./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-nla/sqrt1-both-nt.c --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/termination-nla/sqrt1-both-nt.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f0ebd3c2c18d79b7b5cf15d06200769549c28f6b620b0cc174ddc702d0db6da --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:53:45,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:53:45,643 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 14:53:45,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:53:45,648 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:53:45,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:53:45,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:53:45,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:53:45,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:53:45,661 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:53:45,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:53:45,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:53:45,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:53:45,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:53:45,662 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:53:45,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:53:45,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 14:53:45,662 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 14:53:45,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:53:45,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:53:45,663 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:53:45,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:53:45,663 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 14:53:45,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 14:53:45,664 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:53:45,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:53:45,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:53:45,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:53:45,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:53:45,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:53:45,664 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 -> 2f0ebd3c2c18d79b7b5cf15d06200769549c28f6b620b0cc174ddc702d0db6da [2025-03-17 14:53:45,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:53:45,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:53:45,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:53:45,876 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:53:45,876 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:53:45,878 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/sqrt1-both-nt.c [2025-03-17 14:53:47,040 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaf6006e/4612664c751e4e3d8125a55cbc6b4906/FLAG14ad9cee3 [2025-03-17 14:53:47,233 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:53:47,235 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/sqrt1-both-nt.c [2025-03-17 14:53:47,240 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaf6006e/4612664c751e4e3d8125a55cbc6b4906/FLAG14ad9cee3 [2025-03-17 14:53:47,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efaf6006e/4612664c751e4e3d8125a55cbc6b4906 [2025-03-17 14:53:47,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:53:47,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:53:47,268 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:53:47,268 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:53:47,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:53:47,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8e48f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47, skipping insertion in model container [2025-03-17 14:53:47,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:53:47,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:53:47,391 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:53:47,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:53:47,410 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:53:47,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47 WrapperNode [2025-03-17 14:53:47,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:53:47,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:53:47,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:53:47,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:53:47,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,430 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2025-03-17 14:53:47,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:53:47,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:53:47,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:53:47,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:53:47,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,439 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,442 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 14:53:47,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,447 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:53:47,450 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:53:47,451 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:53:47,451 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:53:47,452 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (1/1) ... [2025-03-17 14:53:47,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:53:47,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:47,479 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 14:53:47,483 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 14:53:47,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:53:47,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:53:47,540 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:53:47,542 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:53:47,693 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-03-17 14:53:47,694 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:53:47,700 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:53:47,701 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:53:47,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:53:47 BoogieIcfgContainer [2025-03-17 14:53:47,702 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:53:47,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:53:47,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:53:47,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:53:47,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:53:47" (1/3) ... [2025-03-17 14:53:47,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3794c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:53:47, skipping insertion in model container [2025-03-17 14:53:47,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:53:47" (2/3) ... [2025-03-17 14:53:47,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a3794c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:53:47, skipping insertion in model container [2025-03-17 14:53:47,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:53:47" (3/3) ... [2025-03-17 14:53:47,709 INFO L128 eAbstractionObserver]: Analyzing ICFG sqrt1-both-nt.c [2025-03-17 14:53:47,721 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:53:47,722 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sqrt1-both-nt.c that has 1 procedures, 41 locations, 1 initial locations, 1 loop locations, and 18 error locations. [2025-03-17 14:53:47,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:53:47,766 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;@3249ff1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:53:47,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-17 14:53:47,770 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 40 states have internal predecessors, (42), 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 14:53:47,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-03-17 14:53:47,773 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:47,773 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-03-17 14:53:47,774 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:47,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:47,779 INFO L85 PathProgramCache]: Analyzing trace with hash 2239, now seen corresponding path program 1 times [2025-03-17 14:53:47,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:47,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099070460] [2025-03-17 14:53:47,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:47,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:47,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-17 14:53:47,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-17 14:53:47,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:47,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:47,853 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 14:53:47,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:47,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099070460] [2025-03-17 14:53:47,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099070460] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:47,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:47,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:53:47,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400370407] [2025-03-17 14:53:47,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:47,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 14:53:47,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:47,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 14:53:47,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 14:53:47,869 INFO L87 Difference]: Start difference. First operand has 41 states, 22 states have (on average 1.9090909090909092) internal successors, (42), 40 states have internal predecessors, (42), 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 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:53:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:47,879 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2025-03-17 14:53:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 14:53:47,881 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2025-03-17 14:53:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:47,885 INFO L225 Difference]: With dead ends: 44 [2025-03-17 14:53:47,885 INFO L226 Difference]: Without dead ends: 37 [2025-03-17 14:53:47,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 14:53:47,890 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:47,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:47,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-17 14:53:47,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-03-17 14:53:47,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 20 states have (on average 1.85) internal successors, (37), 36 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 14:53:47,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2025-03-17 14:53:47,912 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 2 [2025-03-17 14:53:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:47,912 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2025-03-17 14:53:47,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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 14:53:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2025-03-17 14:53:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 14:53:47,913 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:47,913 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 14:53:47,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:53:47,914 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:47,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:47,914 INFO L85 PathProgramCache]: Analyzing trace with hash 69414, now seen corresponding path program 1 times [2025-03-17 14:53:47,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:47,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562473434] [2025-03-17 14:53:47,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:47,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:47,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 14:53:47,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 14:53:47,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:47,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:53:47,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852757317] [2025-03-17 14:53:47,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:47,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:47,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:47,925 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 14:53:47,926 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 14:53:47,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 14:53:47,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 14:53:47,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:47,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:47,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 14:53:47,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:47,965 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 14:53:47,965 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:53:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:47,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562473434] [2025-03-17 14:53:47,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:53:47,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852757317] [2025-03-17 14:53:47,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852757317] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:47,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:47,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:53:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276477423] [2025-03-17 14:53:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:47,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:53:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:47,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:53:47,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:53:47,967 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14:53:48,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:48,040 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2025-03-17 14:53:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:53:48,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2025-03-17 14:53:48,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:48,041 INFO L225 Difference]: With dead ends: 63 [2025-03-17 14:53:48,041 INFO L226 Difference]: Without dead ends: 58 [2025-03-17 14:53:48,041 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 14:53:48,041 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 19 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:48,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:53:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-03-17 14:53:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2025-03-17 14:53:48,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 53 states have internal predecessors, (64), 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 14:53:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2025-03-17 14:53:48,045 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 3 [2025-03-17 14:53:48,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:48,046 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2025-03-17 14:53:48,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14:53:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2025-03-17 14:53:48,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 14:53:48,046 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:48,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 14:53:48,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 14:53:48,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:48,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:48,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:48,248 INFO L85 PathProgramCache]: Analyzing trace with hash 2151837, now seen corresponding path program 1 times [2025-03-17 14:53:48,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:48,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114225372] [2025-03-17 14:53:48,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:48,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:48,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 14:53:48,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 14:53:48,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:48,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:48,276 