03-17 15:01:29,960 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 12 [2025-03-17 15:01:29,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:29,960 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2025-03-17 15:01:29,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:29,961 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2025-03-17 15:01:29,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:01:29,961 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:29,961 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:01:29,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 15:01:30,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-17 15:01:30,162 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:30,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:30,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1246103179, now seen corresponding path program 1 times [2025-03-17 15:01:30,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:30,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895680440] [2025-03-17 15:01:30,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:30,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:30,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:01:30,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:01:30,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:30,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:30,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:30,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895680440] [2025-03-17 15:01:30,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895680440] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:30,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744224793] [2025-03-17 15:01:30,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:01:30,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:30,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:30,209 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) [2025-03-17 15:01:30,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:01:30,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:01:30,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:01:30,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:01:30,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:30,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:01:30,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:30,253 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:30,253 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:30,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:30,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744224793] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:30,296 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:30,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 15:01:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361557679] [2025-03-17 15:01:30,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:30,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:01:30,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:30,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:01:30,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:01:30,298 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 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) [2025-03-17 15:01:30,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:30,335 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2025-03-17 15:01:30,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:01:30,335 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 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 14 [2025-03-17 15:01:30,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:30,335 INFO L225 Difference]: With dead ends: 36 [2025-03-17 15:01:30,335 INFO L226 Difference]: Without dead ends: 35 [2025-03-17 15:01:30,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:01:30,336 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:30,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:30,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-17 15:01:30,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-17 15:01:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.15625) internal successors, (37), 34 states have internal predecessors, (37), 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) [2025-03-17 15:01:30,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2025-03-17 15:01:30,340 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 14 [2025-03-17 15:01:30,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:30,340 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2025-03-17 15:01:30,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 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) [2025-03-17 15:01:30,341 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2025-03-17 15:01:30,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-17 15:01:30,341 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:30,341 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1] [2025-03-17 15:01:30,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 15:01:30,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:30,542 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:30,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:30,544 INFO L85 PathProgramCache]: Analyzing trace with hash -502694620, now seen corresponding path program 2 times [2025-03-17 15:01:30,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:30,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356573078] [2025-03-17 15:01:30,544 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:30,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:30,548 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-03-17 15:01:30,554 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 15:01:30,554 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:30,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:30,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:30,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356573078] [2025-03-17 15:01:30,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356573078] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:30,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019098921] [2025-03-17 15:01:30,642 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:30,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:30,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:30,645 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) [2025-03-17 15:01:30,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:01:30,663 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-03-17 15:01:30,671 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 15:01:30,671 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:30,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:30,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:01:30,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:30,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:01:30,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019098921] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:01:30,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:01:30,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2025-03-17 15:01:30,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548324732] [2025-03-17 15:01:30,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:01:30,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:01:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:30,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:01:30,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:01:30,810 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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) [2025-03-17 15:01:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:30,845 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2025-03-17 15:01:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:01:30,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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 23 [2025-03-17 15:01:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:30,845 INFO L225 Difference]: With dead ends: 35 [2025-03-17 15:01:30,845 INFO L226 Difference]: Without dead ends: 34 [2025-03-17 15:01:30,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:01:30,846 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:30,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 24 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-17 15:01:30,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-17 15:01:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 32 states have (on average 1.09375) internal successors, (35), 33 states have internal predecessors, (35), 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) [2025-03-17 15:01:30,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2025-03-17 15:01:30,851 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 23 [2025-03-17 15:01:30,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:30,851 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2025-03-17 15:01:30,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 9 states have internal predecessors, (23), 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) [2025-03-17 15:01:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2025-03-17 15:01:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-17 15:01:30,851 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:30,851 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1] [2025-03-17 15:01:30,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:31,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:31,052 