./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound10.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/nla-digbench-scaling/mannadiv_unwindbound10.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 58e0ac80b52681cc0cdead13de3f6425618df79dffe8d2a1da55e71c89383d0a --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:30:29,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:30:29,303 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:30:29,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:30:29,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:30:29,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:30:29,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:30:29,329 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:30:29,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:30:29,329 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:30:29,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:30:29,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:30:29,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:30:29,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:30:29,330 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:30:29,331 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:30:29,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:30:29,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:30:29,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:30:29,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:30:29,332 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 -> 58e0ac80b52681cc0cdead13de3f6425618df79dffe8d2a1da55e71c89383d0a [2025-03-17 15:30:29,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:30:29,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:30:29,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:30:29,616 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:30:29,616 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:30:29,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound10.c [2025-03-17 15:30:30,826 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5b31a02/3e3e783e06db458296a54991aefda73e/FLAG67b33ab55 [2025-03-17 15:30:31,013 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:30:31,013 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound10.c [2025-03-17 15:30:31,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5b31a02/3e3e783e06db458296a54991aefda73e/FLAG67b33ab55 [2025-03-17 15:30:31,056 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5b31a02/3e3e783e06db458296a54991aefda73e [2025-03-17 15:30:31,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:30:31,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:30:31,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:30:31,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:30:31,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:30:31,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3981c6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31, skipping insertion in model container [2025-03-17 15:30:31,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:30:31,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:30:31,198 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:30:31,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:30:31,219 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:30:31,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31 WrapperNode [2025-03-17 15:30:31,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:30:31,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:30:31,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:30:31,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:30:31,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,244 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2025-03-17 15:30:31,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:30:31,246 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:30:31,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:30:31,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:30:31,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,253 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,265 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 15:30:31,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,268 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,270 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:30:31,272 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:30:31,272 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:30:31,272 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:30:31,272 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (1/1) ... [2025-03-17 15:30:31,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:30:31,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:31,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:30:31,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:30:31,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:30:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 15:30:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 15:30:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:30:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:30:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:30:31,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:30:31,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:30:31,368 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:30:31,370 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:30:31,525 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2025-03-17 15:30:31,526 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:30:31,534 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:30:31,534 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:30:31,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:30:31 BoogieIcfgContainer [2025-03-17 15:30:31,534 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:30:31,536 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:30:31,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:30:31,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:30:31,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:30:31" (1/3) ... [2025-03-17 15:30:31,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6992d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:30:31, skipping insertion in model container [2025-03-17 15:30:31,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:30:31" (2/3) ... [2025-03-17 15:30:31,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6992d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:30:31, skipping insertion in model container [2025-03-17 15:30:31,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:30:31" (3/3) ... [2025-03-17 15:30:31,541 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound10.c [2025-03-17 15:30:31,552 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:30:31,553 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_unwindbound10.c that has 3 procedures, 65 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2025-03-17 15:30:31,598 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:30:31,609 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;@45e572c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:30:31,610 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-17 15:30:31,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 58 states have internal predecessors, (64), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:30:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:30:31,618 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:31,619 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:31,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:31,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:31,624 INFO L85 PathProgramCache]: Analyzing trace with hash 969790049, now seen corresponding path program 1 times [2025-03-17 15:30:31,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:31,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150312789] [2025-03-17 15:30:31,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:31,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:31,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:30:31,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:30:31,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:31,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 15:30:31,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:31,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150312789] [2025-03-17 15:30:31,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150312789] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:31,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132446594] [2025-03-17 15:30:31,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:31,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:31,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:31,744 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:31,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:30:31,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:30:31,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:30:31,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:31,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:31,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 15:30:31,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:31,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 15:30:31,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:30:31,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132446594] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:31,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:31,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-17 15:30:31,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952484612] [2025-03-17 15:30:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:31,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 15:30:31,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:31,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 15:30:31,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:30:31,834 INFO L87 Difference]: Start difference. First operand has 65 states, 36 states have (on average 1.7777777777777777) internal successors, (64), 58 states have internal predecessors, (64), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:30:31,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:31,851 INFO L93 Difference]: Finished difference Result 128 states and 145 transitions. [2025-03-17 15:30:31,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 15:30:31,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2025-03-17 15:30:31,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:31,858 INFO L225 Difference]: With dead ends: 128 [2025-03-17 15:30:31,858 INFO L226 Difference]: Without dead ends: 61 [2025-03-17 15:30:31,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 15:30:31,865 INFO L435 NwaCegarLoop]: 69 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, 69 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 15:30:31,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:30:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2025-03-17 15:30:31,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2025-03-17 15:30:31,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 55 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:30:31,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2025-03-17 15:30:31,902 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 14 [2025-03-17 15:30:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:31,904 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2025-03-17 15:30:31,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 15:30:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2025-03-17 15:30:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:30:31,906 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:31,906 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:31,913 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 15:30:32,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 15:30:32,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:32,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:32,108 INFO L85 PathProgramCache]: Analyzing trace with hash -798532159, now seen corresponding path program 1 times [2025-03-17 15:30:32,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:32,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098267375] [2025-03-17 15:30:32,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:32,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:32,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:30:32,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:30:32,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:32,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:32,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098267375] [2025-03-17 15:30:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098267375] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:30:32,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:30:32,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976545688] [2025-03-17 15:30:32,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:32,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:30:32,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:32,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:30:32,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:30:32,219 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:32,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:32,275 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2025-03-17 15:30:32,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:30:32,277 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2025-03-17 15:30:32,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:32,278 INFO L225 Difference]: With dead ends: 75 [2025-03-17 15:30:32,278 INFO L226 Difference]: Without dead ends: 65 [2025-03-17 15:30:32,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 15:30:32,279 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:32,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 168 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:30:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2025-03-17 15:30:32,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2025-03-17 15:30:32,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.631578947368421) internal successors, (62), 59 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:30:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2025-03-17 15:30:32,289 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 14 [2025-03-17 15:30:32,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:32,291 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2025-03-17 15:30:32,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2025-03-17 15:30:32,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-17 15:30:32,292 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:32,292 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:32,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:30:32,294 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:32,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:32,295 INFO L85 PathProgramCache]: Analyzing trace with hash 752322576, now seen corresponding path program 1 times [2025-03-17 15:30:32,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:32,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604522468] [2025-03-17 15:30:32,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:32,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:32,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 15:30:32,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 15:30:32,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:32,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:32,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132887050] [2025-03-17 15:30:32,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:32,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:32,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:32,330 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:32,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:30:32,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 15:30:32,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 15:30:32,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:32,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:32,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:30:32,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:32,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:32,392 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:30:32,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:32,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604522468] [2025-03-17 15:30:32,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:32,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132887050] [2025-03-17 15:30:32,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132887050] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:32,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:30:32,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:30:32,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972495714] [2025-03-17 15:30:32,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:32,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:30:32,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:32,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:30:32,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:30:32,396 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:32,476 INFO L93 Difference]: Finished difference Result 104 states and 116 transitions. [2025-03-17 15:30:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:30:32,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2025-03-17 15:30:32,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:32,477 INFO L225 Difference]: With dead ends: 104 [2025-03-17 15:30:32,477 INFO L226 Difference]: Without dead ends: 98 [2025-03-17 15:30:32,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:30:32,478 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 29 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:32,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 89 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-03-17 15:30:32,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2025-03-17 15:30:32,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.65) internal successors, (99), 81 states have internal predecessors, (99), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 15:30:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 107 transitions. [2025-03-17 15:30:32,489 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 107 transitions. Word has length 17 [2025-03-17 15:30:32,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:32,490 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 107 transitions. [2025-03-17 15:30:32,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:32,490 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 107 transitions. [2025-03-17 15:30:32,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-17 15:30:32,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:32,490 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:32,497 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 15:30:32,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-17 15:30:32,691 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:32,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:32,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1427490222, now seen corresponding path program 1 times [2025-03-17 15:30:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:32,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884720415] [2025-03-17 15:30:32,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:32,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:32,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 15:30:32,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 15:30:32,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:32,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:32,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:32,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:32,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884720415] [2025-03-17 15:30:32,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884720415] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:32,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:30:32,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:30:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656496908] [2025-03-17 15:30:32,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:32,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:30:32,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:32,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:30:32,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:30:32,776 INFO L87 Difference]: Start difference. First operand 88 states and 107 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:32,885 INFO L93 Difference]: Finished difference Result 138 states and 175 transitions. [2025-03-17 15:30:32,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:30:32,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-17 15:30:32,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:32,892 INFO L225 Difference]: With dead ends: 138 [2025-03-17 15:30:32,893 INFO L226 Difference]: Without dead ends: 131 [2025-03-17 15:30:32,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 15:30:32,894 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 28 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:32,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 108 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:32,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-03-17 15:30:32,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 124. [2025-03-17 15:30:32,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 94 states have (on average 1.5957446808510638) internal successors, (150), 115 states have internal predecessors, (150), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:30:32,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2025-03-17 15:30:32,912 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 19 [2025-03-17 15:30:32,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:32,912 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2025-03-17 15:30:32,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:32,912 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2025-03-17 15:30:32,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-17 15:30:32,912 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:32,912 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:32,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 15:30:32,915 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:32,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:32,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1302523931, now seen corresponding path program 1 times [2025-03-17 15:30:32,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:32,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441000567] [2025-03-17 15:30:32,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:32,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:32,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 15:30:32,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 15:30:32,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:32,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:33,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:33,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441000567] [2025-03-17 15:30:33,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441000567] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:33,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:30:33,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:30:33,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644189699] [2025-03-17 