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 14:53:48,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:48,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114225372] [2025-03-17 14:53:48,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114225372] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:48,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:48,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:53:48,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043909292] [2025-03-17 14:53:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:48,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:53:48,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:48,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:53:48,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:53:48,277 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 14:53:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:48,328 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2025-03-17 14:53:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:53:48,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2025-03-17 14:53:48,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:48,329 INFO L225 Difference]: With dead ends: 59 [2025-03-17 14:53:48,329 INFO L226 Difference]: Without dead ends: 58 [2025-03-17 14:53:48,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 14:53:48,330 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:48,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 32 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:48,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-03-17 14:53:48,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2025-03-17 14:53:48,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 53 states have internal predecessors, (63), 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 14:53:48,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2025-03-17 14:53:48,336 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 4 [2025-03-17 14:53:48,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:48,337 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2025-03-17 14:53:48,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 14:53:48,337 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2025-03-17 14:53:48,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 14:53:48,337 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:48,338 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 14:53:48,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:53:48,338 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:48,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:48,338 INFO L85 PathProgramCache]: Analyzing trace with hash 66706948, now seen corresponding path program 1 times [2025-03-17 14:53:48,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:48,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151949829] [2025-03-17 14:53:48,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:48,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:48,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 14:53:48,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 14:53:48,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:48,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:48,356 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 14:53:48,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:48,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151949829] [2025-03-17 14:53:48,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151949829] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:48,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:48,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:53:48,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109915683] [2025-03-17 14:53:48,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:48,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:53:48,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:48,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:53:48,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:53:48,358 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:53:48,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:48,399 INFO L93 Difference]: Finished difference Result 62 states and 67 transitions. [2025-03-17 14:53:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:53:48,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:53:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:48,400 INFO L225 Difference]: With dead ends: 62 [2025-03-17 14:53:48,400 INFO L226 Difference]: Without dead ends: 58 [2025-03-17 14:53:48,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 14:53:48,401 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:48,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-03-17 14:53:48,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2025-03-17 14:53:48,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 53 states have internal predecessors, (59), 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 14:53:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2025-03-17 14:53:48,405 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 5 [2025-03-17 14:53:48,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:48,405 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2025-03-17 14:53:48,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 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 14:53:48,405 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2025-03-17 14:53:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 14:53:48,406 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:48,406 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:48,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:53:48,406 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:48,407 INFO L85 PathProgramCache]: Analyzing trace with hash -319132446, now seen corresponding path program 1 times [2025-03-17 14:53:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:48,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167016466] [2025-03-17 14:53:48,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:48,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 14:53:48,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 14:53:48,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:48,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:48,449 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 14:53:48,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:48,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167016466] [2025-03-17 14:53:48,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167016466] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:48,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:48,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:53:48,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190008601] [2025-03-17 14:53:48,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:48,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:53:48,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:48,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:53:48,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:53:48,451 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:53:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:48,531 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2025-03-17 14:53:48,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:53:48,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-03-17 14:53:48,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:48,532 INFO L225 Difference]: With dead ends: 59 [2025-03-17 14:53:48,532 INFO L226 Difference]: Without dead ends: 58 [2025-03-17 14:53:48,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:53:48,533 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:48,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 35 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:53:48,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2025-03-17 14:53:48,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2025-03-17 14:53:48,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 53 states have internal predecessors, (58), 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 14:53:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2025-03-17 14:53:48,538 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 7 [2025-03-17 14:53:48,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:48,538 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2025-03-17 14:53:48,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:53:48,538 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2025-03-17 14:53:48,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 14:53:48,538 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:48,538 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:48,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:53:48,538 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:48,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:48,539 INFO L85 PathProgramCache]: Analyzing trace with hash -564999522, now seen corresponding path program 1 times [2025-03-17 14:53:48,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:48,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592328500] [2025-03-17 14:53:48,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:48,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:48,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 14:53:48,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 14:53:48,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:48,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:48,610 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 14:53:48,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:48,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592328500] [2025-03-17 14:53:48,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592328500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:48,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:48,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:53:48,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514229445] [2025-03-17 14:53:48,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:48,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:53:48,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:48,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:53:48,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:53:48,612 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:53:52,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 14:53:52,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:52,744 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2025-03-17 14:53:52,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:53:52,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:53:52,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:52,745 INFO L225 Difference]: With dead ends: 56 [2025-03-17 14:53:52,745 INFO L226 Difference]: Without dead ends: 54 [2025-03-17 14:53:52,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:53:52,746 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:52,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 20 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-03-17 14:53:52,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-03-17 14:53:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-03-17 14:53:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.5135135135135136) internal successors, (56), 53 states have internal predecessors, (56), 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 14:53:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2025-03-17 14:53:52,750 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 11 [2025-03-17 14:53:52,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:52,750 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2025-03-17 14:53:52,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 14:53:52,750 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2025-03-17 14:53:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-17 14:53:52,750 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:52,750 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:52,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:53:52,751 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:52,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1937102758, now seen corresponding path program 1 times [2025-03-17 14:53:52,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:52,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229337146] [2025-03-17 14:53:52,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:52,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:52,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 14:53:52,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 14:53:52,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:52,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:52,775 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 14:53:52,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:52,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229337146] [2025-03-17 14:53:52,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229337146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:52,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:52,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:53:52,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558836012] [2025-03-17 14:53:52,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:52,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:53:52,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:52,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:53:52,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:53:52,778 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 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 14:53:52,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:52,785 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2025-03-17 14:53:52,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:53:52,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 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) Word has length 15 [2025-03-17 14:53:52,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:52,786 INFO L225 Difference]: With dead ends: 54 [2025-03-17 14:53:52,786 INFO L226 Difference]: Without dead ends: 53 [2025-03-17 14:53:52,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 14:53:52,787 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:52,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 33 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:52,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2025-03-17 14:53:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2025-03-17 14:53:52,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 52 states have internal predecessors, (54), 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 14:53:52,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2025-03-17 14:53:52,791 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 15 [2025-03-17 14:53:52,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:52,791 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2025-03-17 14:53:52,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 2 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 14:53:52,791 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2025-03-17 14:53:52,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-17 14:53:52,792 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:52,792 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:52,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 14:53:52,792 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:52,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:52,792 INFO L85 PathProgramCache]: Analyzing trace with hash 79356625, now seen corresponding path program 1 times [2025-03-17 14:53:52,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:52,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093420462] [2025-03-17 14:53:52,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:52,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:52,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 14:53:52,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 