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:31,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:31,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1596335947, now seen corresponding path program 2 times [2025-03-17 15:01:31,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:31,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424429419] [2025-03-17 15:01:31,052 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:31,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:31,065 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-03-17 15:01:31,070 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 15:01:31,070 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:31,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:31,145 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:31,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:31,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424429419] [2025-03-17 15:01:31,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424429419] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:31,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364790470] [2025-03-17 15:01:31,145 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:31,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:31,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:31,147 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) [2025-03-17 15:01:31,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:01:31,170 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-03-17 15:01:31,177 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 15:01:31,178 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:31,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:31,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:01:31,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:31,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:31,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:31,410 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:31,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364790470] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:31,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:31,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2025-03-17 15:01:31,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241670460] [2025-03-17 15:01:31,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:31,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 15:01:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:31,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 15:01:31,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:01:31,412 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 23 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:31,515 INFO L93 Difference]: Finished difference Result 51 states and 56 transitions. [2025-03-17 15:01:31,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 15:01:31,516 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2025-03-17 15:01:31,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:31,516 INFO L225 Difference]: With dead ends: 51 [2025-03-17 15:01:31,516 INFO L226 Difference]: Without dead ends: 50 [2025-03-17 15:01:31,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2025-03-17 15:01:31,517 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:31,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:01:31,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-03-17 15:01:31,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2025-03-17 15:01:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0833333333333333) internal successors, (52), 49 states have internal predecessors, (52), 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) [2025-03-17 15:01:31,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 52 transitions. [2025-03-17 15:01:31,521 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 52 transitions. Word has length 24 [2025-03-17 15:01:31,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:31,521 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 52 transitions. [2025-03-17 15:01:31,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.1818181818181817) internal successors, (70), 23 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:01:31,521 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 52 transitions. [2025-03-17 15:01:31,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-17 15:01:31,524 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:31,524 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1] [2025-03-17 15:01:31,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:31,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:31,725 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:31,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:31,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1778456765, now seen corresponding path program 2 times [2025-03-17 15:01:31,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:31,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446357110] [2025-03-17 15:01:31,725 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:31,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:31,731 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-03-17 15:01:31,737 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:01:31,737 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:31,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:31,847 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:31,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:31,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446357110] [2025-03-17 15:01:31,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446357110] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:31,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367337992] [2025-03-17 15:01:31,848 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:01:31,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:31,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:31,850 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) [2025-03-17 15:01:31,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:01:31,879 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-03-17 15:01:31,888 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 32 of 32 statements. [2025-03-17 15:01:31,888 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:01:31,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:31,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-17 15:01:31,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:32,035 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:32,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:32,183 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:32,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367337992] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:32,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:32,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2025-03-17 15:01:32,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477782558] [2025-03-17 15:01:32,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:32,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-17 15:01:32,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:32,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-17 15:01:32,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=585, Unknown=0, NotChecked=0, Total=702 [2025-03-17 15:01:32,188 INFO L87 Difference]: Start difference. First operand 50 states and 52 transitions. Second operand has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 27 states have internal predecessors, (86), 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) [2025-03-17 15:01:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:32,373 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2025-03-17 15:01:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 15:01:32,374 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 27 states have internal predecessors, (86), 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 32 [2025-03-17 15:01:32,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:32,374 INFO L225 Difference]: With dead ends: 50 [2025-03-17 15:01:32,374 INFO L226 Difference]: Without dead ends: 49 [2025-03-17 15:01:32,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2025-03-17 15:01:32,376 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:32,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:01:32,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2025-03-17 15:01:32,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2025-03-17 15:01:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 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) [2025-03-17 15:01:32,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2025-03-17 15:01:32,383 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 32 [2025-03-17 15:01:32,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:32,383 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2025-03-17 15:01:32,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 27 states have internal predecessors, (86), 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) [2025-03-17 15:01:32,383 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2025-03-17 15:01:32,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 15:01:32,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:32,384 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 1, 1, 1] [2025-03-17 15:01:32,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:32,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:32,584 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:32,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:32,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1594007731, now seen corresponding path program 