15:30:33,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:33,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:30:33,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:33,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:30:33,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:30:33,005 INFO L87 Difference]: Start difference. First operand 124 states and 162 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:33,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:33,206 INFO L93 Difference]: Finished difference Result 135 states and 165 transitions. [2025-03-17 15:30:33,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:30:33,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2025-03-17 15:30:33,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:33,207 INFO L225 Difference]: With dead ends: 135 [2025-03-17 15:30:33,207 INFO L226 Difference]: Without dead ends: 126 [2025-03-17 15:30:33,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 15:30:33,208 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 29 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:33,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 112 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:30:33,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2025-03-17 15:30:33,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 120. [2025-03-17 15:30:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.5666666666666667) internal successors, (141), 111 states have internal predecessors, (141), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:30:33,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2025-03-17 15:30:33,219 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 20 [2025-03-17 15:30:33,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:33,219 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2025-03-17 15:30:33,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:33,219 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2025-03-17 15:30:33,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 15:30:33,220 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:33,220 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:33,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 15:30:33,220 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:33,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:33,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1723536204, now seen corresponding path program 1 times [2025-03-17 15:30:33,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:33,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541393075] [2025-03-17 15:30:33,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:33,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:33,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 15:30:33,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 15:30:33,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:33,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:33,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:33,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:33,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541393075] [2025-03-17 15:30:33,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541393075] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:33,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52830167] [2025-03-17 15:30:33,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:33,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:33,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:33,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:33,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:30:33,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 15:30:33,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 15:30:33,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:33,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:33,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:30:33,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:33,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:33,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:30:33,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52830167] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:33,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:33,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-17 15:30:33,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018494820] [2025-03-17 15:30:33,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:33,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:30:33,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:33,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:30:33,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:33,504 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:33,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:33,585 INFO L93 Difference]: Finished difference Result 123 states and 157 transitions. [2025-03-17 15:30:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:30:33,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2025-03-17 15:30:33,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:33,587 INFO L225 Difference]: With dead ends: 123 [2025-03-17 15:30:33,587 INFO L226 Difference]: Without dead ends: 122 [2025-03-17 15:30:33,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:30:33,587 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 81 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:33,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 73 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:33,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2025-03-17 15:30:33,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2025-03-17 15:30:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.5555555555555556) internal successors, (140), 111 states have internal predecessors, (140), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:30:33,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 152 transitions. [2025-03-17 15:30:33,599 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 152 transitions. Word has length 21 [2025-03-17 15:30:33,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:33,600 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 152 transitions. [2025-03-17 15:30:33,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:33,600 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions. [2025-03-17 15:30:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 15:30:33,600 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:33,600 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:33,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:33,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:33,801 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:33,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1890014777, now seen corresponding path program 1 times [2025-03-17 15:30:33,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:33,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876533416] [2025-03-17 15:30:33,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:33,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:33,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 15:30:33,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 15:30:33,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:33,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:33,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [767225480] [2025-03-17 15:30:33,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:33,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:33,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:33,819 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:33,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:30:33,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 15:30:33,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 15:30:33,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:33,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:33,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:30:33,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:33,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:33,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:30:33,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:33,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876533416] [2025-03-17 15:30:33,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:33,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767225480] [2025-03-17 15:30:33,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767225480] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:33,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:30:33,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:30:33,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973204495] [2025-03-17 15:30:33,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:33,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:30:33,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:33,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:30:33,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:30:33,954 INFO L87 Difference]: Start difference. First operand 120 states and 152 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:34,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:34,046 INFO L93 Difference]: Finished difference Result 121 states and 152 transitions. [2025-03-17 15:30:34,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:30:34,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2025-03-17 15:30:34,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:34,048 INFO L225 Difference]: With dead ends: 121 [2025-03-17 15:30:34,048 INFO L226 Difference]: Without dead ends: 120 [2025-03-17 15:30:34,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 15:30:34,049 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 74 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:34,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 78 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:34,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-17 15:30:34,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-03-17 15:30:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 90 states have (on average 1.5444444444444445) internal successors, (139), 111 states have internal predecessors, (139), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:30:34,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2025-03-17 15:30:34,055 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 151 transitions. Word has length 22 [2025-03-17 15:30:34,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:34,055 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 151 transitions. [2025-03-17 15:30:34,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 15:30:34,055 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 151 transitions. [2025-03-17 15:30:34,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 15:30:34,056 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:34,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:34,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 15:30:34,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:34,260 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:34,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:34,260 INFO L85 PathProgramCache]: Analyzing trace with hash 117501827, now seen corresponding path program 1 times [2025-03-17 15:30:34,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:34,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753758269] [2025-03-17 15:30:34,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:34,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:34,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:30:34,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:30:34,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:34,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:34,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:34,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753758269] [2025-03-17 15:30:34,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753758269] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:34,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504334937] [2025-03-17 15:30:34,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:34,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:34,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:34,371 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:34,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:30:34,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:30:34,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:30:34,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:34,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:34,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:30:34,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:34,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:34,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:34,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:34,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504334937] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:34,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:34,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-17 15:30:34,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542814110] [2025-03-17 15:30:34,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:34,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:30:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:34,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:30:34,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:34,540 INFO L87 Difference]: Start difference. First operand 120 states and 151 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:34,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:34,653 INFO L93 Difference]: Finished difference Result 191 states and 238 transitions. [2025-03-17 15:30:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:30:34,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 34 [2025-03-17 15:30:34,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:34,654 INFO L225 Difference]: With dead ends: 191 [2025-03-17 15:30:34,654 INFO L226 Difference]: Without dead ends: 189 [2025-03-17 15:30:34,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:30:34,655 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:34,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 242 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:34,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2025-03-17 15:30:34,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 167. [2025-03-17 15:30:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 135 states have (on average 1.548148148148148) internal successors, (209), 156 states have internal predecessors, (209), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:30:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2025-03-17 15:30:34,663 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 34 [2025-03-17 15:30:34,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:34,663 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2025-03-17 15:30:34,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 7 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2025-03-17 15:30:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-17 15:30:34,664 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:34,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:34,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:34,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:34,868 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:34,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:34,869 INFO L85 PathProgramCache]: Analyzing trace with hash -652410679, now seen corresponding path program 1 times [2025-03-17 15:30:34,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:34,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486882272] [2025-03-17 15:30:34,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:34,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:34,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 15:30:34,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 15:30:34,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:34,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:34,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:34,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486882272] [2025-03-17 15:30:34,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486882272] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:34,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:30:34,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:30:34,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526473131] [2025-03-17 15:30:34,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:34,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:30:34,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:34,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:30:34,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:30:34,908 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:34,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:34,937 INFO L93 Difference]: Finished difference Result 177 states and 234 transitions. [2025-03-17 15:30:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:30:34,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2025-03-17 15:30:34,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:34,938 INFO L225 Difference]: With dead ends: 177 [2025-03-17 15:30:34,938 INFO L226 Difference]: Without dead ends: 175 [2025-03-17 15:30:34,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 15:30:34,939 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 80 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:34,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 76 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:30:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2025-03-17 15:30:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2025-03-17 15:30:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 135 states have (on average 1.511111111111111) internal successors, (204), 154 states have internal predecessors, (204), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:30:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2025-03-17 15:30:34,949 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 35 [2025-03-17 15:30:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:34,950 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2025-03-17 15:30:34,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2025-03-17 15:30:34,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-17 15:30:34,950 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:34,950 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:34,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 15:30:34,951 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:34,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:34,951 INFO L85 PathProgramCache]: Analyzing trace with hash 98563431, now seen corresponding path program 1 times [2025-03-17 15:30:34,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:34,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827344034] [2025-03-17 15:30:34,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:34,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:34,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 15:30:34,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 15:30:34,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:34,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:35,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:35,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827344034] [2025-03-17 15:30:35,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827344034] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:35,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551886830] [2025-03-17 15:30:35,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:35,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:35,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:35,063 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:35,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:30:35,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 15:30:35,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 15:30:35,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:35,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:35,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:30:35,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:35,155 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:35,155 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:30:35,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551886830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:35,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:35,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:30:35,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888078452] [2025-03-17 15:30:35,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:35,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:30:35,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:35,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:30:35,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:30:35,157 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:35,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:35,182 INFO L93 Difference]: Finished difference Result 165 states and 220 transitions. [2025-03-17 15:30:35,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:30:35,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2025-03-17 15:30:35,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:35,184 INFO L225 Difference]: With dead ends: 165 [2025-03-17 15:30:35,184 INFO L226 Difference]: Without dead ends: 164 [2025-03-17 15:30:35,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:30:35,185 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 42 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:35,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 109 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:30:35,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-03-17 15:30:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2025-03-17 15:30:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 135 states have (on average 1.474074074074074) internal successors, (199), 153 states have internal predecessors, (199), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:30:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2025-03-17 15:30:35,195 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 37 [2025-03-17 15:30:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:35,195 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2025-03-17 15:30:35,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2025-03-17 15:30:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 15:30:35,196 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:35,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:35,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:35,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:35,396 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:35,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:35,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1239500916, now seen corresponding path program 1 times [2025-03-17 15:30:35,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:35,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111223772] [2025-03-17 