14:53:52,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:52,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:52,823 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 14:53:52,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:52,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093420462] [2025-03-17 14:53:52,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093420462] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:52,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:52,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 14:53:52,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147766086] [2025-03-17 14:53:52,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:52,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:53:52,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:52,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:53:52,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:53:52,825 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 2 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 14:53:52,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:52,832 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2025-03-17 14:53:52,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:53:52,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 2 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) Word has length 16 [2025-03-17 14:53:52,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:52,835 INFO L225 Difference]: With dead ends: 54 [2025-03-17 14:53:52,835 INFO L226 Difference]: Without dead ends: 53 [2025-03-17 14:53:52,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 14:53:52,836 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:52,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2025-03-17 14:53:52,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2025-03-17 14:53:52,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 52 states have internal predecessors, (53), 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 14:53:52,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2025-03-17 14:53:52,841 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 16 [2025-03-17 14:53:52,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:52,841 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2025-03-17 14:53:52,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 2 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 14:53:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2025-03-17 14:53:52,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-17 14:53:52,844 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:52,844 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:52,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 14:53:52,844 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:52,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:52,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1881179670, now seen corresponding path program 1 times [2025-03-17 14:53:52,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:52,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110283858] [2025-03-17 14:53:52,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:52,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:52,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 14:53:52,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 14:53:52,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:52,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:52,896 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 14:53:52,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:52,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110283858] [2025-03-17 14:53:52,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110283858] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:52,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:52,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:53:52,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733412190] [2025-03-17 14:53:52,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:52,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:53:52,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:52,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:53:52,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:53:52,898 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 14:53:52,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:52,967 INFO L93 Difference]: Finished difference Result 56 states and 57 transitions. [2025-03-17 14:53:52,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:53:52,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2025-03-17 14:53:52,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:52,968 INFO L225 Difference]: With dead ends: 56 [2025-03-17 14:53:52,968 INFO L226 Difference]: Without dead ends: 55 [2025-03-17 14:53:52,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:53:52,969 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:52,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 24 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:53:52,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-03-17 14:53:52,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2025-03-17 14:53:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 53 states have internal predecessors, (54), 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 14:53:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2025-03-17 14:53:52,978 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 19 [2025-03-17 14:53:52,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:52,978 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2025-03-17 14:53:52,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 14:53:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2025-03-17 14:53:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-17 14:53:52,979 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:52,979 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:52,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 14:53:52,979 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:52,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:52,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1812972403, now seen corresponding path program 1 times [2025-03-17 14:53:52,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:52,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688529361] [2025-03-17 14:53:52,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:52,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:52,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 14:53:52,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 14:53:52,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:52,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:53,025 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 14:53:53,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:53,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688529361] [2025-03-17 14:53:53,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688529361] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:53,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:53,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:53:53,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353736953] [2025-03-17 14:53:53,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:53,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:53:53,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:53,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:53:53,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:53:53,026 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 14:53:53,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:53,077 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2025-03-17 14:53:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:53:53,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2025-03-17 14:53:53,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:53,078 INFO L225 Difference]: With dead ends: 56 [2025-03-17 14:53:53,078 INFO L226 Difference]: Without dead ends: 55 [2025-03-17 14:53:53,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:53:53,079 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:53,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:53,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-03-17 14:53:53,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2025-03-17 14:53:53,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 54 states have internal predecessors, (55), 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 14:53:53,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2025-03-17 14:53:53,083 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 20 [2025-03-17 14:53:53,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:53,083 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2025-03-17 14:53:53,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 14:53:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2025-03-17 14:53:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 14:53:53,083 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:53,084 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:53,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 14:53:53,084 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:53,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:53,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1490243115, now seen corresponding path program 1 times [2025-03-17 14:53:53,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:53,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314131215] [2025-03-17 14:53:53,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:53,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:53,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:53:53,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:53:53,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:53,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:53:53,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811960418] [2025-03-17 14:53:53,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:53,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:53,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:53,097 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 14:53:53,099 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 14:53:53,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:53:53,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:53:53,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:53,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:53,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:53:53,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:53,169 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:53,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:53,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314131215] [2025-03-17 14:53:53,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:53:53,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811960418] [2025-03-17 14:53:53,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811960418] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:53,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 14:53:53,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2025-03-17 14:53:53,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006266873] [2025-03-17 14:53:53,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:53,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:53:53,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:53,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:53:53,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:53:53,235 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 14:53:53,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:53,356 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2025-03-17 14:53:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:53:53,356 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 22 [2025-03-17 14:53:53,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:53,357 INFO L225 Difference]: With dead ends: 102 [2025-03-17 14:53:53,357 INFO L226 Difference]: Without dead ends: 97 [2025-03-17 14:53:53,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:53:53,357 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 59 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:53,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 34 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:53:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-03-17 14:53:53,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 91. [2025-03-17 14:53:53,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.4303797468354431) internal successors, (113), 90 states have internal predecessors, (113), 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 14:53:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 113 transitions. [2025-03-17 14:53:53,364 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 113 transitions. Word has length 22 [2025-03-17 14:53:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:53,364 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 113 transitions. [2025-03-17 14:53:53,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 14:53:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 113 transitions. [2025-03-17 14:53:53,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-17 14:53:53,364 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:53,365 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:53,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 14:53:53,565 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,SelfDestructingSolverStorable10 [2025-03-17 14:53:53,565 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:53,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:53,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1047103688, now seen corresponding path program 1 times [2025-03-17 14:53:53,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:53,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698814830] [2025-03-17 14:53:53,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:53,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:53,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 14:53:53,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 14:53:53,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:53,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:53,604 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 14:53:53,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698814830] [2025-03-17 14:53:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698814830] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813850027] [2025-03-17 14:53:53,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:53,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:53,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:53,606 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 14:53:53,609 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 14:53:53,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 14:53:53,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 14:53:53,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:53,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:53,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:53:53,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:53,733 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 14:53:53,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:53,781 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 14:53:53,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813850027] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:53,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:53:53,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2025-03-17 14:53:53,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998871551] [2025-03-17 14:53:53,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:53,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:53:53,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:53,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:53:53,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:53:53,783 INFO L87 Difference]: Start difference. First operand 91 states and 113 transitions. Second operand has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 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 