3 times [2025-03-17 15:01:32,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:32,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161866612] [2025-03-17 15:01:32,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:01:32,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:32,593 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 48 statements into 8 equivalence classes. [2025-03-17 15:01:32,610 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:01:32,610 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 15:01:32,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:32,874 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:32,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:32,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161866612] [2025-03-17 15:01:32,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161866612] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:32,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820197704] [2025-03-17 15:01:32,875 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:01:32,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:32,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:32,877 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) [2025-03-17 15:01:32,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:01:32,900 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 48 statements into 8 equivalence classes. [2025-03-17 15:01:32,914 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:01:32,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 15:01:32,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:32,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 15:01:32,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:33,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:33,586 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:33,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820197704] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:33,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:33,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2025-03-17 15:01:33,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456820130] [2025-03-17 15:01:33,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:33,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-03-17 15:01:33,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:33,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-03-17 15:01:33,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1830, Unknown=0, NotChecked=0, Total=2162 [2025-03-17 15:01:33,588 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand has 47 states, 46 states have (on average 3.0869565217391304) internal successors, (142), 47 states have internal predecessors, (142), 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) [2025-03-17 15:01:33,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:33,960 INFO L93 Difference]: Finished difference Result 98 states and 105 transitions. [2025-03-17 15:01:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-17 15:01:33,961 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.0869565217391304) internal successors, (142), 47 states have internal predecessors, (142), 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 48 [2025-03-17 15:01:33,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:33,962 INFO L225 Difference]: With dead ends: 98 [2025-03-17 15:01:33,962 INFO L226 Difference]: Without dead ends: 97 [2025-03-17 15:01:33,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=530, Invalid=2892, Unknown=0, NotChecked=0, Total=3422 [2025-03-17 15:01:33,963 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:33,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:01:33,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-03-17 15:01:33,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2025-03-17 15:01:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.0104166666666667) internal successors, (97), 96 states have internal predecessors, (97), 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) [2025-03-17 15:01:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2025-03-17 15:01:33,968 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 48 [2025-03-17 15:01:33,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:33,968 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2025-03-17 15:01:33,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.0869565217391304) internal successors, (142), 47 states have internal predecessors, (142), 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) [2025-03-17 15:01:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2025-03-17 15:01:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-17 15:01:33,970 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:33,970 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 1, 1, 1] [2025-03-17 15:01:33,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 15:01:34,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:34,174 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:34,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:34,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1148218243, now seen corresponding path program 4 times [2025-03-17 15:01:34,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:34,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153347607] [2025-03-17 15:01:34,176 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:01:34,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:34,186 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 96 statements into 2 equivalence classes. [2025-03-17 15:01:34,209 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 15:01:34,209 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:01:34,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:35,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:35,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153347607] [2025-03-17 15:01:35,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153347607] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:35,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706726212] [2025-03-17 15:01:35,156 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:01:35,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:35,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:35,157 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) [2025-03-17 15:01:35,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:01:35,181 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 96 statements into 2 equivalence classes. [2025-03-17 15:01:35,200 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 15:01:35,200 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:01:35,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:35,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-17 15:01:35,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:36,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:37,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706726212] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:37,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:37,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2025-03-17 15:01:37,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752669514] [2025-03-17 15:01:37,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:37,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2025-03-17 15:01:37,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:37,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2025-03-17 15:01:37,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=7750, Unknown=0, NotChecked=0, Total=8930 [2025-03-17 15:01:37,223 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand has 95 states, 94 states have (on average 3.0425531914893615) internal successors, (286), 95 states have internal predecessors, (286), 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) [2025-03-17 15:01:38,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:38,761 INFO L93 Difference]: Finished difference Result 194 states and 209 transitions. [2025-03-17 15:01:38,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-03-17 15:01:38,762 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 3.0425531914893615) internal successors, (286), 95 states have internal predecessors, (286), 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 96 [2025-03-17 15:01:38,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:38,762 INFO L225 Difference]: With dead ends: 194 [2025-03-17 15:01:38,762 INFO L226 Difference]: Without dead ends: 193 [2025-03-17 15:01:38,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4052 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2090, Invalid=12916, Unknown=0, NotChecked=0, Total=15006 [2025-03-17 15:01:38,765 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:38,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:01:38,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2025-03-17 15:01:38,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2025-03-17 15:01:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.0052083333333333) internal successors, (193), 192 states have internal predecessors, (193), 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) [2025-03-17 15:01:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 193 transitions. [2025-03-17 15:01:38,774 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 193 transitions. Word has length 96 [2025-03-17 15:01:38,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:38,774 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 193 transitions. [2025-03-17 15:01:38,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 3.0425531914893615) internal successors, (286), 95 states have internal predecessors, (286), 