15:30:35,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:35,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:35,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:30:35,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:30:35,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:35,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:35,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:35,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111223772] [2025-03-17 15:30:35,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111223772] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:35,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009776499] [2025-03-17 15:30:35,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:35,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:35,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:35,473 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:35,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:30:35,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:30:35,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:30:35,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:35,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:35,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:30:35,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:35,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:30:35,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009776499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:35,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:35,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:30:35,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600628958] [2025-03-17 15:30:35,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:35,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:30:35,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:35,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:30:35,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:30:35,561 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:35,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:35,613 INFO L93 Difference]: Finished difference Result 174 states and 224 transitions. [2025-03-17 15:30:35,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:30:35,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2025-03-17 15:30:35,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:35,617 INFO L225 Difference]: With dead ends: 174 [2025-03-17 15:30:35,617 INFO L226 Difference]: Without dead ends: 173 [2025-03-17 15:30:35,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:30:35,617 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 39 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:35,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 185 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:30:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2025-03-17 15:30:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 163. [2025-03-17 15:30:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 135 states have (on average 1.4370370370370371) internal successors, (194), 152 states have internal predecessors, (194), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:30:35,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 210 transitions. [2025-03-17 15:30:35,628 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 210 transitions. Word has length 38 [2025-03-17 15:30:35,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:35,628 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 210 transitions. [2025-03-17 15:30:35,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 210 transitions. [2025-03-17 15:30:35,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-17 15:30:35,630 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:35,630 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:35,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:35,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:35,835 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:35,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1454438748, now seen corresponding path program 1 times [2025-03-17 15:30:35,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:35,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656470943] [2025-03-17 15:30:35,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:35,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:35,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 15:30:35,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 15:30:35,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:35,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:35,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:35,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656470943] [2025-03-17 15:30:35,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656470943] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:35,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405805330] [2025-03-17 15:30:35,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:35,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:35,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:35,911 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:35,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:30:35,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 15:30:35,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 15:30:35,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:35,943 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:35,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:30:35,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:36,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:36,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405805330] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:36,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:36,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2025-03-17 15:30:36,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770533453] [2025-03-17 15:30:36,065 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:36,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:30:36,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:36,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:30:36,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:30:36,066 INFO L87 Difference]: Start difference. First operand 163 states and 210 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-03-17 15:30:36,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:36,160 INFO L93 Difference]: Finished difference Result 305 states and 362 transitions. [2025-03-17 15:30:36,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:30:36,160 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 40 [2025-03-17 15:30:36,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:36,162 INFO L225 Difference]: With dead ends: 305 [2025-03-17 15:30:36,162 INFO L226 Difference]: Without dead ends: 293 [2025-03-17 15:30:36,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2025-03-17 15:30:36,162 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 103 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:36,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 342 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:30:36,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2025-03-17 15:30:36,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 251. [2025-03-17 15:30:36,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 217 states have (on average 1.4101382488479262) internal successors, (306), 234 states have internal predecessors, (306), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 15:30:36,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 328 transitions. [2025-03-17 15:30:36,178 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 328 transitions. Word has length 40 [2025-03-17 15:30:36,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:36,178 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 328 transitions. [2025-03-17 15:30:36,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-03-17 15:30:36,179 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 328 transitions. [2025-03-17 15:30:36,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-17 15:30:36,179 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:36,179 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:36,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:36,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-17 15:30:36,380 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:36,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:36,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1454438742, now seen corresponding path program 1 times [2025-03-17 15:30:36,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:36,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498954259] [2025-03-17 15:30:36,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:36,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:36,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 15:30:36,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 15:30:36,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:36,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:36,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [830940744] [2025-03-17 15:30:36,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:36,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:36,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:36,393 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:36,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:30:36,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-17 15:30:36,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-17 15:30:36,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:36,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:36,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:30:36,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:36,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:36,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:36,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498954259] [2025-03-17 15:30:36,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:36,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830940744] [2025-03-17 15:30:36,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830940744] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:36,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:36,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:30:36,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040307116] [2025-03-17 15:30:36,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:36,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:30:36,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:36,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:30:36,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:36,700 INFO L87 Difference]: Start difference. First operand 251 states and 328 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:36,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:36,811 INFO L93 Difference]: Finished difference Result 258 states and 331 transitions. [2025-03-17 15:30:36,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:30:36,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2025-03-17 15:30:36,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:36,813 INFO L225 Difference]: With dead ends: 258 [2025-03-17 15:30:36,813 INFO L226 Difference]: Without dead ends: 251 [2025-03-17 15:30:36,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:30:36,814 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 43 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:36,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 77 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:36,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-03-17 15:30:36,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 247. [2025-03-17 15:30:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 218 states have (on average 1.3073394495412844) internal successors, (285), 230 states have internal predecessors, (285), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 15:30:36,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 307 transitions. [2025-03-17 15:30:36,824 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 307 transitions. Word has length 40 [2025-03-17 15:30:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:36,824 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 307 transitions. [2025-03-17 15:30:36,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 307 transitions. [2025-03-17 15:30:36,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-17 15:30:36,825 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:36,825 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:36,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 15:30:37,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-17 15:30:37,026 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:37,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:37,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2137928029, now seen corresponding path program 1 times [2025-03-17 15:30:37,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:37,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949444528] [2025-03-17 15:30:37,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:37,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:37,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:30:37,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:30:37,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:37,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:37,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115265381] [2025-03-17 15:30:37,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:37,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:37,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:37,038 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:37,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:30:37,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:30:37,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:30:37,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:37,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:37,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:30:37,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:37,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:37,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:37,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949444528] [2025-03-17 15:30:37,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:37,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115265381] [2025-03-17 15:30:37,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115265381] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:37,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:37,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:30:37,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402750991] [2025-03-17 15:30:37,405 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:37,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:30:37,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:37,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:30:37,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:37,406 INFO L87 Difference]: Start difference. First operand 247 states and 307 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:37,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:37,514 INFO L93 Difference]: Finished difference Result 335 states and 415 transitions. [2025-03-17 15:30:37,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:30:37,514 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2025-03-17 15:30:37,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:37,516 INFO L225 Difference]: With dead ends: 335 [2025-03-17 15:30:37,516 INFO L226 Difference]: Without dead ends: 330 [2025-03-17 15:30:37,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:37,517 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 102 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:37,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 128 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:37,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2025-03-17 15:30:37,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 314. [2025-03-17 15:30:37,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 282 states have (on average 1.2872340425531914) internal successors, (363), 294 states have internal predecessors, (363), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 15:30:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 391 transitions. [2025-03-17 15:30:37,532 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 391 transitions. Word has length 41 [2025-03-17 15:30:37,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:37,532 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 391 transitions. [2025-03-17 15:30:37,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 391 transitions. [2025-03-17 15:30:37,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 15:30:37,533 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:37,533 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:37,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:37,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 15:30:37,737 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:37,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:37,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1007179481, now seen corresponding path program 1 times [2025-03-17 15:30:37,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:37,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659785618] [2025-03-17 15:30:37,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:37,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:37,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:30:37,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:30:37,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:37,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:37,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:37,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659785618] [2025-03-17 15:30:37,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659785618] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:37,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715720191] [2025-03-17 15:30:37,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:37,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:37,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:37,807 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 15:30:37,808 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 15:30:37,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:30:37,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:30:37,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:37,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:37,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:30:37,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:37,933 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:37,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:30:37,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715720191] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:30:37,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:37,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-17 15:30:37,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405687929] [2025-03-17 15:30:37,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:30:37,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:30:37,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:37,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:30:37,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:30:37,934 INFO L87 Difference]: Start difference. First operand 314 states and 391 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:38,002 INFO L93 Difference]: Finished difference Result 314 states and 391 transitions. [2025-03-17 15:30:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:30:38,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2025-03-17 15:30:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:38,003 INFO L225 Difference]: With dead ends: 314 [2025-03-17 15:30:38,003 INFO L226 Difference]: Without dead ends: 312 [2025-03-17 15:30:38,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:30:38,006 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:38,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 77 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:38,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-03-17 15:30:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 309. [2025-03-17 15:30:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 279 states have (on average 1.2759856630824373) internal successors, (356), 289 states have internal predecessors, (356), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 15:30:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 384 transitions. [2025-03-17 15:30:38,020 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 384 transitions. Word has length 42 [2025-03-17 15:30:38,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:38,021 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 384 transitions. [2025-03-17 15:30:38,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:30:38,021 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 384 transitions. [2025-03-17 15:30:38,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 15:30:38,021 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:38,021 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:38,028 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 15:30:38,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 15:30:38,222 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:38,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:38,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1157792830, now seen corresponding path program 1 times [2025-03-17 15:30:38,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:38,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007541822] [2025-03-17 15:30:38,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:38,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:38,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:30:38,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:30:38,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:38,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:38,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:38,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007541822] [2025-03-17 15:30:38,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007541822] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:38,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942327257] [2025-03-17 15:30:38,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:38,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:38,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:38,391 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 15:30:38,393 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 15:30:38,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:30:38,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:30:38,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:38,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:38,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:30:38,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:38,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:38,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942327257] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:38,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:30:38,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2025-03-17 15:30:38,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501677975] [2025-03-17 15:30:38,582 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:38,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:30:38,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:38,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:30:38,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:30:38,583 