14:53:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:53,880 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2025-03-17 14:53:53,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:53:53,881 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 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 14:53:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:53,881 INFO L225 Difference]: With dead ends: 91 [2025-03-17 14:53:53,883 INFO L226 Difference]: Without dead ends: 89 [2025-03-17 14:53:53,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-17 14:53:53,883 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:53,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:53:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-17 14:53:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2025-03-17 14:53:53,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 88 states have internal predecessors, (107), 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 14:53:53,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 107 transitions. [2025-03-17 14:53:53,891 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 107 transitions. Word has length 23 [2025-03-17 14:53:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:53,892 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 107 transitions. [2025-03-17 14:53:53,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 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 14:53:53,892 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 107 transitions. [2025-03-17 14:53:53,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-17 14:53:53,892 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:53,892 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:53,898 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 14:53:54,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:54,093 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:54,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1899524041, now seen corresponding path program 1 times [2025-03-17 14:53:54,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:54,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876403494] [2025-03-17 14:53:54,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:54,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:54,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-17 14:53:54,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 14:53:54,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:54,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:54,133 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 14:53:54,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:54,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876403494] [2025-03-17 14:53:54,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876403494] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:54,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159675787] [2025-03-17 14:53:54,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:54,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:54,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:54,135 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 14:53:54,138 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 14:53:54,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-17 14:53:54,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-17 14:53:54,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:54,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:54,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:53:54,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:54,231 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 14:53:54,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:54,282 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 14:53:54,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159675787] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:54,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:53:54,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2025-03-17 14:53:54,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284504934] [2025-03-17 14:53:54,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:54,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:53:54,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:54,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:53:54,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:53:54,284 INFO L87 Difference]: Start difference. First operand 89 states and 107 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 14:53:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:54,378 INFO L93 Difference]: Finished difference Result 92 states and 107 transitions. [2025-03-17 14:53:54,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:53:54,378 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 14:53:54,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:54,379 INFO L225 Difference]: With dead ends: 92 [2025-03-17 14:53:54,379 INFO L226 Difference]: Without dead ends: 87 [2025-03-17 14:53:54,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:53:54,380 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 34 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:54,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 25 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:53:54,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2025-03-17 14:53:54,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2025-03-17 14:53:54,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 85 states have internal predecessors, (95), 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 14:53:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2025-03-17 14:53:54,384 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 24 [2025-03-17 14:53:54,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:54,384 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2025-03-17 14:53:54,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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 14:53:54,384 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2025-03-17 14:53:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-17 14:53:54,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:54,384 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:54,391 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 14:53:54,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:54,585 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:54,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:54,586 INFO L85 PathProgramCache]: Analyzing trace with hash 81502567, now seen corresponding path program 1 times [2025-03-17 14:53:54,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:54,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479911487] [2025-03-17 14:53:54,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:54,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:54,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 14:53:54,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 14:53:54,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:54,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:54,636 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 14:53:54,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:54,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479911487] [2025-03-17 14:53:54,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479911487] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:54,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61598816] [2025-03-17 14:53:54,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:54,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:54,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:54,639 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 14:53:54,639 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 14:53:54,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 14:53:54,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 14:53:54,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:54,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:54,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:53:54,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:54,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:54,813 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:53:54,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61598816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:54,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:53:54,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2025-03-17 14:53:54,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417583039] [2025-03-17 14:53:54,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:54,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:53:54,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:54,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:53:54,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:53:54,814 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 14:53:54,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:54,871 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2025-03-17 14:53:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:53:54,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2025-03-17 14:53:54,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:54,871 INFO L225 Difference]: With dead ends: 86 [2025-03-17 14:53:54,871 INFO L226 Difference]: Without dead ends: 83 [2025-03-17 14:53:54,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:53:54,872 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:54,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:53:54,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-17 14:53:54,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2025-03-17 14:53:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.0886075949367089) internal successors, (86), 82 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 14:53:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 86 transitions. [2025-03-17 14:53:54,877 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 86 transitions. Word has length 26 [2025-03-17 14:53:54,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:54,878 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 86 transitions. [2025-03-17 14:53:54,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 14:53:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 86 transitions. [2025-03-17 14:53:54,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-17 14:53:54,878 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:54,878 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:53:54,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 14:53:55,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 14:53:55,079 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:55,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:55,080 INFO L85 PathProgramCache]: Analyzing trace with hash 253490156, now seen corresponding path program 1 times [2025-03-17 14:53:55,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766573978] [2025-03-17 14:53:55,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:55,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:55,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 14:53:55,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 14:53:55,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:55,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:55,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:55,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766573978] [2025-03-17 14:53:55,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766573978] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:55,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364934651] [2025-03-17 14:53:55,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:55,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:55,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:55,120 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 14:53:55,123 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 14:53:55,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 14:53:55,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 14:53:55,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:55,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:55,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 14:53:55,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:55,186 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:55,235 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:55,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364934651] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:55,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:53:55,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-03-17 14:53:55,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651158779] [2025-03-17 14:53:55,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:55,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:53:55,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:55,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:53:55,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:53:55,236 INFO L87 Difference]: Start difference. First operand 83 states and 86 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 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 14:53:55,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:55,252 INFO L93 Difference]: Finished difference Result 99 states and 101 transitions. [2025-03-17 14:53:55,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:53:55,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 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 35 [2025-03-17 14:53:55,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:55,253 INFO L225 Difference]: With dead ends: 99 [2025-03-17 14:53:55,253 INFO L226 Difference]: Without dead ends: 98 [2025-03-17 14:53:55,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:53:55,254 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:55,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 96 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:55,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-03-17 14:53:55,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2025-03-17 14:53:55,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.065217391304348) internal successors, (98), 95 states have internal predecessors, (98), 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 14:53:55,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 98 transitions. [2025-03-17 14:53:55,259 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 98 transitions. Word has length 35 [2025-03-17 14:53:55,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:55,259 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 98 transitions. [2025-03-17 14:53:55,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 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 14:53:55,259 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 98 transitions. [2025-03-17 14:53:55,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-03-17 14:53:55,262 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:55,262 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2025-03-17 14:53:55,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 14:53:55,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 14:53:55,463 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:55,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash -33347411, now seen corresponding path program 1 times [2025-03-17 14:53:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540796687] [2025-03-17 14:53:55,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:55,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:55,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-17 14:53:55,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-17 14:53:55,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:55,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:55,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:55,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540796687] [2025-03-17 14:53:55,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540796687] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:55,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069223922] [2025-03-17 