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) [2025-03-17 15:01:38,775 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 193 transitions. [2025-03-17 15:01:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2025-03-17 15:01:38,777 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:38,777 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 1, 1, 1] [2025-03-17 15:01:38,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 15:01:38,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-17 15:01:38,978 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:38,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:38,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1283416355, now seen corresponding path program 5 times [2025-03-17 15:01:38,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:38,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740498520] [2025-03-17 15:01:38,979 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:01:38,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:38,990 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 192 statements into 32 equivalence classes. [2025-03-17 15:01:39,069 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 192 of 192 statements. [2025-03-17 15:01:39,069 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-03-17 15:01:39,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:41,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:41,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:01:41,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740498520] [2025-03-17 15:01:41,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740498520] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:01:41,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024687610] [2025-03-17 15:01:41,519 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:01:41,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:01:41,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:01:41,520 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:01:41,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:01:41,551 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 192 statements into 32 equivalence classes. [2025-03-17 15:01:41,620 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) and asserted 192 of 192 statements. [2025-03-17 15:01:41,620 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2025-03-17 15:01:41,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:01:41,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-03-17 15:01:41,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:01:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:44,623 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:01:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2914 backedges. 0 proven. 2914 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:01:48,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024687610] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:01:48,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:01:48,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2025-03-17 15:01:48,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246756914] [2025-03-17 15:01:48,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:01:48,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2025-03-17 15:01:48,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:01:48,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2025-03-17 15:01:48,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4412, Invalid=31878, Unknown=0, NotChecked=0, Total=36290 [2025-03-17 15:01:48,118 INFO L87 Difference]: Start difference. First operand 193 states and 193 transitions. Second operand has 191 states, 190 states have (on average 3.0210526315789474) internal successors, (574), 191 states have internal predecessors, (574), 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) [2025-03-17 15:01:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:01:56,062 INFO L93 Difference]: Finished difference Result 386 states and 417 transitions. [2025-03-17 15:01:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2025-03-17 15:01:56,062 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 3.0210526315789474) internal successors, (574), 191 states have internal predecessors, (574), 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 192 [2025-03-17 15:01:56,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:01:56,064 INFO L225 Difference]: With dead ends: 386 [2025-03-17 15:01:56,064 INFO L226 Difference]: Without dead ends: 385 [2025-03-17 15:01:56,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17300 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=8282, Invalid=54468, Unknown=0, NotChecked=0, Total=62750 [2025-03-17 15:01:56,067 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:01:56,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 255 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:01:56,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2025-03-17 15:01:56,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2025-03-17 15:01:56,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.0026041666666667) internal successors, (385), 384 states have internal predecessors, (385), 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) [2025-03-17 15:01:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 385 transitions. [2025-03-17 15:01:56,083 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 385 transitions. Word has length 192 [2025-03-17 15:01:56,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:01:56,084 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 385 transitions. [2025-03-17 15:01:56,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 3.0210526315789474) internal successors, (574), 191 states have internal predecessors, (574), 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) [2025-03-17 15:01:56,084 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 385 transitions. [2025-03-17 15:01:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2025-03-17 15:01:56,087 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:01:56,088 INFO L218 NwaCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 1, 1, 1] [2025-03-17 15:01:56,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 15:01:56,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-17 15:01:56,288 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-17 15:01:56,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:01:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash -999633821, now seen corresponding path program 6 times [2025-03-17 15:01:56,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:01:56,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333863875] [2025-03-17 15:01:56,289 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:01:56,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:01:56,299 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 384 statements into 64 equivalence classes. [2025-03-17 15:01:56,496 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) and asserted 384 of 384 statements. [2025-03-17 15:01:56,496 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2025-03-17 15:01:56,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:02:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:02:05,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:02:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333863875] [2025-03-17 15:02:05,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333863875] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:02:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706107866] [2025-03-17 15:02:05,565 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:02:05,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:02:05,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:02:05,568 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:02:05,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:02:05,615 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 384 statements into 64 equivalence classes. [2025-03-17 15:02:05,928 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) and asserted 384 of 384 statements. [2025-03-17 15:02:05,928 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2025-03-17 15:02:05,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:02:05,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 192 conjuncts are in the unsatisfiable core [2025-03-17 15:02:05,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:02:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:02:17,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:02:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 11970 backedges. 0 proven. 11970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:02:30,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706107866] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:02:30,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:02:30,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2025-03-17 15:02:30,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483633979] [2025-03-17 15:02:30,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:02:30,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2025-03-17 15:02:30,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:02:30,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2025-03-17 15:02:30,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17020, Invalid=129286, Unknown=0, NotChecked=0, Total=146306 [2025-03-17 15:02:30,768 INFO L87 Difference]: Start difference. First operand 385 states and 385 transitions. Second operand has 383 states, 382 states have (on average 3.0104712041884816) internal successors, (1150), 383 states have internal predecessors, (1150), 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)