INFO L87 Difference]: Start difference. First operand 309 states and 384 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:30:38,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:38,930 INFO L93 Difference]: Finished difference Result 332 states and 399 transitions. [2025-03-17 15:30:38,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 15:30:38,930 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 43 [2025-03-17 15:30:38,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:38,931 INFO L225 Difference]: With dead ends: 332 [2025-03-17 15:30:38,931 INFO L226 Difference]: Without dead ends: 313 [2025-03-17 15:30:38,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2025-03-17 15:30:38,932 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 138 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:38,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 190 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:30:38,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-03-17 15:30:38,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 297. [2025-03-17 15:30:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 267 states have (on average 1.2134831460674158) internal successors, (324), 278 states have internal predecessors, (324), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 15:30:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 352 transitions. [2025-03-17 15:30:38,943 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 352 transitions. Word has length 43 [2025-03-17 15:30:38,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:38,943 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 352 transitions. [2025-03-17 15:30:38,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 15:30:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 352 transitions. [2025-03-17 15:30:38,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-17 15:30:38,943 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:38,943 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:38,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 15:30:39,148 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,SelfDestructingSolverStorable15 [2025-03-17 15:30:39,148 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:39,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:39,149 INFO L85 PathProgramCache]: Analyzing trace with hash -943868698, now seen corresponding path program 1 times [2025-03-17 15:30:39,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:39,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306926154] [2025-03-17 15:30:39,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:39,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:39,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:30:39,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:30:39,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:39,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:39,264 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:39,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:39,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306926154] [2025-03-17 15:30:39,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306926154] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:39,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787875074] [2025-03-17 15:30:39,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:39,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:39,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:39,267 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 15:30:39,267 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 15:30:39,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 15:30:39,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 15:30:39,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:39,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:39,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:30:39,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:39,394 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:39,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:39,570 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:30:39,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787875074] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:39,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:39,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-03-17 15:30:39,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974838521] [2025-03-17 15:30:39,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:39,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 15:30:39,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:39,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 15:30:39,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:30:39,572 INFO L87 Difference]: Start difference. First operand 297 states and 352 transitions. Second operand has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:30:39,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:39,872 INFO L93 Difference]: Finished difference Result 302 states and 354 transitions. [2025-03-17 15:30:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:30:39,873 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2025-03-17 15:30:39,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:39,875 INFO L225 Difference]: With dead ends: 302 [2025-03-17 15:30:39,875 INFO L226 Difference]: Without dead ends: 299 [2025-03-17 15:30:39,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 75 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2025-03-17 15:30:39,875 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 136 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:39,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 194 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:30:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2025-03-17 15:30:39,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2025-03-17 15:30:39,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 267 states have (on average 1.149812734082397) internal successors, (307), 275 states have internal predecessors, (307), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-17 15:30:39,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 335 transitions. [2025-03-17 15:30:39,885 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 335 transitions. Word has length 44 [2025-03-17 15:30:39,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:39,885 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 335 transitions. [2025-03-17 15:30:39,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0) internal successors, (64), 16 states have internal predecessors, (64), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 15:30:39,886 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 335 transitions. [2025-03-17 15:30:39,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-17 15:30:39,886 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:39,886 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:39,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:40,090 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,SelfDestructingSolverStorable16 [2025-03-17 15:30:40,090 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:40,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:40,090 INFO L85 PathProgramCache]: Analyzing trace with hash 804841439, now seen corresponding path program 1 times [2025-03-17 15:30:40,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:40,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792551848] [2025-03-17 15:30:40,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:40,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:40,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:30:40,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:30:40,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:40,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:40,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518165127] [2025-03-17 15:30:40,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:40,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:40,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:40,101 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 15:30:40,103 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 15:30:40,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:30:40,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:30:40,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:40,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:40,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 15:30:40,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:40,291 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:40,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:40,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792551848] [2025-03-17 15:30:40,397 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:40,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518165127] [2025-03-17 15:30:40,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518165127] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:40,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:30:40,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 15:30:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902441015] [2025-03-17 15:30:40,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:40,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:30:40,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:40,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:30:40,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:30:40,398 INFO L87 Difference]: Start difference. First operand 294 states and 335 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 15:30:40,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:40,611 INFO L93 Difference]: Finished difference Result 394 states and 449 transitions. [2025-03-17 15:30:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:30:40,612 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2025-03-17 15:30:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:40,613 INFO L225 Difference]: With dead ends: 394 [2025-03-17 15:30:40,613 INFO L226 Difference]: Without dead ends: 274 [2025-03-17 15:30:40,613 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:30:40,614 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 104 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:40,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 112 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2025-03-17 15:30:40,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 272. [2025-03-17 15:30:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 247 states have (on average 1.1093117408906883) internal successors, (274), 254 states have internal predecessors, (274), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 15:30:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 300 transitions. [2025-03-17 15:30:40,626 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 300 transitions. Word has length 45 [2025-03-17 15:30:40,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:40,626 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 300 transitions. [2025-03-17 15:30:40,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 15:30:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 300 transitions. [2025-03-17 15:30:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-17 15:30:40,626 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:40,627 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:40,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:40,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:40,828 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:40,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:40,828 INFO L85 PathProgramCache]: Analyzing trace with hash 318611261, now seen corresponding path program 2 times [2025-03-17 15:30:40,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:40,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541841389] [2025-03-17 15:30:40,829 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:40,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:40,832 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 2 equivalence classes. [2025-03-17 15:30:40,839 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:30:40,839 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:40,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:40,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976723062] [2025-03-17 15:30:40,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:40,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:40,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:40,841 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 15:30:40,843 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 15:30:40,861 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 64 statements into 2 equivalence classes. [2025-03-17 15:30:40,873 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 64 of 64 statements. [2025-03-17 15:30:40,873 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:40,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:40,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:30:40,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:30:40,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-17 15:30:41,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:41,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541841389] [2025-03-17 15:30:41,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:41,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976723062] [2025-03-17 15:30:41,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976723062] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:41,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:30:41,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-17 15:30:41,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652079162] [2025-03-17 15:30:41,134 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:41,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:30:41,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:41,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:30:41,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:30:41,135 INFO L87 Difference]: Start difference. First operand 272 states and 300 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:41,505 INFO L93 Difference]: Finished difference Result 441 states and 506 transitions. [2025-03-17 15:30:41,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:30:41,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 64 [2025-03-17 15:30:41,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:41,507 INFO L225 Difference]: With dead ends: 441 [2025-03-17 15:30:41,507 INFO L226 Difference]: Without dead ends: 428 [2025-03-17 15:30:41,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:30:41,508 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 161 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:41,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 287 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:30:41,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2025-03-17 15:30:41,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 390. [2025-03-17 15:30:41,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 359 states have (on average 1.128133704735376) internal successors, (405), 366 states have internal predecessors, (405), 19 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-17 15:30:41,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 443 transitions. [2025-03-17 15:30:41,524 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 443 transitions. Word has length 64 [2025-03-17 15:30:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:41,524 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 443 transitions. [2025-03-17 15:30:41,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 443 transitions. [2025-03-17 15:30:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-17 15:30:41,525 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:41,525 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:41,532 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 15:30:41,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:41,729 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:41,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:41,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1539851055, now seen corresponding path program 1 times [2025-03-17 15:30:41,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:41,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146022904] [2025-03-17 15:30:41,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:41,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:41,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:30:41,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:30:41,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:41,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:30:41,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:41,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146022904] [2025-03-17 15:30:41,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146022904] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:41,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332011877] [2025-03-17 15:30:41,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:41,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:41,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:41,786 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 15:30:41,787 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 15:30:41,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:30:41,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:30:41,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:41,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:41,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:30:41,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:30:41,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-17 15:30:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332011877] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:41,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:41,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-03-17 15:30:41,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685820637] [2025-03-17 15:30:41,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:41,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:30:41,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:41,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:30:41,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:41,947 INFO L87 Difference]: Start difference. First operand 390 states and 443 transitions. Second operand has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 15:30:42,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:42,060 INFO L93 Difference]: Finished difference Result 1011 states and 1242 transitions. [2025-03-17 15:30:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:30:42,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 76 [2025-03-17 15:30:42,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:42,065 INFO L225 Difference]: With dead ends: 1011 [2025-03-17 15:30:42,065 INFO L226 Difference]: Without dead ends: 1009 [2025-03-17 15:30:42,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:42,067 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 54 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:42,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 146 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:42,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2025-03-17 15:30:42,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 989. [2025-03-17 15:30:42,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 926 states have (on average 1.1339092872570193) internal successors, (1050), 931 states have internal predecessors, (1050), 52 states have call successors, (52), 5 states have call predecessors, (52), 5 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-17 15:30:42,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1154 transitions. [2025-03-17 15:30:42,118 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1154 transitions. Word has length 76 [2025-03-17 15:30:42,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:42,119 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1154 transitions. [2025-03-17 15:30:42,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 15.5) internal successors, (124), 9 states have internal predecessors, (124), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 15:30:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1154 transitions. [2025-03-17 15:30:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 15:30:42,121 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:42,121 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:42,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-17 15:30:42,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:42,322 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:42,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:42,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2112994946, now seen corresponding path program 1 times [2025-03-17 15:30:42,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:42,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485441659] [2025-03-17 15:30:42,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:42,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:42,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 15:30:42,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:30:42,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:42,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:42,407 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 15:30:42,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:42,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485441659] [2025-03-17 15:30:42,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485441659] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:42,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813101655] [2025-03-17 15:30:42,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:42,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:42,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:42,410 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 15:30:42,412 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 15:30:42,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-17 15:30:42,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:30:42,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:42,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:42,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:30:42,449 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:42,512 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 15:30:42,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 15:30:42,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813101655] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:42,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:42,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2025-03-17 15:30:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006352167] [2025-03-17 15:30:42,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:42,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:30:42,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:42,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:30:42,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:30:42,578 INFO L87 Difference]: Start difference. First operand 989 states and 1154 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:42,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:42,672 INFO L93 Difference]: Finished difference Result 1219 states and 1416 transitions. [2025-03-17 15:30:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:30:42,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 89 [2025-03-17 15:30:42,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:42,675 INFO L225 Difference]: With dead ends: 1219 [2025-03-17 15:30:42,676 INFO L226 Difference]: Without dead ends: 684 [2025-03-17 15:30:42,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:30:42,678 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 13 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:42,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 149 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:42,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2025-03-17 15:30:42,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 681. [2025-03-17 15:30:42,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 635 states have (on average 1.1118110236220473) internal successors, (706), 640 states have internal predecessors, (706), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-17 15:30:42,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 776 transitions. [2025-03-17 15:30:42,703 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 776 transitions. Word has length 89 [2025-03-17 15:30:42,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:42,703 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 776 transitions. [2025-03-17 15:30:42,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 776 transitions. [2025-03-17 15:30:42,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 15:30:42,704 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:42,704 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:42,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:42,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:42,905 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:42,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1996868931, now seen corresponding path program 2 times [2025-03-17 15:30:42,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:42,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169581549] [2025-03-17 15:30:42,905 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:42,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:42,908 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-03-17 15:30:42,914 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:30:42,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:42,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 14 proven. 