14:53:55,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:53:55,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:55,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:55,567 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 14:53:55,569 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 14:53:55,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-17 14:53:55,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-17 14:53:55,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:53:55,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:55,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:53:55,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:55,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:55,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069223922] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:55,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:53:55,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 18 [2025-03-17 14:53:55,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254298782] [2025-03-17 14:53:55,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:55,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-17 14:53:55,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:55,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-17 14:53:55,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2025-03-17 14:53:55,932 INFO L87 Difference]: Start difference. First operand 96 states and 98 transitions. Second operand has 20 states, 19 states have (on average 9.157894736842104) internal successors, (174), 19 states have internal predecessors, (174), 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 14:53:56,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:56,192 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2025-03-17 14:53:56,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 14:53:56,192 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.157894736842104) internal successors, (174), 19 states have internal predecessors, (174), 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 58 [2025-03-17 14:53:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:56,193 INFO L225 Difference]: With dead ends: 141 [2025-03-17 14:53:56,194 INFO L226 Difference]: Without dead ends: 140 [2025-03-17 14:53:56,194 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=242, Invalid=460, Unknown=0, NotChecked=0, Total=702 [2025-03-17 14:53:56,194 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:56,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 38 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:53:56,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2025-03-17 14:53:56,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2025-03-17 14:53:56,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 134 states have (on average 1.0820895522388059) internal successors, (145), 137 states have internal predecessors, (145), 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 14:53:56,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 145 transitions. [2025-03-17 14:53:56,199 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 145 transitions. Word has length 58 [2025-03-17 14:53:56,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:56,199 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 145 transitions. [2025-03-17 14:53:56,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.157894736842104) internal successors, (174), 19 states have internal predecessors, (174), 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 14:53:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 145 transitions. [2025-03-17 14:53:56,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-17 14:53:56,199 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:56,200 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2025-03-17 14:53:56,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 14:53:56,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:56,400 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:56,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:56,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2118628375, now seen corresponding path program 2 times [2025-03-17 14:53:56,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:56,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554788984] [2025-03-17 14:53:56,401 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:53:56,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:56,406 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-03-17 14:53:56,415 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-03-17 14:53:56,415 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:53:56,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:56,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:56,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554788984] [2025-03-17 14:53:56,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554788984] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:56,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035777987] [2025-03-17 14:53:56,530 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:53:56,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:56,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:56,532 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 14:53:56,534 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 14:53:56,552 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 62 statements into 2 equivalence classes. [2025-03-17 14:53:56,565 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 62 of 62 statements. [2025-03-17 14:53:56,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:53:56,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:56,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 14:53:56,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:56,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:56,905 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:56,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035777987] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:56,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:53:56,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2025-03-17 14:53:56,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054421904] [2025-03-17 14:53:56,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:56,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 14:53:56,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:56,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 14:53:56,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2025-03-17 14:53:56,907 INFO L87 Difference]: Start difference. First operand 138 states and 145 transitions. Second operand has 22 states, 21 states have (on average 8.666666666666666) internal successors, (182), 21 states have internal predecessors, (182), 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 14:53:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:57,207 INFO L93 Difference]: Finished difference Result 146 states and 151 transitions. [2025-03-17 14:53:57,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-17 14:53:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 8.666666666666666) internal successors, (182), 21 states have internal predecessors, (182), 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 62 [2025-03-17 14:53:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:57,208 INFO L225 Difference]: With dead ends: 146 [2025-03-17 14:53:57,208 INFO L226 Difference]: Without dead ends: 145 [2025-03-17 14:53:57,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=309, Invalid=621, Unknown=0, NotChecked=0, Total=930 [2025-03-17 14:53:57,209 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 76 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:57,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 43 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:53:57,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-03-17 14:53:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2025-03-17 14:53:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.065217391304348) internal successors, (147), 141 states have internal predecessors, (147), 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 14:53:57,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 147 transitions. [2025-03-17 14:53:57,214 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 147 transitions. Word has length 62 [2025-03-17 14:53:57,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:57,214 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 147 transitions. [2025-03-17 14:53:57,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 8.666666666666666) internal successors, (182), 21 states have internal predecessors, (182), 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 14:53:57,214 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 147 transitions. [2025-03-17 14:53:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-17 14:53:57,214 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:57,214 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2025-03-17 14:53:57,220 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 14:53:57,415 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,SelfDestructingSolverStorable16 [2025-03-17 14:53:57,415 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:57,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:57,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1117505254, now seen corresponding path program 2 times [2025-03-17 14:53:57,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:57,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034822041] [2025-03-17 14:53:57,416 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:53:57,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:57,420 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-03-17 14:53:57,425 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 14:53:57,425 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:53:57,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:53:57,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [208738573] [2025-03-17 14:53:57,426 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:53:57,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:57,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:57,428 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 14:53:57,429 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 14:53:57,448 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-03-17 14:53:57,460 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 14:53:57,460 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:53:57,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:57,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 14:53:57,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:57,548 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:57,548 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:57,699 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:57,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:57,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034822041] [2025-03-17 14:53:57,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:53:57,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208738573] [2025-03-17 14:53:57,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208738573] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:57,700 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 14:53:57,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 10 [2025-03-17 14:53:57,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177246577] [2025-03-17 14:53:57,700 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:57,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 14:53:57,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:57,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 14:53:57,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:53:57,701 INFO L87 Difference]: Start difference. First operand 142 states and 147 transitions. Second operand has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 11 states have internal predecessors, (158), 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 14:53:58,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:58,020 INFO L93 Difference]: Finished difference Result 205 states and 213 transitions. [2025-03-17 14:53:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 14:53:58,021 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 11 states have internal predecessors, (158), 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 79 [2025-03-17 14:53:58,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:58,022 INFO L225 Difference]: With dead ends: 205 [2025-03-17 14:53:58,022 INFO L226 Difference]: Without dead ends: 204 [2025-03-17 14:53:58,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2025-03-17 14:53:58,022 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 132 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:58,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 133 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:53:58,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-03-17 14:53:58,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 197. [2025-03-17 14:53:58,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.072538860103627) internal successors, (207), 196 states have internal predecessors, (207), 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 14:53:58,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 207 transitions. [2025-03-17 14:53:58,028 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 207 transitions. Word has length 79 [2025-03-17 14:53:58,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:58,029 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 207 transitions. [2025-03-17 14:53:58,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.363636363636363) internal successors, (158), 11 states have internal predecessors, (158), 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 14:53:58,029 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 207 transitions. [2025-03-17 14:53:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-17 14:53:58,029 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:58,030 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1] [2025-03-17 14:53:58,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 14:53:58,230 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,SelfDestructingSolverStorable17 [2025-03-17 14:53:58,231 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:58,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:58,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1037615889, now seen corresponding path program 2 times [2025-03-17 14:53:58,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:58,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973321791] [2025-03-17 14:53:58,231 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:53:58,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:58,236 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 92 statements into 2 equivalence classes. [2025-03-17 14:53:58,246 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 14:53:58,248 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:53:58,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:58,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:58,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973321791] [2025-03-17 14:53:58,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973321791] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:58,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704756693] [2025-03-17 14:53:58,328 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:53:58,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:58,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:58,330 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 14:53:58,333 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 14:53:58,350 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 92 statements into 2 equivalence classes. [2025-03-17 14:53:58,363 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 14:53:58,363 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:53:58,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:58,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:53:58,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:53:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:58,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:53:58,581 