27 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-17 15:30:43,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:43,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169581549] [2025-03-17 15:30:43,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169581549] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:43,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006497932] [2025-03-17 15:30:43,104 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:43,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:43,106 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 15:30:43,108 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 15:30:43,129 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-03-17 15:30:43,143 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 15:30:43,144 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:43,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:43,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:30:43,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:43,275 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 15:30:43,275 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 15:30:43,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006497932] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:43,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:43,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2025-03-17 15:30:43,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690492991] [2025-03-17 15:30:43,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:43,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 15:30:43,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:43,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 15:30:43,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:30:43,456 INFO L87 Difference]: Start difference. First operand 681 states and 776 transitions. Second operand has 23 states, 22 states have (on average 7.909090909090909) internal successors, (174), 22 states have internal predecessors, (174), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-17 15:30:44,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:44,611 INFO L93 Difference]: Finished difference Result 989 states and 1117 transitions. [2025-03-17 15:30:44,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-03-17 15:30:44,612 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.909090909090909) internal successors, (174), 22 states have internal predecessors, (174), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 89 [2025-03-17 15:30:44,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:44,615 INFO L225 Difference]: With dead ends: 989 [2025-03-17 15:30:44,615 INFO L226 Difference]: Without dead ends: 971 [2025-03-17 15:30:44,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1258, Invalid=4144, Unknown=0, NotChecked=0, Total=5402 [2025-03-17 15:30:44,620 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 455 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:44,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 261 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:30:44,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2025-03-17 15:30:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 675. [2025-03-17 15:30:44,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 631 states have (on average 1.057052297939778) internal successors, (667), 634 states have internal predecessors, (667), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-17 15:30:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 737 transitions. [2025-03-17 15:30:44,651 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 737 transitions. Word has length 89 [2025-03-17 15:30:44,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:44,651 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 737 transitions. [2025-03-17 15:30:44,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.909090909090909) internal successors, (174), 22 states have internal predecessors, (174), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-17 15:30:44,652 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 737 transitions. [2025-03-17 15:30:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-17 15:30:44,652 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:44,653 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:44,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:44,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:44,857 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:44,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:44,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1204914597, now seen corresponding path program 1 times [2025-03-17 15:30:44,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:44,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738037786] [2025-03-17 15:30:44,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:44,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:44,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-17 15:30:44,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-17 15:30:44,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:44,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-17 15:30:44,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:44,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738037786] [2025-03-17 15:30:44,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738037786] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:44,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559589407] [2025-03-17 15:30:44,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:44,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:44,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:44,921 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:44,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-17 15:30:44,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-17 15:30:44,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-17 15:30:44,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:44,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:44,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:30:44,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:45,029 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-17 15:30:45,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-17 15:30:45,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559589407] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:45,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:45,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 15:30:45,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868864367] [2025-03-17 15:30:45,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:45,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 15:30:45,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:45,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 15:30:45,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:30:45,132 INFO L87 Difference]: Start difference. First operand 675 states and 737 transitions. Second operand has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-17 15:30:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:45,268 INFO L93 Difference]: Finished difference Result 1610 states and 1789 transitions. [2025-03-17 15:30:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:30:45,269 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 102 [2025-03-17 15:30:45,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:45,273 INFO L225 Difference]: With dead ends: 1610 [2025-03-17 15:30:45,273 INFO L226 Difference]: Without dead ends: 1609 [2025-03-17 15:30:45,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:30:45,274 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 110 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:45,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 192 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:45,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1609 states. [2025-03-17 15:30:45,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1609 to 1589. [2025-03-17 15:30:45,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1497 states have (on average 1.0668002672010688) internal successors, (1597), 1500 states have internal predecessors, (1597), 83 states have call successors, (83), 5 states have call predecessors, (83), 5 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-17 15:30:45,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 1763 transitions. [2025-03-17 15:30:45,325 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 1763 transitions. Word has length 102 [2025-03-17 15:30:45,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:45,325 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 1763 transitions. [2025-03-17 15:30:45,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.6) internal successors, (166), 11 states have internal predecessors, (166), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-17 15:30:45,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 1763 transitions. [2025-03-17 15:30:45,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-17 15:30:45,327 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:45,327 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:45,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:45,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:45,529 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:45,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash -983238787, now seen corresponding path program 1 times [2025-03-17 15:30:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:45,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401761070] [2025-03-17 15:30:45,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:45,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 15:30:45,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:30:45,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:45,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:45,595 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 80 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-17 15:30:45,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:45,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401761070] [2025-03-17 15:30:45,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401761070] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:45,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405316704] [2025-03-17 15:30:45,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:45,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:45,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:45,597 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:45,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-17 15:30:45,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-17 15:30:45,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 15:30:45,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:45,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:45,650 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:30:45,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:45,721 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 92 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:30:45,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 80 proven. 30 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-17 15:30:45,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405316704] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:45,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:45,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-03-17 15:30:45,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929267598] [2025-03-17 15:30:45,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:45,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:30:45,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:45,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:30:45,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:45,804 INFO L87 Difference]: Start difference. First operand 1589 states and 1763 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-17 15:30:45,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:45,940 INFO L93 Difference]: Finished difference Result 1670 states and 1849 transitions. [2025-03-17 15:30:45,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:30:45,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 110 [2025-03-17 15:30:45,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:45,945 INFO L225 Difference]: With dead ends: 1670 [2025-03-17 15:30:45,945 INFO L226 Difference]: Without dead ends: 1516 [2025-03-17 15:30:45,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 214 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:30:45,946 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 55 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:45,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 212 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:45,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2025-03-17 15:30:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1512. [2025-03-17 15:30:46,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1423 states have (on average 1.0583274771609277) internal successors, (1506), 1426 states have internal predecessors, (1506), 80 states have call successors, (80), 5 states have call predecessors, (80), 5 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-17 15:30:46,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 1666 transitions. [2025-03-17 15:30:46,023 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 1666 transitions. Word has length 110 [2025-03-17 15:30:46,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:46,023 INFO L471 AbstractCegarLoop]: Abstraction has 1512 states and 1666 transitions. [2025-03-17 15:30:46,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-17 15:30:46,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 1666 transitions. [2025-03-17 15:30:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-17 15:30:46,025 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:46,025 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:46,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:46,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-17 15:30:46,226 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:46,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:46,226 INFO L85 PathProgramCache]: Analyzing trace with hash 2118793859, now seen corresponding path program 2 times [2025-03-17 15:30:46,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:46,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607159128] [2025-03-17 15:30:46,226 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:46,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:46,232 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 133 statements into 2 equivalence classes. [2025-03-17 15:30:46,239 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 15:30:46,239 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:46,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 58 proven. 128 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-17 15:30:46,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:46,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607159128] [2025-03-17 15:30:46,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607159128] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:46,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837928663] [2025-03-17 15:30:46,325 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:46,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:46,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:46,328 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:46,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-17 15:30:46,353 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 133 statements into 2 equivalence classes. [2025-03-17 15:30:46,372 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 15:30:46,373 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:46,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:46,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:30:46,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:30:46,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-17 15:30:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837928663] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:46,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 14] total 28 [2025-03-17 15:30:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745840563] [2025-03-17 15:30:46,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:46,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-17 15:30:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:46,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-17 15:30:46,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2025-03-17 15:30:46,823 INFO L87 Difference]: Start difference. First operand 1512 states and 1666 transitions. Second operand has 28 states, 28 states have (on average 10.678571428571429) internal successors, (299), 28 states have internal predecessors, (299), 16 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 16 states have call predecessors, (21), 16 states have call successors, (21) [2025-03-17 15:30:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:49,211 INFO L93 Difference]: Finished difference Result 4340 states and 4772 transitions. [2025-03-17 15:30:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2025-03-17 15:30:49,216 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 10.678571428571429) internal successors, (299), 28 states have internal predecessors, (299), 16 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 16 states have call predecessors, (21), 16 states have call successors, (21) Word has length 133 [2025-03-17 15:30:49,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:49,226 INFO L225 Difference]: With dead ends: 4340 [2025-03-17 15:30:49,226 INFO L226 Difference]: Without dead ends: 3404 [2025-03-17 15:30:49,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 242 SyntacticMatches, 4 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10192 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3506, Invalid=23226, Unknown=0, NotChecked=0, Total=26732 [2025-03-17 15:30:49,233 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 591 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:49,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 593 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 15:30:49,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2025-03-17 15:30:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2651. [2025-03-17 15:30:49,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2651 states, 2499 states have (on average 1.0484193677470988) internal successors, (2620), 2510 states have internal predecessors, (2620), 137 states have call successors, (137), 11 states have call predecessors, (137), 11 states have return successors, (137), 129 states have call predecessors, (137), 137 states have call successors, (137) [2025-03-17 15:30:49,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 2894 transitions. [2025-03-17 15:30:49,365 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 2894 transitions. Word has length 133 [2025-03-17 15:30:49,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:49,365 INFO L471 AbstractCegarLoop]: Abstraction has 2651 states and 2894 transitions. [2025-03-17 15:30:49,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.678571428571429) internal successors, (299), 28 states have internal predecessors, (299), 16 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 16 states have call predecessors, (21), 16 states have call successors, (21) [2025-03-17 15:30:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 2894 transitions. [2025-03-17 15:30:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 15:30:49,368 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:49,368 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:49,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-17 15:30:49,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-03-17 15:30:49,569 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:49,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash 84695485, now seen corresponding path program 3 times [2025-03-17 15:30:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:49,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594318933] [2025-03-17 15:30:49,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:30:49,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:49,576 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 7 equivalence classes. [2025-03-17 15:30:49,594 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 15:30:49,594 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-17 15:30:49,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:49,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610934801] [2025-03-17 15:30:49,595 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:30:49,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:49,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:49,598 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:49,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-17 15:30:49,625 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 7 equivalence classes. [2025-03-17 15:30:49,641 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 64 of 156 statements. [2025-03-17 15:30:49,642 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-17 