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:58,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704756693] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:53:58,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:53:58,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 14:53:58,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322810584] [2025-03-17 14:53:58,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:53:58,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 14:53:58,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:58,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 14:53:58,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:53:58,583 INFO L87 Difference]: Start difference. First operand 197 states and 207 transitions. Second operand has 12 states, 11 states have (on average 16.727272727272727) internal successors, (184), 11 states have internal predecessors, (184), 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 14:53:58,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:58,617 INFO L93 Difference]: Finished difference Result 217 states and 222 transitions. [2025-03-17 14:53:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 14:53:58,617 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.727272727272727) internal successors, (184), 11 states have internal predecessors, (184), 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 92 [2025-03-17 14:53:58,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:58,629 INFO L225 Difference]: With dead ends: 217 [2025-03-17 14:53:58,629 INFO L226 Difference]: Without dead ends: 216 [2025-03-17 14:53:58,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:53:58,630 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:58,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 204 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:58,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2025-03-17 14:53:58,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 210. [2025-03-17 14:53:58,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.0485436893203883) internal successors, (216), 209 states have internal predecessors, (216), 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 14:53:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 216 transitions. [2025-03-17 14:53:58,637 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 216 transitions. Word has length 92 [2025-03-17 14:53:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:58,637 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 216 transitions. [2025-03-17 14:53:58,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.727272727272727) internal successors, (184), 11 states have internal predecessors, (184), 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 14:53:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 216 transitions. [2025-03-17 14:53:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-17 14:53:58,638 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:58,638 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2025-03-17 14:53:58,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 14:53:58,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:58,839 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:58,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:58,839 INFO L85 PathProgramCache]: Analyzing trace with hash 337950957, now seen corresponding path program 2 times [2025-03-17 14:53:58,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:58,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147685622] [2025-03-17 14:53:58,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:53:58,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:58,846 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-17 14:53:58,848 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 134 statements. [2025-03-17 14:53:58,848 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 14:53:58,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2025-03-17 14:53:58,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:58,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147685622] [2025-03-17 14:53:58,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147685622] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:53:58,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:53:58,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:53:58,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091364418] [2025-03-17 14:53:58,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:53:58,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:53:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:53:58,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:53:58,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:53:58,876 INFO L87 Difference]: Start difference. First operand 210 states and 216 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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 14:53:58,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:53:58,917 INFO L93 Difference]: Finished difference Result 210 states and 216 transitions. [2025-03-17 14:53:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:53:58,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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 134 [2025-03-17 14:53:58,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:53:58,918 INFO L225 Difference]: With dead ends: 210 [2025-03-17 14:53:58,918 INFO L226 Difference]: Without dead ends: 209 [2025-03-17 14:53:58,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:53:58,918 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:53:58,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 9 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:53:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2025-03-17 14:53:58,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2025-03-17 14:53:58,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 206 states have (on average 1.029126213592233) internal successors, (212), 208 states have internal predecessors, (212), 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 14:53:58,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 212 transitions. [2025-03-17 14:53:58,924 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 212 transitions. Word has length 134 [2025-03-17 14:53:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:53:58,924 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 212 transitions. [2025-03-17 14:53:58,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 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 14:53:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 212 transitions. [2025-03-17 14:53:58,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-03-17 14:53:58,925 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:53:58,925 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1] [2025-03-17 14:53:58,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 14:53:58,925 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:53:58,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:53:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1877492695, now seen corresponding path program 3 times [2025-03-17 14:53:58,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:53:58,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434462216] [2025-03-17 14:53:58,926 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:53:58,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:53:58,933 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 138 statements into 8 equivalence classes. [2025-03-17 14:53:58,969 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 138 of 138 statements. [2025-03-17 14:53:58,969 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 14:53:58,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 427 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:53:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:53:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434462216] [2025-03-17 14:53:59,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434462216] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:53:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984811860] [2025-03-17 14:53:59,279 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:53:59,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:53:59,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:53:59,281 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:53:59,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 14:53:59,301 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 138 statements into 8 equivalence classes. [2025-03-17 14:53:59,308 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 138 statements. [2025-03-17 14:53:59,308 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 14:53:59,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:53:59,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:53:59,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:54:01,631 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~t~0#1| Int)) (let ((.cse0 (* 2 |ULTIMATE.start_main_~t~0#1|))) (and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 2147483647) (= (mod (+ (* 3 |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 3 .cse0) 4) 0) (<= (+ (div (+ (- 1) (* (- 1) |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) .cse0) 4) |c_ULTIMATE.start_main_~s~0#1|) |ULTIMATE.start_main_~t~0#1|)))) is different from true [2025-03-17 14:54:01,655 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2025-03-17 14:54:01,655 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:54:01,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984811860] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:54:01,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:54:01,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 21 [2025-03-17 14:54:01,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352779625] [2025-03-17 14:54:01,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:54:01,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:54:01,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:54:01,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:54:01,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=372, Unknown=1, NotChecked=38, Total=462 [2025-03-17 14:54:01,656 INFO L87 Difference]: Start difference. First operand 209 states and 212 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 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 14:54:06,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:54:06,094 INFO L93 Difference]: Finished difference Result 209 states and 212 transitions. [2025-03-17 14:54:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:54:06,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 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 138 [2025-03-17 14:54:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:54:06,095 INFO L225 Difference]: With dead ends: 209 [2025-03-17 14:54:06,095 INFO L226 Difference]: Without dead ends: 208 [2025-03-17 14:54:06,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=67, Invalid=487, Unknown=2, NotChecked=44, Total=600 [2025-03-17 14:54:06,096 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 42 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:54:06,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 7 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 31 Unchecked, 0.1s Time] [2025-03-17 14:54:06,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2025-03-17 14:54:06,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2025-03-17 14:54:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 206 states have (on average 1.0097087378640777) internal successors, (208), 207 states have internal predecessors, (208), 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 14:54:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2025-03-17 14:54:06,107 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 138 [2025-03-17 14:54:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:54:06,107 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2025-03-17 14:54:06,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 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 14:54:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2025-03-17 14:54:06,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2025-03-17 14:54:06,109 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:54:06,109 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2025-03-17 14:54:06,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 14:54:06,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-03-17 14:54:06,311 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:54:06,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:54:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash 701894278, now seen corresponding path program 3 times [2025-03-17 14:54:06,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:54:06,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697946837] [2025-03-17 14:54:06,312 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:54:06,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:54:06,321 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 193 statements into 11 equivalence classes. [2025-03-17 14:54:06,357 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 193 of 193 statements. [2025-03-17 14:54:06,357 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:54:06,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:54:06,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [732511513] [2025-03-17 14:54:06,358 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:54:06,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:06,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:54:06,360 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:54:06,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 14:54:06,385 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 193 statements into 11 equivalence classes. [2025-03-17 14:54:06,441 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 193 of 193 statements. [2025-03-17 14:54:06,441 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:54:06,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:06,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 14:54:06,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:54:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 0 proven. 875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:06,731 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:54:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 0 proven. 