15:30:49,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:49,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:30:49,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:49,702 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2025-03-17 15:30:49,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:49,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:49,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594318933] [2025-03-17 15:30:49,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:49,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610934801] [2025-03-17 15:30:49,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610934801] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:49,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:49,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:30:49,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030770151] [2025-03-17 15:30:49,864 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:49,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:30:49,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:49,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:30:49,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:30:49,866 INFO L87 Difference]: Start difference. First operand 2651 states and 2894 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 15:30:50,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:50,019 INFO L93 Difference]: Finished difference Result 2656 states and 2896 transitions. [2025-03-17 15:30:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:30:50,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 156 [2025-03-17 15:30:50,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:50,027 INFO L225 Difference]: With dead ends: 2656 [2025-03-17 15:30:50,027 INFO L226 Difference]: Without dead ends: 2652 [2025-03-17 15:30:50,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:30:50,028 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 19 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:50,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 115 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:50,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2025-03-17 15:30:50,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2639. [2025-03-17 15:30:50,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2487 states have (on average 1.0462404503417773) internal successors, (2602), 2499 states have internal predecessors, (2602), 137 states have call successors, (137), 11 states have call predecessors, (137), 11 states have return successors, (137), 128 states have call predecessors, (137), 137 states have call successors, (137) [2025-03-17 15:30:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 2876 transitions. [2025-03-17 15:30:50,131 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 2876 transitions. Word has length 156 [2025-03-17 15:30:50,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:50,132 INFO L471 AbstractCegarLoop]: Abstraction has 2639 states and 2876 transitions. [2025-03-17 15:30:50,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 15:30:50,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 2876 transitions. [2025-03-17 15:30:50,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 15:30:50,133 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:50,133 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:50,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-17 15:30:50,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-17 15:30:50,338 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:50,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:50,338 INFO L85 PathProgramCache]: Analyzing trace with hash 648967514, now seen corresponding path program 1 times [2025-03-17 15:30:50,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:50,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036124871] [2025-03-17 15:30:50,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:50,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:50,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 15:30:50,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 15:30:50,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:50,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:50,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529277527] [2025-03-17 15:30:50,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:30:50,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:50,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:50,356 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:50,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-17 15:30:50,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-17 15:30:50,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 15:30:50,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:30:50,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:50,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-17 15:30:50,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 15 proven. 288 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-17 15:30:51,357 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:53,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:53,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036124871] [2025-03-17 15:30:53,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:53,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529277527] [2025-03-17 15:30:53,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529277527] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:53,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:53,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2025-03-17 15:30:53,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868045280] [2025-03-17 15:30:53,499 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:53,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-17 15:30:53,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:53,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-17 15:30:53,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=731, Unknown=1, NotChecked=0, Total=870 [2025-03-17 15:30:53,500 INFO L87 Difference]: Start difference. First operand 2639 states and 2876 transitions. Second operand has 25 states, 23 states have (on average 5.565217391304348) internal successors, (128), 23 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:30:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:54,553 INFO L93 Difference]: Finished difference Result 2844 states and 3099 transitions. [2025-03-17 15:30:54,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-17 15:30:54,557 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 5.565217391304348) internal successors, (128), 23 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 156 [2025-03-17 15:30:54,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:54,564 INFO L225 Difference]: With dead ends: 2844 [2025-03-17 15:30:54,564 INFO L226 Difference]: Without dead ends: 2843 [2025-03-17 15:30:54,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=412, Invalid=1843, Unknown=1, NotChecked=0, Total=2256 [2025-03-17 15:30:54,566 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 131 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:54,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 466 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:30:54,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2843 states. [2025-03-17 15:30:54,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2843 to 2639. [2025-03-17 15:30:54,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2487 states have (on average 1.04583835946924) internal successors, (2601), 2499 states have internal predecessors, (2601), 137 states have call successors, (137), 11 states have call predecessors, (137), 11 states have return successors, (137), 128 states have call predecessors, (137), 137 states have call successors, (137) [2025-03-17 15:30:54,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 2875 transitions. [2025-03-17 15:30:54,666 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 2875 transitions. Word has length 156 [2025-03-17 15:30:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:54,667 INFO L471 AbstractCegarLoop]: Abstraction has 2639 states and 2875 transitions. [2025-03-17 15:30:54,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 5.565217391304348) internal successors, (128), 23 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:30:54,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 2875 transitions. [2025-03-17 15:30:54,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-17 15:30:54,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:54,669 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:54,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-17 15:30:54,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:54,870 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:54,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:54,870 INFO L85 PathProgramCache]: Analyzing trace with hash -306147907, now seen corresponding path program 2 times [2025-03-17 15:30:54,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:54,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586605559] [2025-03-17 15:30:54,870 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:54,874 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 156 statements into 2 equivalence classes. [2025-03-17 15:30:54,883 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 15:30:54,883 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:54,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:54,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267566952] [2025-03-17 15:30:54,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:54,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:54,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:54,886 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:54,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-17 15:30:54,911 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 156 statements into 2 equivalence classes. [2025-03-17 15:30:54,934 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 156 of 156 statements. [2025-03-17 15:30:54,935 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:54,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:54,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:30:54,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-03-17 15:30:55,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:55,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:55,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586605559] [2025-03-17 15:30:55,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:55,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267566952] [2025-03-17 15:30:55,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267566952] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:55,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:55,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-17 15:30:55,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86234200] [2025-03-17 15:30:55,433 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:55,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:30:55,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:55,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:30:55,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:30:55,434 INFO L87 Difference]: Start difference. First operand 2639 states and 2875 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:55,677 INFO L93 Difference]: Finished difference Result 2855 states and 3109 transitions. [2025-03-17 15:30:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:30:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 156 [2025-03-17 15:30:55,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:55,686 INFO L225 Difference]: With dead ends: 2855 [2025-03-17 15:30:55,686 INFO L226 Difference]: Without dead ends: 2851 [2025-03-17 15:30:55,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:30:55,688 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 21 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:55,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 231 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:55,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2025-03-17 15:30:55,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2628. [2025-03-17 15:30:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 2476 states have (on average 1.0452342487883683) internal successors, (2588), 2488 states have internal predecessors, (2588), 137 states have call successors, (137), 11 states have call predecessors, (137), 11 states have return successors, (137), 128 states have call predecessors, (137), 137 states have call successors, (137) [2025-03-17 15:30:55,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 2862 transitions. [2025-03-17 15:30:55,791 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 2862 transitions. Word has length 156 [2025-03-17 15:30:55,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:55,792 INFO L471 AbstractCegarLoop]: Abstraction has 2628 states and 2862 transitions. [2025-03-17 15:30:55,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-17 15:30:55,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 2862 transitions. [2025-03-17 15:30:55,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-03-17 15:30:55,794 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:55,794 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:55,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-17 15:30:55,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-17 15:30:55,995 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:55,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1964766063, now seen corresponding path program 2 times [2025-03-17 15:30:55,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:55,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755065993] [2025-03-17 15:30:55,996 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:55,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:56,001 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-03-17 15:30:56,010 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 15:30:56,010 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:56,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:30:56,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:56,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755065993] [2025-03-17 15:30:56,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755065993] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:56,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134030067] [2025-03-17 15:30:56,114 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:30:56,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:56,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:56,116 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:56,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-17 15:30:56,143 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-03-17 15:30:56,166 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-03-17 15:30:56,167 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:30:56,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:56,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:30:56,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:30:56,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 0 proven. 369 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-17 15:30:56,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134030067] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:30:56,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:30:56,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2025-03-17 15:30:56,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857128372] [2025-03-17 15:30:56,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:56,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 15:30:56,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:56,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 15:30:56,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:30:56,478 INFO L87 Difference]: Start difference. First operand 2628 states and 2862 transitions. Second operand has 17 states, 16 states have (on average 16.75) internal successors, (268), 17 states have internal predecessors, (268), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-17 15:30:56,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:56,711 INFO L93 Difference]: Finished difference Result 4095 states and 4560 transitions. [2025-03-17 15:30:56,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 15:30:56,712 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 16.75) internal successors, (268), 17 states have internal predecessors, (268), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 168 [2025-03-17 15:30:56,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:56,721 INFO L225 Difference]: With dead ends: 4095 [2025-03-17 15:30:56,721 INFO L226 Difference]: Without dead ends: 4094 [2025-03-17 15:30:56,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:30:56,722 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 26 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:56,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 234 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:56,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2025-03-17 15:30:56,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 4094. [2025-03-17 15:30:56,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 3865 states have (on average 1.0483829236739974) internal successors, (4052), 3876 states have internal predecessors, (4052), 214 states have call successors, (214), 11 states have call predecessors, (214), 11 states have return successors, (214), 206 states have call predecessors, (214), 214 states have call successors, (214) [2025-03-17 15:30:56,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 4480 transitions. [2025-03-17 15:30:56,847 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 4480 transitions. Word has length 168 [2025-03-17 15:30:56,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:56,847 INFO L471 AbstractCegarLoop]: Abstraction has 4094 states and 4480 transitions. [2025-03-17 15:30:56,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 16.75) internal successors, (268), 17 states have internal predecessors, (268), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-17 15:30:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 4480 transitions. [2025-03-17 15:30:56,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-17 15:30:56,850 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:56,850 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:56,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-17 15:30:57,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-17 15:30:57,051 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:57,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1892770619, now seen corresponding path program 3 times [2025-03-17 15:30:57,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:57,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400955896] [2025-03-17 15:30:57,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:30:57,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:57,056 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 179 statements into 8 equivalence classes. [2025-03-17 15:30:57,065 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 156 of 179 statements. [2025-03-17 15:30:57,065 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-17 15:30:57,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 263 proven. 115 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2025-03-17 15:30:57,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:57,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400955896] [2025-03-17 15:30:57,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400955896] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:57,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690199138] [2025-03-17 15:30:57,225 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:30:57,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:57,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:57,227 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:57,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-17 15:30:57,253 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 179 statements into 8 equivalence classes. [2025-03-17 15:30:57,291 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) and asserted 110 of 179 statements. [2025-03-17 15:30:57,291 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2025-03-17 15:30:57,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:57,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:30:57,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 228 proven. 