875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:07,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:54:07,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697946837] [2025-03-17 14:54:07,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:54:07,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732511513] [2025-03-17 14:54:07,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732511513] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:54:07,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 14:54:07,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 22 [2025-03-17 14:54:07,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437686685] [2025-03-17 14:54:07,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 14:54:07,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 14:54:07,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:54:07,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 14:54:07,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:54:07,390 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand has 24 states, 23 states have (on average 16.782608695652176) internal successors, (386), 23 states have internal predecessors, (386), 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 14:54:08,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:54:08,865 INFO L93 Difference]: Finished difference Result 435 states and 446 transitions. [2025-03-17 14:54:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 14:54:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 16.782608695652176) internal successors, (386), 23 states have internal predecessors, (386), 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 193 [2025-03-17 14:54:08,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:54:08,869 INFO L225 Difference]: With dead ends: 435 [2025-03-17 14:54:08,869 INFO L226 Difference]: Without dead ends: 434 [2025-03-17 14:54:08,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 14:54:08,871 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 275 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:54:08,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 548 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-17 14:54:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2025-03-17 14:54:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 423. [2025-03-17 14:54:08,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 421 states have (on average 1.0308788598574823) internal successors, (434), 422 states have internal predecessors, (434), 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 14:54:08,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 434 transitions. [2025-03-17 14:54:08,885 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 434 transitions. Word has length 193 [2025-03-17 14:54:08,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:54:08,885 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 434 transitions. [2025-03-17 14:54:08,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 16.782608695652176) internal successors, (386), 23 states have internal predecessors, (386), 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 14:54:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 434 transitions. [2025-03-17 14:54:08,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-03-17 14:54:08,890 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:54:08,890 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1] [2025-03-17 14:54:08,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 14:54:09,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-17 14:54:09,091 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:54:09,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:54:09,091 INFO L85 PathProgramCache]: Analyzing trace with hash 308797297, now seen corresponding path program 3 times [2025-03-17 14:54:09,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:54:09,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638887158] [2025-03-17 14:54:09,091 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:54:09,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:54:09,098 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 206 statements into 11 equivalence classes. [2025-03-17 14:54:09,135 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 206 of 206 statements. [2025-03-17 14:54:09,138 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:54:09,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:09,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 1005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:09,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:54:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638887158] [2025-03-17 14:54:09,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638887158] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:54:09,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860408918] [2025-03-17 14:54:09,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:54:09,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:09,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:54:09,384 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:54:09,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 14:54:09,423 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 206 statements into 11 equivalence classes. [2025-03-17 14:54:09,457 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 206 of 206 statements. [2025-03-17 14:54:09,457 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:54:09,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:09,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:54:09,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:54:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 1005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:09,741 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:54:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 0 proven. 1005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:10,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860408918] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:54:10,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:54:10,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2025-03-17 14:54:10,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977127631] [2025-03-17 14:54:10,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:54:10,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 14:54:10,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:54:10,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 14:54:10,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:54:10,222 INFO L87 Difference]: Start difference. First operand 423 states and 434 transitions. Second operand has 24 states, 23 states have (on average 17.91304347826087) internal successors, (412), 23 states have internal predecessors, (412), 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 14:54:10,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:54:10,326 INFO L93 Difference]: Finished difference Result 437 states and 448 transitions. [2025-03-17 14:54:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 14:54:10,326 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.91304347826087) internal successors, (412), 23 states have internal predecessors, (412), 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 206 [2025-03-17 14:54:10,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:54:10,328 INFO L225 Difference]: With dead ends: 437 [2025-03-17 14:54:10,328 INFO L226 Difference]: Without dead ends: 436 [2025-03-17 14:54:10,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:54:10,329 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:54:10,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 397 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:54:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2025-03-17 14:54:10,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2025-03-17 14:54:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 434 states have (on average 1.0046082949308757) internal successors, (436), 435 states have internal predecessors, (436), 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 14:54:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 436 transitions. [2025-03-17 14:54:10,355 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 436 transitions. Word has length 206 [2025-03-17 14:54:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:54:10,355 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 436 transitions. [2025-03-17 14:54:10,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.91304347826087) internal successors, (412), 23 states have internal predecessors, (412), 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 14:54:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 436 transitions. [2025-03-17 14:54:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2025-03-17 14:54:10,359 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:54:10,359 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2025-03-17 14:54:10,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 14:54:10,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-17 14:54:10,563 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:54:10,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:54:10,564 INFO L85 PathProgramCache]: Analyzing trace with hash 102114758, now seen corresponding path program 4 times [2025-03-17 14:54:10,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:54:10,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132916622] [2025-03-17 14:54:10,564 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:54:10,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:54:10,579 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 421 statements into 2 equivalence classes. [2025-03-17 14:54:10,613 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 421 of 421 statements. [2025-03-17 14:54:10,613 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:54:10,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:54:10,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820622393] [2025-03-17 14:54:10,615 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:54:10,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:10,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:54:10,618 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:54:10,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 14:54:10,647 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 421 statements into 2 equivalence classes. [2025-03-17 14:54:10,703 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 421 of 421 statements. [2025-03-17 14:54:10,704 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:54:10,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:10,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-17 14:54:10,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:54:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 4433 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:11,426 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:54:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4433 backedges. 0 proven. 4433 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:12,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:54:12,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132916622] [2025-03-17 14:54:12,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:54:12,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820622393] [2025-03-17 14:54:12,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820622393] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:54:12,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 14:54:12,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 46 [2025-03-17 14:54:12,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629322477] [2025-03-17 14:54:12,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 14:54:12,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-03-17 14:54:12,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:54:12,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-03-17 14:54:12,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 14:54:12,848 INFO L87 Difference]: Start difference. First operand 436 states and 436 transitions. Second operand has 48 states, 47 states have (on average 17.914893617021278) internal successors, (842), 47 states have internal predecessors, (842), 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 14:54:17,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:54:17,574 INFO L93 Difference]: Finished difference Result 903 states and 926 transitions. [2025-03-17 14:54:17,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 14:54:17,575 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 17.914893617021278) internal successors, (842), 47 states have internal predecessors, (842), 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 421 [2025-03-17 14:54:17,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:54:17,577 INFO L225 Difference]: With dead ends: 903 [2025-03-17 14:54:17,577 INFO L226 Difference]: Without dead ends: 902 [2025-03-17 14:54:17,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 862 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2025-03-17 14:54:17,579 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 653 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 8269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 8271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-03-17 14:54:17,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 2252 Invalid, 8271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8269 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-03-17 14:54:17,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2025-03-17 14:54:17,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 879. [2025-03-17 14:54:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 877 states have (on average 1.0285062713797035) internal successors, (902), 878 states have internal predecessors, (902), 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 14:54:17,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 902 transitions. [2025-03-17 14:54:17,600 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 902 transitions. Word has length 421 [2025-03-17 14:54:17,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:54:17,600 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 902 transitions. [2025-03-17 14:54:17,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 17.914893617021278) internal successors, (842), 47 states have internal predecessors, (842), 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 14:54:17,601 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 902 transitions. [2025-03-17 14:54:17,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2025-03-17 14:54:17,604 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:54:17,604 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1] [2025-03-17 14:54:17,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-17 14:54:17,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:17,805 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:54:17,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:54:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2101899215, now seen corresponding path program 4 times [2025-03-17 14:54:17,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:54:17,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919803851] [2025-03-17 14:54:17,806 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:54:17,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:54:17,819 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 434 statements into 2 equivalence classes. [2025-03-17 14:54:17,844 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 434 of 434 statements. [2025-03-17 14:54:17,844 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:54:17,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:18,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4719 backedges. 0 proven. 4719 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:18,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:54:18,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919803851] [2025-03-17 14:54:18,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919803851] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:54:18,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237858944] [2025-03-17 14:54:18,632 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:54:18,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:18,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:54:18,633 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:54:18,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 14:54:18,680 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 434 statements into 2 equivalence classes. [2025-03-17 14:54:18,737 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 434 of 434 statements. [2025-03-17 14:54:18,737 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:54:18,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:18,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 14:54:18,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:54:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4719 backedges. 0 proven. 4719 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:19,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:54:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4719 backedges. 0 proven. 