69 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-03-17 15:30:57,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:57,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690199138] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:57,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:30:57,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-03-17 15:30:57,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751241016] [2025-03-17 15:30:57,620 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:57,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 15:30:57,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:57,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 15:30:57,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:30:57,621 INFO L87 Difference]: Start difference. First operand 4094 states and 4480 transitions. Second operand has 15 states, 15 states have (on average 12.866666666666667) internal successors, (193), 15 states have internal predecessors, (193), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2025-03-17 15:30:58,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:58,206 INFO L93 Difference]: Finished difference Result 8425 states and 9252 transitions. [2025-03-17 15:30:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 15:30:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.866666666666667) internal successors, (193), 15 states have internal predecessors, (193), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 179 [2025-03-17 15:30:58,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:58,220 INFO L225 Difference]: With dead ends: 8425 [2025-03-17 15:30:58,221 INFO L226 Difference]: Without dead ends: 5353 [2025-03-17 15:30:58,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=654, Unknown=0, NotChecked=0, Total=812 [2025-03-17 15:30:58,226 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 142 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:58,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 727 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:30:58,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5353 states. [2025-03-17 15:30:58,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5353 to 3782. [2025-03-17 15:30:58,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 3567 states have (on average 1.0417717970283151) internal successors, (3716), 3578 states have internal predecessors, (3716), 200 states have call successors, (200), 11 states have call predecessors, (200), 11 states have return successors, (200), 192 states have call predecessors, (200), 200 states have call successors, (200) [2025-03-17 15:30:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 4116 transitions. [2025-03-17 15:30:58,384 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 4116 transitions. Word has length 179 [2025-03-17 15:30:58,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:58,384 INFO L471 AbstractCegarLoop]: Abstraction has 3782 states and 4116 transitions. [2025-03-17 15:30:58,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.866666666666667) internal successors, (193), 15 states have internal predecessors, (193), 9 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2025-03-17 15:30:58,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 4116 transitions. [2025-03-17 15:30:58,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2025-03-17 15:30:58,389 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:58,389 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:58,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:58,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:58,590 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:58,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:58,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1937670649, now seen corresponding path program 4 times [2025-03-17 15:30:58,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:58,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785113236] [2025-03-17 15:30:58,590 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:30:58,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:58,597 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 202 statements into 2 equivalence classes. [2025-03-17 15:30:58,617 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 202 of 202 statements. [2025-03-17 15:30:58,619 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:30:58,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:58,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756946883] [2025-03-17 15:30:58,621 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:30:58,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:58,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:58,623 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:58,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-17 15:30:58,648 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 202 statements into 2 equivalence classes. [2025-03-17 15:30:58,686 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 202 of 202 statements. [2025-03-17 15:30:58,686 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:30:58,686 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:58,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:30:58,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:30:59,018 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 471 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-17 15:30:59,018 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:30:59,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:30:59,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785113236] [2025-03-17 15:30:59,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:30:59,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756946883] [2025-03-17 15:30:59,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756946883] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:30:59,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:30:59,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-17 15:30:59,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210504272] [2025-03-17 15:30:59,134 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:30:59,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 15:30:59,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:30:59,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 15:30:59,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:30:59,135 INFO L87 Difference]: Start difference. First operand 3782 states and 4116 transitions. Second operand has 9 states, 8 states have (on average 14.875) internal successors, (119), 9 states have internal predecessors, (119), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-17 15:30:59,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:30:59,399 INFO L93 Difference]: Finished difference Result 4612 states and 4988 transitions. [2025-03-17 15:30:59,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:30:59,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.875) internal successors, (119), 9 states have internal predecessors, (119), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 202 [2025-03-17 15:30:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:30:59,408 INFO L225 Difference]: With dead ends: 4612 [2025-03-17 15:30:59,408 INFO L226 Difference]: Without dead ends: 4611 [2025-03-17 15:30:59,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:30:59,409 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 23 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:30:59,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 236 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:30:59,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4611 states. [2025-03-17 15:30:59,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4611 to 3782. [2025-03-17 15:30:59,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 3567 states have (on average 1.0414914493972527) internal successors, (3715), 3578 states have internal predecessors, (3715), 200 states have call successors, (200), 11 states have call predecessors, (200), 11 states have return successors, (200), 192 states have call predecessors, (200), 200 states have call successors, (200) [2025-03-17 15:30:59,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 4115 transitions. [2025-03-17 15:30:59,524 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 4115 transitions. Word has length 202 [2025-03-17 15:30:59,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:30:59,524 INFO L471 AbstractCegarLoop]: Abstraction has 3782 states and 4115 transitions. [2025-03-17 15:30:59,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.875) internal successors, (119), 9 states have internal predecessors, (119), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-17 15:30:59,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 4115 transitions. [2025-03-17 15:30:59,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2025-03-17 15:30:59,526 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:30:59,527 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:30:59,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-17 15:30:59,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:59,727 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:30:59,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:30:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1236857979, now seen corresponding path program 5 times [2025-03-17 15:30:59,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:30:59,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140928004] [2025-03-17 15:30:59,729 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:30:59,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:30:59,736 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 202 statements into 9 equivalence classes. [2025-03-17 15:30:59,757 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 202 of 202 statements. [2025-03-17 15:30:59,757 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-03-17 15:30:59,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:30:59,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1936116887] [2025-03-17 15:30:59,758 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:30:59,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:30:59,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:30:59,760 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:30:59,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-17 15:30:59,808 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 202 statements into 9 equivalence classes. [2025-03-17 15:30:59,844 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) and asserted 202 of 202 statements. [2025-03-17 15:30:59,844 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2025-03-17 15:30:59,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:30:59,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-03-17 15:30:59,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:31:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 12 proven. 544 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2025-03-17 15:31:01,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:31:01,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:31:01,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140928004] [2025-03-17 15:31:01,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:31:01,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936116887] [2025-03-17 15:31:01,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936116887] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:01,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:31:01,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2025-03-17 15:31:01,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738689278] [2025-03-17 15:31:01,705 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:31:01,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-17 15:31:01,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:31:01,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-17 15:31:01,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332 [2025-03-17 15:31:01,706 INFO L87 Difference]: Start difference. First operand 3782 states and 4115 transitions. Second operand has 33 states, 32 states have (on average 5.125) internal successors, (164), 31 states have internal predecessors, (164), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:31:03,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:31:03,427 INFO L93 Difference]: Finished difference Result 4055 states and 4412 transitions. [2025-03-17 15:31:03,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-17 15:31:03,428 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.125) internal successors, (164), 31 states have internal predecessors, (164), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 202 [2025-03-17 15:31:03,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:31:03,435 INFO L225 Difference]: With dead ends: 4055 [2025-03-17 15:31:03,435 INFO L226 Difference]: Without dead ends: 4054 [2025-03-17 15:31:03,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 179 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=255, Invalid=2097, Unknown=0, NotChecked=0, Total=2352 [2025-03-17 15:31:03,436 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 65 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 3698 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 3700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:31:03,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1568 Invalid, 3700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3698 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-17 15:31:03,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4054 states. [2025-03-17 15:31:03,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4054 to 3782. [2025-03-17 15:31:03,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 3567 states have (on average 1.04121110176619) internal successors, (3714), 3578 states have internal predecessors, (3714), 200 states have call successors, (200), 11 states have call predecessors, (200), 11 states have return successors, (200), 192 states have call predecessors, (200), 200 states have call successors, (200) [2025-03-17 15:31:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 4114 transitions. [2025-03-17 15:31:03,562 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 4114 transitions. Word has length 202 [2025-03-17 15:31:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:31:03,564 INFO L471 AbstractCegarLoop]: Abstraction has 3782 states and 4114 transitions. [2025-03-17 15:31:03,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.125) internal successors, (164), 31 states have internal predecessors, (164), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:31:03,564 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 4114 transitions. [2025-03-17 15:31:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-03-17 15:31:03,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:31:03,569 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:31:03,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-17 15:31:03,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:03,770 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:31:03,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:31:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1787442379, now seen corresponding path program 2 times [2025-03-17 15:31:03,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:31:03,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663240179] [2025-03-17 15:31:03,771 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:31:03,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:31:03,776 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 217 statements into 2 equivalence classes. [2025-03-17 15:31:03,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 217 of 217 statements. [2025-03-17 15:31:03,784 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:31:03,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:31:03,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:31:03,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663240179] [2025-03-17 15:31:03,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663240179] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:03,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101347633] [2025-03-17 15:31:03,938 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:31:03,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:31:03,940 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:31:03,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-17 15:31:03,968 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 217 statements into 2 equivalence classes. [2025-03-17 15:31:03,998 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 217 of 217 statements. [2025-03-17 15:31:03,999 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:31:03,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:04,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:31:04,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:31:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:31:04,142 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:31:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:31:04,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101347633] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:31:04,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:31:04,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-03-17 15:31:04,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582835611] [2025-03-17 15:31:04,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:31:04,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 15:31:04,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:31:04,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 15:31:04,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-17 15:31:04,366 INFO L87 Difference]: Start difference. First operand 3782 states and 4114 transitions. Second operand has 21 states, 20 states have (on average 17.3) internal successors, (346), 21 states have internal predecessors, (346), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-17 15:31:04,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:31:04,949 INFO L93 Difference]: Finished difference Result 11253 states and 12174 transitions. [2025-03-17 15:31:04,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 15:31:04,950 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.3) internal successors, (346), 21 states have internal predecessors, (346), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 217 [2025-03-17 15:31:04,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:31:04,969 INFO L225 Difference]: With dead ends: 11253 [2025-03-17 15:31:04,969 INFO L226 Difference]: Without dead ends: 11252 [2025-03-17 15:31:04,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-17 15:31:04,973 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 302 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:31:04,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 384 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:31:04,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2025-03-17 15:31:05,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 7179. [2025-03-17 15:31:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7179 states, 6785 states have (on average 1.0467207074428888) internal successors, (7102), 6795 states have internal predecessors, (7102), 379 states have call successors, (379), 11 states have call predecessors, (379), 11 states have return successors, (379), 372 states have call predecessors, (379), 379 states have call successors, (379) [2025-03-17 15:31:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7179 states to 7179 states and 7860 transitions. [2025-03-17 15:31:05,240 INFO L78 Accepts]: Start accepts. Automaton has 7179 states and 7860 transitions. Word has length 217 [2025-03-17 15:31:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:31:05,240 INFO L471 AbstractCegarLoop]: Abstraction has 7179 states and 7860 transitions. [2025-03-17 15:31:05,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.3) internal successors, (346), 21 states have internal predecessors, (346), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-17 15:31:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 7179 states and 7860 transitions. [2025-03-17 15:31:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2025-03-17 15:31:05,242 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:31:05,243 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:31:05,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-17 15:31:05,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:05,443 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:31:05,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:31:05,444 INFO L85 PathProgramCache]: Analyzing trace with hash -487020412, now seen corresponding path program 6 times [2025-03-17 15:31:05,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:31:05,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345472713] [2025-03-17 15:31:05,444 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:31:05,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:31:05,453 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 225 statements into 10 equivalence classes. [2025-03-17 15:31:05,470 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) and asserted 225 of 225 statements. [2025-03-17 15:31:05,470 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2025-03-17 15:31:05,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:31:05,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:31:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345472713] [2025-03-17 15:31:05,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345472713] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:05,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793989825] [2025-03-17 15:31:05,657 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 15:31:05,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:31:05,661 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:31:05,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-17 15:31:05,690 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 225 statements into 10 equivalence classes. [2025-03-17 15:31:05,739 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 179 of 225 statements. [2025-03-17 15:31:05,741 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-03-17 15:31:05,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:05,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 15:31:05,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:31:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 0 proven. 508 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2025-03-17 15:31:06,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:31:06,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793989825] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:06,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:31:06,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2025-03-17 15:31:06,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037474086] [2025-03-17 15:31:06,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:31:06,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-17 15:31:06,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:31:06,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-17 15:31:06,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2025-03-17 15:31:06,217 INFO L87 Difference]: Start difference. First operand 7179 states and 7860 transitions. Second operand has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2025-03-17 15:31:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:31:07,085 INFO L93 Difference]: Finished difference Result 17117 states and 18802 transitions. [2025-03-17 15:31:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-17 15:31:07,085 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 225 [2025-03-17 15:31:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:31:07,111 INFO L225 Difference]: With dead ends: 17117 [2025-03-17 15:31:07,111 INFO L226 Difference]: Without dead ends: 12057 [2025-03-17 15:31:07,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 15:31:07,123 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 163 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:31:07,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 854 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:31:07,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12057 states. [2025-03-17 15:31:07,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12057 to 8515. [2025-03-17 15:31:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8515 states, 8051 states have (on average 1.0455843994534841) internal successors, (8418), 8060 states have internal predecessors, (8418), 449 states have call successors, (449), 11 states have call predecessors, (449), 11 states have return successors, (449), 443 states have call predecessors, (449), 449 states have call successors, (449) [2025-03-17 15:31:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8515 states to 8515 states and 9316 transitions. [2025-03-17 15:31:07,517 INFO L78 Accepts]: Start accepts. Automaton has 8515 states and 9316 transitions. Word has length 225 [2025-03-17 15:31:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:31:07,518 INFO L471 AbstractCegarLoop]: Abstraction has 8515 states and 9316 transitions. [2025-03-17 15:31:07,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.631578947368421) internal successors, (278), 19 states have internal predecessors, (278), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2025-03-17 15:31:07,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8515 states and 9316 transitions. [2025-03-17 15:31:07,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2025-03-17 15:31:07,520 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:31:07,520 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:31:07,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2025-03-17 15:31:07,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-03-17 15:31:07,724 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:31:07,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:31:07,725 INFO L85 PathProgramCache]: Analyzing trace with hash -348951326, now seen corresponding path program 7 times [2025-03-17 15:31:07,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:31:07,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503281540] [2025-03-17 15:31:07,725 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 15:31:07,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:31:07,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-03-17 15:31:07,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-03-17 15:31:07,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:31:07,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:07,903 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 183 proven. 499 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:31:07,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:31:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503281540] [2025-03-17 15:31:07,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503281540] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:07,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401275995] [2025-03-17 15:31:07,904 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 15:31:07,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:07,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:31:07,906 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:31:07,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-17 15:31:07,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 225 statements into 1 equivalence classes. [2025-03-17 15:31:07,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 225 of 225 statements. [2025-03-17 15:31:07,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:31:07,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:07,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:31:07,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:31:08,206 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:31:08,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:31:08,386 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-17 15:31:08,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401275995] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:31:08,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:31:08,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2025-03-17 15:31:08,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364657797] [2025-03-17 15:31:08,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:31:08,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 15:31:08,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:31:08,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 15:31:08,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:31:08,388 INFO L87 Difference]: Start difference. First operand 8515 states and 9316 transitions. Second operand has 18 states, 18 states have (on average 15.722222222222221) internal successors, (283), 18 states have internal predecessors, (283), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-17 15:31:08,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:31:08,851 INFO L93 Difference]: Finished difference Result 9955 states and 10874 transitions. [2025-03-17 15:31:08,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:31:08,851 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.722222222222221) internal successors, (283), 18 states have internal predecessors, (283), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 225 [2025-03-17 15:31:08,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:31:08,863 INFO L225 Difference]: With dead ends: 9955 [2025-03-17 15:31:08,863 INFO L226 Difference]: Without dead ends: 8435 [2025-03-17 15:31:08,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 435 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:31:08,867 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 37 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:31:08,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 623 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:31:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8435 states. [2025-03-17 15:31:09,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8435 to 8427. [2025-03-17 15:31:09,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8427 states, 7967 states have (on average 1.043303627463286) internal successors, (8312), 7977 states have internal predecessors, (8312), 445 states have call successors, (445), 11 states have call predecessors, (445), 11 states have return successors, (445), 438 states have call predecessors, (445), 445 states have call successors, (445) [2025-03-17 15:31:09,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8427 states to 8427 states and 9202 transitions. [2025-03-17 15:31:09,159 INFO L78 Accepts]: Start accepts. Automaton has 8427 states and 9202 transitions. Word has length 225 [2025-03-17 15:31:09,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:31:09,160 INFO L471 AbstractCegarLoop]: Abstraction has 8427 states and 9202 transitions. [2025-03-17 15:31:09,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.722222222222221) internal successors, (283), 18 states have internal predecessors, (283), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-17 15:31:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8427 states and 9202 transitions. [2025-03-17 15:31:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2025-03-17 15:31:09,164 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:31:09,164 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:31:09,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2025-03-17 15:31:09,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:09,364 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:31:09,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:31:09,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2064167047, now seen corresponding path program 3 times [2025-03-17 15:31:09,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:31:09,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500317279] [2025-03-17 15:31:09,365 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:31:09,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:31:09,371 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 248 statements into 11 equivalence classes. [2025-03-17 15:31:09,393 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 248 of 248 statements. [2025-03-17 15:31:09,393 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 15:31:09,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:31:09,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373934895] [2025-03-17 15:31:09,395 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:31:09,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:09,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:31:09,397 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:31:09,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-17 15:31:09,423 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 248 statements into 11 equivalence classes. [2025-03-17 15:31:09,495 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 225 of 248 statements. [2025-03-17 15:31:09,495 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-03-17 15:31:09,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:09,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:31:09,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:31:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 15 proven. 735 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2025-03-17 15:31:09,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:31:09,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:31:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500317279] [2025-03-17 15:31:09,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:31:09,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373934895] [2025-03-17 15:31:09,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373934895] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:09,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:31:09,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-17 15:31:09,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612287128] [2025-03-17 15:31:09,970 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:31:09,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 15:31:09,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:31:09,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 15:31:09,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:31:09,971 INFO L87 Difference]: Start difference. First operand 8427 states and 9202 transitions. Second operand has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 12 states have internal predecessors, (155), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 15:31:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:31:10,750 INFO L93 Difference]: Finished difference Result 9527 states and 10350 transitions. [2025-03-17 15:31:10,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-17 15:31:10,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 12 states have internal predecessors, (155), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 248 [2025-03-17 15:31:10,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:31:10,764 INFO L225 Difference]: With dead ends: 9527 [2025-03-17 15:31:10,764 INFO L226 Difference]: Without dead ends: 9260 [2025-03-17 15:31:10,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=947, Unknown=0, NotChecked=0, Total=1190 [2025-03-17 15:31:10,767 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 264 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:31:10,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 382 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:31:10,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9260 states. [2025-03-17 15:31:11,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9260 to 8374. [2025-03-17 15:31:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8374 states, 7917 states have (on average 1.0431981811292157) internal successors, (8259), 7926 states have internal predecessors, (8259), 442 states have call successors, (442), 11 states have call predecessors, (442), 11 states have return successors, (442), 436 states have call predecessors, (442), 442 states have call successors, (442) [2025-03-17 15:31:11,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8374 states to 8374 states and 9143 transitions. [2025-03-17 15:31:11,111 INFO L78 Accepts]: Start accepts. Automaton has 8374 states and 9143 transitions. Word has length 248 [2025-03-17 15:31:11,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:31:11,112 INFO L471 AbstractCegarLoop]: Abstraction has 8374 states and 9143 transitions. [2025-03-17 15:31:11,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 12 states have internal predecessors, (155), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 15:31:11,112 INFO L276 IsEmpty]: Start isEmpty. Operand 8374 states and 9143 transitions. [2025-03-17 15:31:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2025-03-17 15:31:11,114 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:31:11,114 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:31:11,120 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-17 15:31:11,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:11,315 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:31:11,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:31:11,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1473751902, now seen corresponding path program 4 times [2025-03-17 15:31:11,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:31:11,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419586708] [2025-03-17 15:31:11,315 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:31:11,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:31:11,321 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 248 statements into 2 equivalence classes. [2025-03-17 15:31:11,333 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 248 of 248 statements. [2025-03-17 15:31:11,337 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:31:11,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:31:11,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831719139] [2025-03-17 15:31:11,339 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 15:31:11,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:11,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:31:11,341 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:31:11,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-17 15:31:11,366 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 248 statements into 2 equivalence classes. [2025-03-17 15:31:11,403 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 248 of 248 statements. [2025-03-17 15:31:11,403 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 15:31:11,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:11,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 70 conjuncts are in the unsatisfiable core [2025-03-17 15:31:11,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:31:13,104 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-17 15:31:13,551 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-17 15:31:14,081 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-17 15:31:14,625 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-17 15:31:14,675 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-17 15:31:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1015 backedges. 24 proven. 873 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-17 15:31:14,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:31:15,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:31:15,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419586708] [2025-03-17 15:31:15,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:31:15,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831719139] [2025-03-17 15:31:15,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831719139] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:15,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:31:15,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2025-03-17 15:31:15,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232027809] [2025-03-17 15:31:15,081 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:31:15,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-03-17 15:31:15,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:31:15,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-03-17 15:31:15,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1750, Unknown=0, NotChecked=0, Total=1980 [2025-03-17 15:31:15,082 INFO L87 Difference]: Start difference. First operand 8374 states and 9143 transitions. Second operand has 41 states, 39 states have (on average 5.128205128205129) internal successors, (200), 37 states have internal predecessors, (200), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:31:17,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:31:17,945 INFO L93 Difference]: Finished difference Result 8881 states and 9697 transitions. [2025-03-17 15:31:17,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2025-03-17 15:31:17,945 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 39 states have (on average 5.128205128205129) internal successors, (200), 37 states have internal predecessors, (200), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 248 [2025-03-17 15:31:17,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:31:17,958 INFO L225 Difference]: With dead ends: 8881 [2025-03-17 15:31:17,959 INFO L226 Difference]: Without dead ends: 8877 [2025-03-17 15:31:17,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1000 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=431, Invalid=3859, Unknown=0, NotChecked=0, Total=4290 [2025-03-17 15:31:17,963 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 104 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 5180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 5191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 5180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-17 15:31:17,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1800 Invalid, 5191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 5180 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-17 15:31:17,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2025-03-17 15:31:18,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 8596. [2025-03-17 15:31:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8596 states, 8128 states have (on average 1.0434301181102361) internal successors, (8481), 8136 states have internal predecessors, (8481), 453 states have call successors, (453), 11 states have call predecessors, (453), 11 states have return successors, (453), 448 states have call predecessors, (453), 453 states have call successors, (453) [2025-03-17 15:31:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8596 states to 8596 states and 9387 transitions. [2025-03-17 15:31:18,261 INFO L78 Accepts]: Start accepts. Automaton has 8596 states and 9387 transitions. Word has length 248 [2025-03-17 15:31:18,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:31:18,261 INFO L471 AbstractCegarLoop]: Abstraction has 8596 states and 9387 transitions. [2025-03-17 15:31:18,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 39 states have (on average 5.128205128205129) internal successors, (200), 37 states have internal predecessors, (200), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-17 15:31:18,262 INFO L276 IsEmpty]: Start isEmpty. Operand 8596 states and 9387 transitions. [2025-03-17 15:31:18,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2025-03-17 15:31:18,264 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:31:18,264 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:31:18,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-17 15:31:18,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-17 15:31:18,464 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-17 15:31:18,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:31:18,465 INFO L85 PathProgramCache]: Analyzing trace with hash -102398075, now seen corresponding path program 5 times [2025-03-17 15:31:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:31:18,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197884963] [2025-03-17 15:31:18,465 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:31:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:31:18,472 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 271 statements into 12 equivalence classes. [2025-03-17 15:31:18,491 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) and asserted 271 of 271 statements. [2025-03-17 15:31:18,491 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2025-03-17 15:31:18,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:18,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 999 proven. 18 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-03-17 15:31:18,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:31:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197884963] [2025-03-17 15:31:18,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197884963] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:31:18,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544792049] [2025-03-17 15:31:18,987 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 15:31:18,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:31:18,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:31:18,988 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:31:18,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-17 15:31:19,016 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 271 statements into 12 equivalence classes. [2025-03-17 15:31:19,063 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) and asserted 271 of 271 statements. [2025-03-17 15:31:19,063 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2025-03-17 15:31:19,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:31:19,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:31:19,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:31:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 313 proven. 704 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-03-17 15:31:19,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:31:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 313 proven. 704 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-03-17 15:31:19,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544792049] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:31:19,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:31:19,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 14, 14] total 43 [2025-03-17 15:31:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932753132] [2025-03-17 15:31:19,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:31:19,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2025-03-17 15:31:19,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:31:19,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2025-03-17 15:31:19,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1533, Unknown=0, NotChecked=0, Total=1806 [2025-03-17 15:31:19,714 INFO L87 Difference]: Start difference. First operand 8596 states and 9387 transitions. Second operand has 43 states, 43 states have (on average 11.55813953488372) internal successors, (497), 43 states have internal predecessors, (497), 29 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 29 states have call predecessors, (31), 29 states have call successors, (31) [2025-03-17 15:31:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:31:23,578 INFO L93 Difference]: Finished difference Result 8806 states and 9602 transitions. [2025-03-17 15:31:23,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2025-03-17 15:31:23,578 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 11.55813953488372) internal successors, (497), 43 states have internal predecessors, (497), 29 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 29 states have call predecessors, (31), 29 states have call successors, (31) Word has length 271 [2025-03-17 15:31:23,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:31:23,581 INFO L225 Difference]: With dead ends: 8806 [2025-03-17 15:31:23,581 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 15:31:23,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 518 SyntacticMatches, 7 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15579 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=9844, Invalid=37898, Unknown=0, NotChecked=0, Total=47742 [2025-03-17 15:31:23,592 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 151 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 4499 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 4515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:31:23,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 2286 Invalid, 4515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4499 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-17 15:31:23,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 15:31:23,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 15:31:23,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:31:23,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 15:31:23,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 271 [2025-03-17 15:31:23,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:31:23,594 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 15:31:23,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 11.55813953488372) internal successors, (497), 43 states have internal predecessors, (497), 29 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 29 states have call predecessors, (31), 29 states have call successors, (31) [2025-03-17 15:31:23,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 15:31:23,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 15:31:23,597 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2025-03-17 15:31:23,597 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2025-03-17 15:31:23,597 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2025-03-17 15:31:23,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2025-03-17 15:31:23,599 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2025-03-17 15:31:23,599 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2025-03-17 15:31:23,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-03-17 15:31:23,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-17 15:31:23,802 INFO L422 BasicCegarLoop]: Path program histogram: [7, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:31:23,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.