4719 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:20,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237858944] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:54:20,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:54:20,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 46 [2025-03-17 14:54:20,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518588383] [2025-03-17 14:54:20,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:54:20,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-03-17 14:54:20,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:54:20,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-03-17 14:54:20,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 14:54:20,252 INFO L87 Difference]: Start difference. First operand 879 states and 902 transitions. Second operand has 48 states, 47 states have (on average 18.46808510638298) internal successors, (868), 47 states have internal predecessors, (868), 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 14:54:20,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:54:20,447 INFO L93 Difference]: Finished difference Result 893 states and 916 transitions. [2025-03-17 14:54:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-17 14:54:20,447 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 18.46808510638298) internal successors, (868), 47 states have internal predecessors, (868), 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 434 [2025-03-17 14:54:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:54:20,450 INFO L225 Difference]: With dead ends: 893 [2025-03-17 14:54:20,450 INFO L226 Difference]: Without dead ends: 892 [2025-03-17 14:54:20,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 889 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-03-17 14:54:20,451 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:54:20,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 809 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:54:20,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2025-03-17 14:54:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2025-03-17 14:54:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 890 states have (on average 1.002247191011236) internal successors, (892), 891 states have internal predecessors, (892), 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 14:54:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 892 transitions. [2025-03-17 14:54:20,474 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 892 transitions. Word has length 434 [2025-03-17 14:54:20,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:54:20,475 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 892 transitions. [2025-03-17 14:54:20,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 18.46808510638298) internal successors, (868), 47 states have internal predecessors, (868), 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 14:54:20,475 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 892 transitions. [2025-03-17 14:54:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 878 [2025-03-17 14:54:20,479 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:54:20,480 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1] [2025-03-17 14:54:20,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 14:54:20,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:20,684 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:54:20,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:54:20,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1025274950, now seen corresponding path program 5 times [2025-03-17 14:54:20,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:54:20,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840424315] [2025-03-17 14:54:20,685 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:54:20,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:54:20,707 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 877 statements into 47 equivalence classes. [2025-03-17 14:54:21,250 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 877 of 877 statements. [2025-03-17 14:54:21,250 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:54:21,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:54:21,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967351385] [2025-03-17 14:54:21,255 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:54:21,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:21,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:54:21,256 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:54:21,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 14:54:21,309 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 877 statements into 47 equivalence classes. [2025-03-17 14:54:21,541 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 877 of 877 statements. [2025-03-17 14:54:21,541 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:54:21,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:21,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-03-17 14:54:21,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:54:23,345 INFO L134 CoverageAnalysis]: Checked inductivity of 19757 backedges. 0 proven. 19757 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:23,345 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:54:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 19757 backedges. 0 proven. 19757 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:27,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:54:27,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840424315] [2025-03-17 14:54:27,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 14:54:27,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967351385] [2025-03-17 14:54:27,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967351385] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:54:27,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 14:54:27,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 94 [2025-03-17 14:54:27,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290206341] [2025-03-17 14:54:27,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 14:54:27,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-17 14:54:27,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:54:27,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-17 14:54:27,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:54:27,696 INFO L87 Difference]: Start difference. First operand 892 states and 892 transitions. Second operand has 96 states, 95 states have (on average 18.46315789473684) internal successors, (1754), 95 states have internal predecessors, (1754), 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 14:54:47,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:54:47,366 INFO L93 Difference]: Finished difference Result 1839 states and 1886 transitions. [2025-03-17 14:54:47,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-03-17 14:54:47,366 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 18.46315789473684) internal successors, (1754), 95 states have internal predecessors, (1754), 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 877 [2025-03-17 14:54:47,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:54:47,370 INFO L225 Difference]: With dead ends: 1839 [2025-03-17 14:54:47,370 INFO L226 Difference]: Without dead ends: 1838 [2025-03-17 14:54:47,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1798 GetRequests, 1658 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2025-03-17 14:54:47,375 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 1912 mSDsluCounter, 8925 mSDsCounter, 0 mSdLazyCounter, 33830 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 9116 SdHoareTripleChecker+Invalid, 33832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2025-03-17 14:54:47,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 9116 Invalid, 33832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 33830 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2025-03-17 14:54:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2025-03-17 14:54:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1791. [2025-03-17 14:54:47,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1789 states have (on average 1.0273896031302403) internal successors, (1838), 1790 states have internal predecessors, (1838), 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 14:54:47,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 1838 transitions. [2025-03-17 14:54:47,417 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 1838 transitions. Word has length 877 [2025-03-17 14:54:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:54:47,418 INFO L471 AbstractCegarLoop]: Abstraction has 1791 states and 1838 transitions. [2025-03-17 14:54:47,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 18.46315789473684) internal successors, (1754), 95 states have internal predecessors, (1754), 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 14:54:47,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 1838 transitions. [2025-03-17 14:54:47,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2025-03-17 14:54:47,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:54:47,422 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 1, 1] [2025-03-17 14:54:47,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 14:54:47,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-17 14:54:47,623 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:54:47,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:54:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash -406531663, now seen corresponding path program 5 times [2025-03-17 14:54:47,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:54:47,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228128252] [2025-03-17 14:54:47,624 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:54:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:54:47,642 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 890 statements into 47 equivalence classes. [2025-03-17 14:54:48,082 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 890 of 890 statements. [2025-03-17 14:54:48,083 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:54:48,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:50,748 INFO L134 CoverageAnalysis]: Checked inductivity of 20355 backedges. 0 proven. 20355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:50,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:54:50,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228128252] [2025-03-17 14:54:50,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228128252] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:54:50,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797291050] [2025-03-17 14:54:50,749 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:54:50,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:50,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:54:50,755 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:54:50,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 14:54:50,797 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 890 statements into 47 equivalence classes. [2025-03-17 14:54:51,002 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 890 of 890 statements. [2025-03-17 14:54:51,002 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:54:51,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:54:51,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-17 14:54:51,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:54:51,743 INFO L134 CoverageAnalysis]: Checked inductivity of 20355 backedges. 0 proven. 20355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:51,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:54:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 20355 backedges. 0 proven. 20355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:54:54,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797291050] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:54:54,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:54:54,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 94 [2025-03-17 14:54:54,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456631831] [2025-03-17 14:54:54,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:54:54,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-17 14:54:54,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:54:54,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-17 14:54:54,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:54:54,837 INFO L87 Difference]: Start difference. First operand 1791 states and 1838 transitions. Second operand has 96 states, 95 states have (on average 18.736842105263158) internal successors, (1780), 95 states have internal predecessors, (1780), 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 14:54:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:54:55,493 INFO L93 Difference]: Finished difference Result 1805 states and 1852 transitions. [2025-03-17 14:54:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-03-17 14:54:55,493 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 18.736842105263158) internal successors, (1780), 95 states have internal predecessors, (1780), 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 890 [2025-03-17 14:54:55,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:54:55,497 INFO L225 Difference]: With dead ends: 1805 [2025-03-17 14:54:55,498 INFO L226 Difference]: Without dead ends: 1804 [2025-03-17 14:54:55,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1825 GetRequests, 1731 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-03-17 14:54:55,500 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:54:55,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1626 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:54:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2025-03-17 14:54:55,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1804. [2025-03-17 14:54:55,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1802 states have (on average 1.0011098779134295) internal successors, (1804), 1803 states have internal predecessors, (1804), 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 14:54:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 1804 transitions. [2025-03-17 14:54:55,536 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 1804 transitions. Word has length 890 [2025-03-17 14:54:55,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:54:55,537 INFO L471 AbstractCegarLoop]: Abstraction has 1804 states and 1804 transitions. [2025-03-17 14:54:55,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 18.736842105263158) internal successors, (1780), 95 states have internal predecessors, (1780), 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 14:54:55,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 1804 transitions. [2025-03-17 14:54:55,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1790 [2025-03-17 14:54:55,550 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:54:55,550 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1] [2025-03-17 14:54:55,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-17 14:54:55,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-17 14:54:55,752 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-17 14:54:55,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:54:55,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1812042054, now seen corresponding path program 6 times [2025-03-17 14:54:55,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:54:55,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053888218] [2025-03-17 14:54:55,753 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:54:55,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:54:55,786 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1789 statements into 95 equivalence classes. [2025-03-17 14:54:56,729 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1789 of 1789 statements. [2025-03-17 14:54:56,730 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:54:56,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 14:54:56,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297109507] [2025-03-17 14:54:56,736 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:54:56,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:54:56,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:54:56,738 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 14:54:56,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 14:54:56,795 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1789 statements into 95 equivalence classes. [2025-03-17 14:55:13,499 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1789 of 1789 statements. [2025-03-17 14:55:13,500 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-17 14:55:13,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:55:13,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 2456 conjuncts, 191 conjuncts are in the unsatisfiable core [2025-03-17 14:55:13,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:55:17,937 INFO L134 CoverageAnalysis]: Checked inductivity of 83237 backedges. 0 proven. 83237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:55:17,938 INFO L312 TraceCheckSpWp]: Computing backward predicates...